JP2003081546A - Information transmission control device for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a low-cost information transmission control device for an elevator improved in the response speed. SOLUTION: This information transmission control device for an elevator serially transmits the control information of the elevator between a master station and slave stations in a cycle. This information transmission control device is provided with a ROM element 18 for storing transmission control setting data as a transmission control setting table possible to be read out even if a power source is turned off, and a table changing means such as a higher rank CPU for changing the transmission control setting table to change the content to be transmitted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator information transmission control device, and more particularly to an information transmission control device for cyclically exchanging information between a master station and a slave station.

[0002]

2. Description of the Related Art Conventionally, in an information transmission control device for cyclically transmitting control information in an elevator control system, address information is sent from a master station and a slave station corresponding to the address responds to data input / output. When the address information can be correctly received, the read data transmission response and the data writing process are performed. To do this, a microcomputer was used, and the decision as to whether the transmission was intended for the station was made using the data in the microcomputer program. In addition, it is necessary to create a dedicated program for each transmission station having various functions, and therefore manage the program for each type of transmission station and perform maintenance.

[0003]

In a system using a microcomputer, it is necessary to use an expensive microcomputer with high performance in order to obtain a response performance above a certain level. If you use an inexpensive microcomputer to reduce the system price,
The response performance deteriorated, and the system scale and functions were restricted.

Further, in the conventional system, the data for judging the response area for the own station is included in the program of the microcomputer, and when the area content is changed, it is changed from the program data. It was necessary to find out the part, correct it, and deal with it. Furthermore, it was necessary to create a program for each type of transmission station, and it was necessary to manage many programs.

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above-mentioned problems, and an object of the present invention is to provide an elevator information transmission control device which is inexpensive and can increase the response speed.

A further object of the present invention is to provide an elevator information transmission control device in which address data can be easily changed.

Still another object of the present invention is to provide an elevator information transmission control device capable of supporting many types of transmission stations.

[0008]

In order to achieve the above object, an elevator information transmission control apparatus according to a first aspect of the present invention cyclically serializes elevator control information between a master station and a slave station. In the information transmission control device of the elevator to be transmitted, the transmission control setting data is stored as a transmission control setting table, and a ROM element that can be read even when the power is turned off and a transmission control setting table for changing the transmission processing content are provided. And a table changing means for changing the table.

According to a second aspect of the present invention, in the elevator information transmission control device according to the first aspect, there is provided input means for changing the content of the ROM element onboard.
The table changing means changes the transmission control setting table in the ROM element via the input means to change the contents of the transmission processing.

According to a third aspect of the invention, in the information transmission control device for an elevator according to the second aspect, an interface is provided between the host CPU and the host CPU, and the table changing means is RO.
It is characterized in that the content of the transmission process is changed by changing the transmission control setting table in the M element via the interface according to the setting from the upper CPU.

According to a fourth aspect of the present invention, in the elevator information transmission control apparatus according to the first aspect, the table changing means changes the transmission control setting table in the ROM element according to the transmission content from the master station. It is characterized in that the contents of transmission processing are changed.

According to a fifth aspect of the present invention, in the elevator information transmission control device according to the first aspect, the contents of the ROM element have input / output operation setting information in addition to the transmission control information, and the table changing means is It is characterized in that the input / output processing operation is changed by changing the input / output operation setting information.

The invention according to claim 6 is the invention according to claim 4 or 5.
The information transmission control device for an elevator according to claim 1, further comprising an input / output circuit shared with another information transmission control device, wherein the table changing means is a ROM according to the transmission content from the master station.
By changing at least one of the transmission control information and the input / output information in the element, another control circuit that shares the input / output when a failure occurs in one input / output control circuit causes the input / output control circuit of the failure occurrence to enter the input / output control circuit. It is characterized in that the output processing is performed on behalf.

According to a seventh aspect of the present invention, in the elevator information transmission control apparatus according to the fifth aspect, the contents of the ROM element have operating model information in addition to the input / output control information.
It is characterized in that the interpretation method of input / output control is changed according to the operating model information.

The invention according to claim 8 is the information transmission control device for an elevator according to claim 5, characterized in that the contents of the ROM element have macro operation setting data in addition to the input / output control information. To do.

According to a ninth aspect of the present invention, in the information transmission control device for an elevator according to the fifth aspect, the information transmission control device is connected to two transmission lines, and information can be transferred between the lines in the input / output control setting table. It is characterized in that it includes an inter-system data transfer description.

According to a tenth aspect of the present invention, in the elevator information transmission control device according to the first aspect, the transmission control information can respond to the address given to the external switch in addition to the setting information in the ROM element. It is characterized by having a function.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION (Structure of Embodiment) <FIG. 1: Elevator information transmission control system structure diagram> FIG.
FIG. 1 is a configuration diagram showing an overall configuration of an elevator information transmission control device according to the present invention.

