JP2793258B2 - Data setting method for positioning control device - Google Patents

Description

The present invention relates to a data setting method of a positioning control device used in combination with a sequencer.

[Related Art] In recent years, a sequencer starting from a relay sequence as a base has become sophisticated, and positioning control, which has conventionally used a dedicated program language with a dedicated device, has been incorporated as a function of the sequencer. In particular, an arithmetic unit that configures the arithmetic unit of the sequencer on a board called a motherboard,
An increasing number of types of I / O units and special units are inserted to form a sequencer that meets the user's specifications. Among them, a positioning control unit used as a special unit constitutes a positioning control device. Since this unit is connected to the arithmetic unit by the marza board, data such as the amount of movement can be handled in a large amount at high speed in addition to the conventional ON / OFF contact information.

FIG. 6 shows the configuration of a conventional positioning control unit 1. This positioning control unit 1 supplies a system memory to a microprocessor of an operation unit 2 of a sequencer via an internal bus 3 on a motherboard and a bus switching circuit 4. 5 buses. The microprocessor 6 in the position control unit 1 is connected to the bus of the system memory 5 through the bus 7 and the bus switching circuit 4 and is connected to the communication circuit 8 so that data can be exchanged with the teaching device 9. It is connected to the teaching device 9 via the section 10.

[Problem to be Solved by the Invention] In the conventional example of FIG. 6, since the bus switching circuit 4 is used, the configuration is complicated, the space cannot be reduced in size, and the entire system memory 5 is operated by a sequencer. Since it is rewritten by the unit 2, the positioning control unit 1
There were problems such as the need for a circuit that inhibits writing to the OS part.

Therefore, without using the bus switching circuit 4, the positioning control unit 1 has two buses, and uses a shared memory 11 that is readable and writable by the microprocessor of the arithmetic unit 2 and the microprocessor 6 of the positioning control unit 1.
Although the positioning control unit 1 as shown in the figure has been proposed, in this conventional example, since there is no large-capacity element in the shared memory 11, a large amount of data cannot be set from the operation unit 2 side of the sequencer. There was a problem.

The invention according to claim 1 has been made in view of the above problems, and its purpose is to eliminate the need for complicated bus switching and to be unaffected by the absence of a large-capacity shared memory. It is another object of the present invention to provide a data setting method for a positioning control device using a shared memory capable of setting a large amount of data from a sequencer.

Another object of the present invention is to provide a data setting method for a positioning control device in which processing in the positioning control device is simple.

[Means for Solving the Problems] According to the invention described in claim 1, an address signal, a data signal, and a control signal are connected to an arithmetic unit of a sequencer via an internal bus, and positioning is performed according to set positioning control data. The positioning control device includes a microprocessor, a shared memory connected to the arithmetic unit via the internal bus, and connected to the microprocessor via another bus, and a system memory. And a window number area, and an old window number area and a positioning control data area are set in the system memory.

According to a second aspect of the present invention, a positioning control device for connecting an address signal, a data signal, and a control signal to an arithmetic device of a sequencer via an internal bus and performing positioning according to set positioning control data includes a microprocessor. A shared memory connected to the arithmetic unit via the internal bus and connected to a microprocessor via another bus, and a system memory, and the shared memory includes a data area for positioning control, a window number area, and a parameter area. The parameter area and the data area for positioning control are set in the system memory.

[Operation] According to the first aspect of the present invention, the window number data from the arithmetic unit is written into the window number area of the shared memory based on the conditional contact information from the arithmetic unit. Based on the incoming window switching contact information, the positioning control data is saved from the positioning memory data area of the shared memory to the system memory positioning control data area designated by the window number data of the old window number area of the system memory. ,
The window number data written in the window number area of the shared memory is evacuated to the old window number area of the system memory, and the positioning control data is transferred from the positioning memory data area of the system memory corresponding to the window number data. The data is transferred to the positioning control data area, and after this transfer, the window control completion contact information is sent from the positioning control device to the arithmetic device, and the arithmetic device releases the holding of the window switching contact information based on the window change completion contact information. At the same time, the positioning control data written in the positioning control data area of the shared memory is read and written by the data transfer command to the shared memory in the sequence command.