The master controller 1 performs system control and car operation control for each elevator car, and the transmission line 5
Through the hall controller 3 for switch input and display output in the elevator hall, and the car controller 4 for switch input and display output inside the elevator car. The master controller 1 operates as a transmission master, and the hall controller 3 and the car controller 4 operate as local stations or transmission slaves. The hall controllers 3 of the halls are connected to each other via the input / output signal 7 common to the hall controllers, and the input / output signals are commonly used. An information transfer controller 6 is connected between the transmission lines 5 of each elevator.

The internal configurations of the master controller 1, the hall controller 3, the car controller 4, and the information transfer controller 6 will be described below. The internal configurations of each are similar in terms of hardware and have the same or similar functions. The same reference numerals are given to the circuit elements having the description.

<FIG. 2: Master controller configuration diagram> FIG.
3 is an internal configuration diagram of the master controller 1. FIG.

Car operation control by the host CPU 11
The transmission data contents are created and connected to the transmission control circuit 12 via the local bus 20.
Give and receive. The transmission control circuit 12 is connected via a RAM input / output line 21 to a common RAM 14 that stores transmission setting data, transmission input / output data, and the like. Host CPU
By sending an access request from 11 to the transmission control circuit 12, the transmission control circuit 12 inputs / outputs data from / to the common RAM 14.

The transmission control circuit 12 is connected to the transmission line 5 via the RS485 interface 13. When the transmission control circuit 12 receives the transmission execution command from the host CPU 11, it reads the transmission operation setting data from the common RAM 14 and performs transmission / reception processing according to the content of the data. Further, the transmission control circuit 12 is connected to the setting ROM 18 via the ROM input / output line 19, and this setting RO is set at the time of initialization.
The type data and the transmission operation setting data are extracted from M18 and stored in the common RAM 14. Further, the transmission control circuit 12 sets the transmission operation setting data stored in the common RAM 14 according to a command from the host CPU 11 to set R.
Can be written to OM18.

<FIG. 3: Hall controller configuration diagram> FIG.
3 is an internal configuration diagram of the hall controller 3. FIG.

The transmission control circuit 12 is connected to the push button display LED 22 and the shared IO interface 26 via the local bus 20. The transmission control circuit 12 is a common RA that stores transmission setting data and transmission input / output data.
It is connected to M14 via the RAM input / output line 21, and R
It is connected to the transmission line 5 through the S485 interface 13, and further, the RO is set through the ROM input / output controller 19.
It is connected to M18. The transmission control circuit 12 takes out the type data, the transmission operation setting data, and the input / output operation setting data from the setting ROM 18 at the time of initialization, and stores them in the common RAM 14. After that, the transmission operation setting data is read from the common RAM 14, and the transmission / reception processing is performed according to the content of the data.

In the transmission control circuit 12, according to the transmission setting performed from the master controller 1 via the transmission line 5,
The transmission operation setting data and the input / output operation setting data stored in the common RAM 14 are changed and written in the setting ROM 18. It also receives address information from the addressing switch 23 and compares it with the transmission response address. The shared IO interface 26 is used for the shared output signal 24 and the shared input signal 2 with the hall controllers 3 on the other floors.
5 is connected.

<FIG. 4: Car Controller Configuration Diagram> FIG. 4 is an internal configuration diagram of the car controller 4.

The transmission control circuit 12 is connected to the push button display LED 22 via the local bus 20 and sends and receives the bus control signal 15. The transmission control circuit 12 includes a common RAM 14 for storing transmission setting data and transmission input / output data and RA.
It is connected via the M input / output line 21 and connected to the transmission line 5 via the RS485 interface 13.

Further, the transmission control circuit 12 has a setting ROM 18
And a ROM input / output line 19 are connected. The transmission control circuit 12 extracts the type data, the transmission operation setting data, and the input / output operation setting data from the setting ROM 18 at the time of initialization, and stores them in the common RAM 14.
After that, the transmission operation setting data is read from the common RAM 14, the transmission / reception processing is performed according to the content of the data, and the data is input / output according to the content of the input / output operation setting data. Further, the transmission control circuit 12 uses the device number designation switch 2
The device number information 27 is received from 8 and the transmission response address is changed.

<FIG. 5: Information Transfer Controller Configuration Diagram> FIG. 5 is an internal configuration diagram of the information transfer controller 6.

The transmission control circuit 12 is interconnected with the transmission control circuits of other systems via the local bus 20. The transmission control circuit 12 is connected to a common RAM 14 that stores transmission setting data and transmission input / output data via a RAM input / output line 21, and is connected to a transmission line 5 via an RS485 interface 13.

Further, the transmission control circuit 12 is connected to the setting ROM 18 via the ROM input / output line 19, and the type data, the transmission operation setting data, and the input / output operation setting data are taken out from the setting ROM 18 at the time of initialization and shared by them. Save in RAM14. After that, the common RAM 14
The transmission operation setting data is read from and the transmission / reception processing is performed according to the content of the data. Further, by using the input / output operation setting data stored in the setting ROM 18, information mutually transmitted is transferred via the local bus 20.

<FIG. 6: Internal Configuration of Transmission Control Circuit> FIG. 6 is an internal configuration diagram of the transmission control circuit 12 used in each controller.

The local bus 20 is the bus interface 3
Connected to 1. In the case of a controller connected to the host CPU 11 like the master controller 1, the bus interface 31 stores the operation setting contents from the host CPU 11 in an internal register. The operation settings are made regarding transmission start, operation mode, timeout time, and the like. Further, the state of occurrence of transmission abnormality, the number of times, etc. are stored in an internal register so that the host CPU 11 can read them. The operation setting and the transmission abnormality information are exchanged with the transmission interface circuit 32 via the transmission IF / bus IF input / output signal 35. In a configuration in which the host interface 11 is not connected to another host CPU 11, data input / output operation is periodically performed from the bus interface 31 after completion of initial setting.

The transmission control circuit 12 has a RA in addition to the bus interface 31 and the transmission interface circuit 32.
M interface 33 and ROM interface 34
Is included. When there is a request to access the common RAM 14 of each controller, the bus interface 31 is connected to the RAM interface 33 using the bus IF / RAM input / output signal 36. Transmission interface circuit 3
In 2, the operation setting signal from the bus interface 31 is received through the transmission IF / bus IF input / output signal 35 to start the transmission operation. In this case, the transmission interface circuit 3
2 requests the RAM interface 33 to read setting data, and obtains the data via the transmission IF / RAM input / output signal 38. Based on the result, the transmission line transmission signal 16 is output and the transmission line reception signal 17 is input. In the RAM interface 33, the transmission IF / R
The shared RAM 14 receives two types of requests of the AM input / output signal 38 and the bus IF / RAM input / output signal 36, selects one of them, and outputs the selected signal via the RAM input / output line 21 signal.
Input and output data to and from.

The bus interface circuit 31 issues a ROM read request to the ROM interface 34 at the time of initialization to read the model setting data, the transmission operation setting data, and the input / output operation setting data via the bus IF / ROM input / output signal 39. The contents of the above are transferred to the common RAM 14.

When the setting data is changed in the master controller 1 to which the host CPU 11 is connected, the bus interface circuit 31 issues a write request to the ROM interface 34 in response to a request from the host CPU 11, and then to the setting ROM 18. All setting data is written. In the case of a controller such as the hall controller 3 which is not connected to the host CPU 11, data is written to the setting ROM 18 according to the write command included in the transmission data from the master controller 1. The device number information 27 is input to both the bus interface 31 and the transmission interface circuit 32.

<FIG. 7: Detailed Configuration Diagram of Transmission Interface Circuit> FIG. 7 is a detailed configuration diagram of the transmission interface circuit 32 in FIG.

On the basis of the operation setting signal included in the transmission IF / bus input / output signal, the setting reading operation circuit 60 determines the master operation or the slave operation and starts the transmission operation. In either case, the bus interface 31 to RAM
Read data 58 Signal is taken out and transmission / reception setting data 5
It is taken into the data transmission / reception control unit 42 as 6.

In the case of the master operation executed by the master controller 1, the start address in the data is used as the transmission address based on this data and written in the address register 47, which is used as the address transmission / reception data 57 in RA.
It is sent to the M interface 33. The transmission data creation circuit 45 in the data transmission / reception control unit 42 receives a command from the transmission / reception control circuit 43, creates serial transmission data 53, and passes it to the serial data transmission / reception circuit 41. Further, the transmission / reception control circuit 43 outputs the transmission request signal 51 to the serial data transmission / reception circuit 41 for serial transmission. The serial transmission / reception circuit 41 receives the serial transmission data 53
Is converted into a serial signal and output as a line transmission signal 16.

Next, when the transmission setting contents are data transmission,
The data input / output operation circuit 50 takes out the transmission data from the common RAM 14 as the RAM reading data 58 signal and passes it as the transmission data 59 to the transmission data creating circuit 45. Upon receiving an instruction from the transmission / reception control circuit 43, the serial transmission data 53 is created, and the serial transmission data 53 is created. It is passed to the data transmission / reception circuit 41.
Further, the transmission / reception control circuit 43 outputs the transmission request signal 51 to the serial data transmission / reception circuit 41 for serial transmission.
The serial data transmitting / receiving circuit 41 serially converts the received serial transmission data 53 and outputs it as the line transmission signal 16.

When the transmission setting contents are data reception, the transmission / reception control circuit 43 sends a reception request signal 52 to the serial data transmission / reception circuit 41. Serial data transceiver circuit 4
In 1, the received data in the line reception signal 17 is converted from serial to parallel and output as serial received data 54. This is written in the data register 46 according to a command from the transmission / reception control circuit 43.

In the data input / output operation circuit 50, when data is received, RA is transmitted on the transmission IF / RAM input / output signal 36.
The M write request is set and the common RAM 14 is also saved. During reception, the abnormality detection unit 44 also checks the read data and the read-out time-out check, and aborts the transmission processing when an abnormality occurs and creates an abnormal data storage processing command.

When the above address transmission or data transmission / reception is completed, the setting read operation circuit 60 increments the value of the address register 47 by one and processes the data of the next address. When the address value becomes the end address value in the setting data, the setting reading operation circuit 60 performs the operation of reading the next setting data and continues the transmission operation.

In the case of the hall controller 3, the car controller 4, and the information transfer controller 6, the transmission interface circuit 32 performs a slave operation. In the case of the slave operation, after the transmission / reception setting data 56 is read, it waits for the address reception. If the read data is an address, the address reception data is stored in the address register 47 and sent to the address match detection circuit 48 to determine whether it is within the address range of the transmission / reception setting data. The device number information 27 is input to the address match detection circuit 48, and is used as address match detection information in the case of the operation of the hall controller 3.

(Operation of Device of Embodiment) The operation of the above-described embodiment will be described below.

<Transmission Operation Contents and Setting Table> FIG. 8 shows a time chart during the transmission operation. T1 in FIG. 8 indicates a master talker transmission operation, which is used when information is transmitted from the master station to the slave station. The master station first transmits the address, and after the address transmission is completed, the data is subsequently transmitted. Then wait for a response from the slave station. The slave station waits for address reception, and when the address is assigned to itself, receives the transmitted data and outputs it to the external display means or the like. After that, the reception response is returned. When the master station does not receive a response, it determines that an error has occurred and resends the data.

T2 in FIG. 8 shows a master listener transmission operation, which is used when transmitting information from the slave station to the master station. The address is transmitted from the master station, and after the transmission is completed, the slave station continuously waits for data reception. The slave station waits for address reception, and if the address is assigned to itself, externally performs switch data input or the like to transmit data. The master station receives the sent data and saves it as data.

FIG. 9 shows a transmission setting table used in each controller. This transmission setting table is No. It has transmission tables 1 to n, and each table includes a start address, an end address, and a transmission type. The transmission type consists of "talker", "listener", "setting / broadcast", and "end of table". In the "Setting / Broadcast" setting, the master talker operation is performed. In the case of the "end table" setting, the transmission operation is not executed, and the transmission operation is executed again from the head table after a certain time has elapsed.

FIG. 10 shows an input / output operation setting table used in each slave operation controller. This input / output operation setting table is No. Has a setting table of 1 to m,
Each table includes a processing type, a data type, and a data address. The processing types include “read”, “write”, “AND process”, “macro process”, “table end”, and the like. “Read” indicates that the data is read from the processing data address and is stored in the internal buffer, and “write” indicates that the data in the internal buffer is written to the processing data address. "AND processing" indicates that data is read from the data address, AND processing is performed with the data in the internal buffer, and the result is returned to the internal buffer. In the "macro processing", further, the input / output operation described in the macro operation table set in the setting ROM 18 is executed. In the case of the "end table" setting, the input / output operation is not executed, and the input / output operation is executed again from the first table after a certain time has elapsed. The data type indicates the data type of the data fetch and write destination, and indicates the data type of the common RAM 14, the setting ROM 18, and the local bus 20.

<Transmission Operation by Master Controller> When the model designation data in the setting ROM 18 area is the master controller 1, the operation of the master controller 1 is started. FIG. 11 shows an operation flowchart of the master station during the transmission operation, and the signal flow will be described with reference to the transmission control circuit 12 (FIG. 6) and the transmission interface circuit 32 (FIG. 7).

On the basis of the operation setting signal on the transmission IF / RAM input / output signal 38, the setting reading operation circuit 60 determines the master operation or the slave operation and starts the transmission operation.
Here, the initialization process is started (step S1), and following the table reading (step S2), unless it is completed (step S3), first, the bus interface 31 is started.
A RAM read data 58 signal is taken out from and is taken as transmission / reception setting data 56. Using the start address in the setting data as the transmission address, the address register 47
(Step S4), and this is set as the address transmission / reception data 57. The transmission data creation circuit 45 receives a command from the transmission / reception control circuit 43, creates serial transmission data 53, and passes it to the serial data transmission / reception circuit 41. Further, the transmission / reception control circuit 43 outputs the transmission request signal 51 to the serial data transmission / reception circuit 41 for serial transmission (step S5). The serial data transmission / reception circuit 41 serially converts the received serial transmission data 53 and outputs it as the transmission line transmission signal 16. Here, the data transmission / reception time monitoring timer in the abnormality detection unit 44 is set (step S6).

Next, it is confirmed whether or not it is a transmission (step S
7) If it is transmission, it is determined that the transmission setting content is "master talker", and talker processing is performed (step S8). That is, the data input / output operation circuit 50 takes out the transmission data from the common RAM 14 as the RAM reading data 58 signal and passes it as the transmission data 59 to the transmission data creating circuit 45, and at the same time, receives the command from the transmission / reception control circuit 43 to obtain the serial transmission data 53. Created serial data transceiver circuit 4
Pass to 1. In the transmission / reception control circuit 43, the transmission request signal 5
1 is output to the serial data transmission / reception circuit 41 to perform serial transmission. The serial data transmission / reception circuit 41 outputs the received serial transmission data 53 as the transmission line transmission signal 16.

After the talker process, it is checked whether or not it is a broadcast (step S9), and if it is not a broadcast, a response confirmation process is performed (step S10). When the above address transmission / data transmission / reception is completed, the setting read operation circuit 60 waits for the data transmission / reception timer time to elapse (step S12).
Here, during reception, the abnormality detection unit 44 checks the read data and checks the timeout of the read time, aborts the transmission processing when an abnormality occurs, and creates an abnormal data storage processing command. The timeout time can be set in the register inside the bus interface and can be changed according to the system. When an address is received during the operation of the data reception timer, the abnormality is notified as a transmission type abnormality. These pieces of abnormality information are sent to the bus interface circuit, and the presence / absence and the number of occurrences of each abnormality type are stored in the abnormality occurrence number counter in the bus interface circuit. If it is broadcast in step S9, step S
It skips to step S12 without executing 10.

After the lapse of time in step S12, an address check is performed to see if it is the end address (step S1).
3) If it is not the end address, the value of the address register is incremented by 1 (step S14), and the process returns to step S5 to process the data of the next address. Step S1
When it is detected in 3 that the address value has reached the end address value in the setting data, the process returns to step S2, the setting reading operation circuit 60 performs the operation of reading the next setting data, and the transmission operation after step SS4. Continue.

If it is not transmitted in step S7, that is, if the transmission setting content is "master listener" setting, listener processing (step S11) is performed. That is, the transmission / reception control circuit 43 sends the reception request signal 52 to the serial data transmission / reception circuit 41. The serial data transmission / reception circuit 41 performs serial / parallel conversion on the reception data in the transmission line reception signal 17 and extracts it as serial reception data 54. This is written in the data register 46 by a command from the transmission / reception control circuit 43. When the data input / output operation circuit 50 receives data, the transmission IF / RAM input / output signal 38
A RAM write request is set on the above, and saving in the common RAM 14 is executed. After this, the process proceeds to the step of waiting for the timer to end in step S12 and the following steps.

The setting table ends (step S2).
S3) and wait for the scan time (step S1
5) After a lapse of time, the process returns to step S1 and the leading R again.
The AM is read and the transmission input / output processing of the next cycle is performed.

<Slave Controller Transmission Operation> Next, the transmission operation of the slave controller (hall controller 3, car controller 4, information transfer controller 6) in operation will be described with reference to the flowchart of FIG.

In the case of the slave operation, assuming that the transmission information has already been transferred from the setting ROM 18 to the common RAM 14, the initialization processing is first performed (step S21), and the transmission table is read from the first one. afterwards,
The transmission / reception setting data 56 is read (step S22),
Waiting for address reception (step S23). If the read data is an address, the address reception data is stored in the address register 47, and the address match detection circuit 48
To determine whether it is within the address range of the transmission / reception setting data (step S24). If it is within the range, it is judged whether the data is a reply (talker) or the data is received (listener) according to the set data type (step S25), and the listener process (S27) or talker process (step S28) is performed according to the judgment result. I do. In the case of "master listener operation" (step S27), the data is read from the common RAM 14 and is sent as transmission data to the serial data transmission / reception circuit 41 to perform data transmission. In the case of the "master talker operation" (step S28), the reception is awaited, and after the data reception is completed, the data is written in the common RAM 14.

If the receiving address is larger than the set maximum value, the next setting table is read (step S2).
6). If the table is the last, the top table is read. Address switch information is input in addition to the address value indicated by the table value, address information is created, and a transmission response is made.

<Hall Controller Operation> Next, the operation of the hall controller 3 will be described with reference to the hall controller configuration diagram of FIG.

Transmission control circuit 12 of the hall controller 3
Is connected to the setting ROM 18 via the ROM input / output line 19, and at the time of initialization, the setting data is fetched from the setting ROM 18 and stored in the common RAM 14. Next, the transmission control circuit 12 performs the slave transmission operation described above, and the common RA
The transmission input / output data is read / written to / from M14. It also receives address information from the addressing switch 23 and transmits a response to an address different from the transmission setting table.

The transmission control circuit 12 is connected to the push button display LED 22 via the local bus 20, and periodically transmits / receives a signal to / from the data in the common RAM 14 according to the contents of the transfer operation setting table described above. Performs input / output operation. In this embodiment, input / output transfer is started when data of address 0 is received.

Next, the backup operation of the hall controller 3 will be described.

The transmission control circuit 12 is also connected to the shared IO interface 26 via the local bus 20 to input / output data, and the backup operation is executed when the partner system fails. When it is determined that a hall controller 3 has failed due to a transmission error in the upper CPU of the master controller 1, the master controller 1 newly accesses the hall controller 3 having the common IO to transmit the common IO. The changed values of the setting table and the information transfer operation setting table are sent to the common RAM.
It is stored in 14. After that, the write command data is sent from the master controller 1, and the transmission control circuit 12 that has received the contents changes the setting data stored in the common RAM 14 and writes the setting data in the setting ROM 18. By this operation, the backup operation of the hall controller 3 is performed.

<Car Controller Operation> The operation of the car controller 4 will be described with reference to the car controller configuration diagram shown in FIG.

The transmission control circuit 12 of the car controller 4 is first connected to the setting ROM 18 via the ROM input / output line 19, takes out data from the setting ROM 18 at initialization, and stores the transmission setting data and the transfer processing setting data in the common RAM 14. save. At this time, the device number information 27 is received from the device number designation switch 28, and the setting ROM 1
The position of the setting table data extracted from 8 is changed. Next, the transmission control circuit 12 performs the slave transmission operation described above to read / write transmission input / output data from / to the common RAM 14.

The transmission control circuit 12 is connected to the push button display LED 22 via the local bus 20, and periodically inputs / outputs data to / from the common RAM 14 according to the contents of the transfer operation setting table described above. I do. In this embodiment, input / output transfer is started when data of address 0 is received.

The car controller 4 includes a process of incrementing and returning the data of a certain address by 1 to confirm that the operation is normally performed. In the present embodiment, this process is performed by using the macro operation function. Realize the action.

<Operation of Information Transfer Controller> The operation of the information transfer controller 6 shown in FIG. 5 will be described.

Transmission control circuit 1 of information transfer controller 6
Reference numeral 2 is first connected to the setting ROM 18 via the ROM input / output line 19, takes out data from the setting ROM 18 at the time of initialization, and stores the transmission setting data and the transfer processing setting data in the common RAM 14. Next, the transmission control circuit 12 performs the slave transmission operation described above, and the common RAM 14
Read / write transmission input / output data to / from. The two sets of transmission control circuits 12 are connected to each other using a local bus, and regularly transfer information to be mutually transmitted using the transfer processing information stored in the setting ROM 14.

(Effect of Embodiment) The effect obtained by the embodiment of the present invention will be described below.

<Transmission control setting table in ROM element>
The transmission control circuit of the present embodiment can read R even if the power is turned off, as described for each controller operation.
The OM element is provided, and the transmission control setting data is stored in the ROM element. By changing this data, it is possible to easily change the content of the transmission processing. It is possible to provide an inexpensive and variable operation transmission system.

<On-Board Change of ROM Content> According to the transmission control circuit of the present embodiment, as described in the master controller operation, the ROM element which can be read even if the power is turned off is provided, and the transmission control is performed in the ROM element. Having the setting data, the contents of the transmission process can be easily changed by changing the data, and the means for changing the ROM contents onboard is provided, and the transmission control setting table in the ROM element is stored in the ROM element. It is possible to easily change the contents of the transmission process by changing without changing itself, and it is possible to provide a high-speed, low-cost operation-variable transmission system with a simple configuration.

<ROM content on-board change by upper CPU setting> With the above configuration and operation, by using the transmission control circuit of this embodiment, as described in the master controller operation, even if the power is turned off. It is equipped with a readable ROM element, has transmission control setting data in the ROM element, and by changing this data,
The ROM is provided with means for easily changing the contents of the transmission process and for changing the contents of the ROM onboard.
By changing the transmission control setting table in the device without changing the ROM device itself, it is possible to easily change the content of the transmission processing. Further, the interface circuit with the upper CPU is provided, and the ROM device is set by the upper CPU. The transmission control setting table in the inside can be changed without changing the ROM element itself, and it is possible to change the contents of the transmission process more easily. Can be provided.

<Change of ROM Content by Transmission Function> According to the transmission control circuit having the above configuration, the ROM element which can be read even if the power is turned off is provided, and the transmission control setting data is held in the ROM element and this data can be changed. The transmission processing contents can be changed easily by changing the transmission control setting table in the ROM element according to the transmission contents from the master station without changing the ROM element itself.
It is possible to easily change the transmission processing content. Therefore, it is possible to provide a transmission system having a simple configuration, high speed, low cost, and capable of easily changing the operation content.

<Input / output operation information inside ROM> By virtue of the above configuration and operation, the transmission control circuit according to the present embodiment can read data even if the power supply is turned off, as described for the operation of each slave controller. A ROM element is provided and transmission control setting data is stored in the ROM element. By changing this data, the contents of transmission processing can be easily changed, and the input / output operation setting information in addition to the transmission control information is included in the ROM content. By holding this information and changing this information, the input / output processing operation can be easily changed. Therefore, system transmission efficiency can be improved and various functions can be supported without taking a complicated configuration.

<Backup operation at the time of failure> A ROM element that can be read even if the power is turned off is provided, and transmission control setting data is contained in the ROM element. By changing this data, the contents of transmission processing can be easily changed. Yes, and R
The OM contents have input / output operation setting information in addition to the transmission control information, and by changing this information, the input / output processing operation can be easily changed. Furthermore, the transmission contents in the ROM element can be changed according to the transmission contents from the master station. RO control setting table
In addition to making it possible to easily change the transmission processing contents by changing the M element itself without changing it,
The input / output circuit is shared with other transmission control circuits, and the transmission control information and the input / output information in the ROM element are changed according to the transmission contents from the master controller. Accordingly, when a failure occurs in a certain input / output control circuit, another control circuit sharing the input / output performs the input / output processing instead, and the failure recovery can be promptly performed. Therefore, the system transmission efficiency is increased,
And it is possible to avoid taking a complicated configuration,
Further, it becomes possible to take an operation backup configuration at the time of failure.

<Registration of model information in ROM> A ROM element that can be read even when the power is turned off is provided, and transmission control setting data is held in the ROM element. By changing this data, the contents of transmission processing can be easily changed. And RO
The contents of the M element have input / output operation setting information in addition to the transmission control information, and the input / output processing operation can be easily changed by changing this information. Further, by providing operation model information in addition to the I / O control information and changing the interpretation method of the I / O control according to this model information, various I / O operations can be performed. Therefore, the system transmission efficiency can be improved without taking a complicated configuration, and various controller functions can be executed under the same transmission control circuit configuration.

<Macro operation setting in ROM> According to the transmission control circuit of the present embodiment, as described for the car controller, a ROM element that can be read even if the power is turned off is provided, and the transmission control setting is made in the ROM element. Have data,
By changing this data, the contents of the transmission process can be easily changed, and the contents of the ROM have the input / output operation setting information in addition to the transmission control information. By changing this information, the input / output operation can be easily performed. It is possible to change. Further, by having the macro operation setting data in addition to the input / output control information, it becomes possible to define a more complicated operation with a short description. Therefore, the system transmission efficiency can be improved without taking a complicated configuration, and the controller function that performs a complicated operation can be executed under the same transmission control circuit configuration.

<Information Transfer Between Two Systems> According to the transmission control circuit of the present embodiment, as described in the information transfer controller, the ROM element which can be read even if the power is turned off is provided, and the transmission control setting is made in the ROM element. By holding the data, the contents of the transmission process can be easily changed by changing the data, and the input / output operation setting information in addition to the transmission control information is contained in the contents of the ROM element. By changing this information, the input / output can be changed. The processing operation can be easily changed. Furthermore, by connecting to two transmission systems and describing data transfer between the systems in the input / output control setting table, it is possible to transfer information between the systems. Therefore, the system transmission efficiency can be improved without taking a complicated configuration, and information can be easily exchanged between different systems.

<Addition of External Switch> According to the transmission control circuit of this embodiment, the RO that can be read even if the power is turned off.
The ROM element is provided with M element, and the transmission control setting data can be easily changed by changing the data in the ROM element. The transmission control information is given to the external switch in addition to the information in the ROM setting. By providing the function of responding to the addresses that are sent, the operation can be set in a wide range. Therefore, the system transmission efficiency can be improved without taking a complicated configuration.

(Other Embodiments) In this embodiment, the contents of the process type in the input / output operation setting table of FIG. 10 are "read", "write", "AND process", "macro process", and Although the "end of table" is illustrated, other operation instructions such as "addition processing", "subtraction processing", and "repetition processing" can be incorporated and used.

Further, although the normal response process of the car controller is shown as an example of the macro process, of course, other complicated arithmetic process such as scale conversion process can be carried out.

[0085]

As described above, according to the present invention,
A transmission control device used in a system for cyclically transmitting elevator control information is provided with a ROM element that can be read even if the power is turned off.
By having transmission control setting data in the M element and changing this data, it is possible to easily change the transmission processing content. As a result, system transmission efficiency can be improved without taking a complicated configuration.

[Brief description of drawings]

FIG. 1 is a block diagram showing an overall configuration of an elevator transmission control system according to an embodiment of the present invention.

2 is a block diagram showing an internal configuration of a master controller in the apparatus shown in FIG.

3 is a block diagram showing an internal configuration of a hall controller in the apparatus of FIG.

4 is a block diagram showing an internal configuration of a car controller in the apparatus of FIG.

5 is a block diagram showing an internal configuration of an information transfer controller in the apparatus of FIG.

6 is a block diagram showing an internal configuration of a transmission control circuit of each controller in the apparatus of FIG.

7 is a block diagram showing an internal configuration of a transmission interface circuit in the device of FIG.

FIG. 8 is a time chart explaining a transmission operation in the present invention.

FIG. 9 is an explanatory diagram of a transmission operation setting table according to the present invention.

FIG. 10 is an explanatory diagram of an input / output operation setting table according to the present invention.

FIG. 11 is a flowchart illustrating a master transmission operation according to the present invention.

FIG. 12 is a flowchart illustrating a slave transmission operation according to the present invention.

[Explanation of symbols]

1 Master controller 3 Hall controller 4 car controller 5 transmission lines 6 Information transfer controller 7 Hall controller common input / output signal 11 Host CPU 12 Transmission control circuit 13 RS485 interface 14 Common RAM 15 Bus control signal 16 Transmission line transmission signal 17 Transmission line reception signal 18 Setting ROM 19 ROM input / output line 20 local bus 21 RAM input / output line 22 Push button display LED 23 Addressing switch 24 Shared output signal 25 Shared input signal 26 Shared IO interface 27 Device number information 28 Device number designation switch 31 bus interface 32 Transmission interface circuit 33 RAM interface 34 ROM interface 35 Transmission IF / Bus IF input / output signal 36 bus IF / RAM input / output signal 38 Transmission IF / RAM input / output signal 39 Bus IF / ROM input / output signal 41 Serial data transceiver circuit 42 Data transmission / reception control unit 43 Transmission / reception control circuit 44 Abnormality detector 45 Transmission data creation circuit 46 data register 47 address register 48 Address match detection circuit 50 Data input / output operation circuit 51 Transmission request signal 52 Reception request signal 53 Serial transmission data 54 Serial reception data 55 Received data 56 Send / receive setting data 57 address send / receive data 58 RAM read data 59 Transmission data 60 Setting read operation circuit

Claims (10)

[Claims] 1. An elevator information transmission control device for cyclically serially transmitting elevator control information between a master station and a slave station, wherein transmission control setting data is stored as a transmission control setting table, and a power source is An information transmission control device for an elevator, comprising: a ROM element that can be read even if it disappears; and a table changing unit that changes the transmission control setting table to change the transmission processing content. 2. The information transmission control device for an elevator according to claim 1, further comprising input means for changing the contents of said ROM element onboard, and said table changing means is said transmission in said ROM element. Control setting table,
An information transmission control device for an elevator, characterized in that the contents of the transmission process are changed by making a change via the input means. 3. The elevator information transmission control device according to claim 2, further comprising an interface with an upper CPU, wherein the table changing means stores the transmission control setting table in the ROM element from the upper CPU. The information transmission control device for an elevator, characterized in that the transmission processing content is changed by changing the setting via the interface according to the setting. 4. The information transmission control device for an elevator according to claim 1, wherein the table changing means changes the transmission control setting table in the ROM element according to the transmission content from the master station to perform the transmission processing. An information transmission control device for an elevator, characterized by changing the contents. 5. The elevator information transmission control device according to claim 1, wherein the contents of said ROM element have input / output operation setting information in addition to transmission control information, and said table changing means has said input / output operation. An elevator information transmission control device characterized in that input / output processing operation is changed by changing setting information. 6. The elevator information transmission control device according to claim 4 or 5, further comprising an input / output circuit shared with another information transmission control device, wherein the table changing means responds to a transmission content from the master station. By changing at least one of the transmission control information and the input / output information in the ROM element, another input / output control circuit sharing the input / output when a failure occurs in another input / output control circuit An information transmission control device for an elevator, characterized in that it substitutes the input / output processing of a circuit. 7. The elevator information transmission control device according to claim 5, wherein the content of said ROM element has operating model information in addition to the input / output control information, and the input / output control information is controlled according to this operating model information. An elevator information transmission control device characterized by changing an interpretation method. 8. The elevator information transmission control device according to claim 5, wherein the contents of the ROM element have macro operation setting data in addition to the input / output control information. Transmission control device. 9. An elevator information transmission control device according to claim 5, wherein the inter-system data transfer is connected to two transmission systems and enables information transfer between the systems in the input / output control setting table. An information transmission control device for an elevator, characterized by including a description. 10. The elevator information transmission control device according to claim 1, wherein the transmission control information has a function of responding to an address given to an external switch in addition to the setting information in the ROM element. An information transmission control device for an elevator characterized by being provided.