According to the second aspect of the present invention, the window number data from the arithmetic unit is written in the window number area of the shared memory based on the conditional contact information from the arithmetic unit, and the window switching contact sent from the arithmetic unit after this writing. Based on the information, the positioning control data is transferred from the positioning control data area specified by the window number data to the shared memory, and the parameters of the system memory parameter area are transferred to the shared memory parameter area. The positioning control device sends the window switching completion contact information to the arithmetic device. At the time of reading, the arithmetic device releases the holding of the window switching contact information based on the window switching completion contact information and shares the shared information in the sequence instruction. The positioning control data written in the data area of the positioning control of the shared memory by the data transfer instruction to the memory is read out, and at the time of writing, the data is written from the arithmetic unit by using the data transfer instruction to the shared memory based on the window switching completion contact information. The data is transferred, and after this transfer, the data write contact information is given from the arithmetic unit to the positioning control device, and the positioning control data and the parameter of the parameter area of the positioning control of the shared memory are transferred to the positioning area of the system memory. The data is transferred to the parameter area, and the data write completion contact information is sent from the positioning control device to the arithmetic unit.

Thus, the invention of claim 1 can set a larger amount of data than the sequencer while simplifying the circuit configuration using a shared memory having a small capacity.

Further, the invention according to claim 2 does not complicate the processing inside the positioning control device, and can set a larger amount of data than the sequencer without mixing old and new data.

EXAMPLES The present invention will be described below with reference to examples.

The configuration of the positioning control unit 1 used in the present invention is the seventh
None the same configuration as FIG configuration, three areas of claim 1 area A ₂ and the area A ₃ of the window number of the positioning control data and area A ₁ of the positioning parameters in the shared memory 11 in the embodiment of the present invention described Are set as shown in FIG. 1, and the area of the positioning control data is stored in the system memory 5.
It is set and the system area B ₂ that is storing the OS and positioning B _1.

Here, in the computer field, there is generally a method of switching a memory area using a window. In this case, a bus is managed by one microprocessor,
Read / write timing is also specified by the memory element,
Switching is usually automatic by address, but is not applicable to windows between two independent microprocessors.

Here the window number area A ₃ in the shared memory 11 provided in the present invention method, also the old window number area B ₂₁ provided in the system area B ₂ of system memory 5, separately from the operation unit 2 of the sequencer, the positioning control from this Application is possible by providing window switching contact information (output from the operation unit 2 of the sequencer to the positioning control unit 1) and window switching completion contact information to the contact information passed to and from the unit 1.

When Thus now assumed Old window number in to the system area of the data area B ₁ of the memory 5 (for example, data number 31 to 40) a is switched to the area A ₂ of the positioning control data of the shared memory 11 in the "3" The data actually used in the positioning control at this time is indicated by solid arrows in the figure. Since the amount of the positioning parameter is small, the shared memory 11 is used and switching is not performed.

Here, for example, when it becomes necessary to read and write the data number "55", when the conditional contact is turned on as shown in FIG. 2A, the shared memory is used by using the data transfer instruction to the shared memory 11 in the sequence instruction. To area A ₃ of 11 window number For example, window number data "5"
Is transferred from the operation unit 2 side of the sequencer as shown in FIG. 2 (b). When this transfer is completed, the positioning control unit 1 starts internal processing as shown in FIG. 2D when the window switching contact is turned on as shown in FIG. Data area specified by old window number in system memory 5
The window number “5” written in the area A ₃ of the window number of the shared memory 11 is saved to the area (data numbers 31 to 40) b in B ₁ and the system memory 5
The retracted to the Old window number area B _21, and further transfers the data number 51 to 55 of the system memory 5 according to the window number "5" set in the data area A ₂ of the shared memory 11, the data that is actually used The control is changed as indicated by the dashed arrow to turn on the window switching completion contact (output from the positioning control unit 1 to the operation unit 2 of the sequencer) as shown in FIG. 2 (e). On the operation unit 2 side of the sequencer, When the window switching completion contact is turned on, the holding of the window switching contact is released, and the shared memory 11 in the sequence instruction is released.
The data number "55" is read and written by using a data transfer instruction to write data as shown in FIG. 2 (f).

As described above, it is possible to read and write all data in the system memory 5 of the positioning control unit 1 from the arithmetic unit 2 of the sequencer, and to transfer type change data from a host computer in a system using a sequencer network. Become.

By the way, in the method of the embodiment shown in FIG. 1, it is necessary to save the old data and the window number and transfer the new data in the positioning control unit 1, and the control of the data actually used every time the area is switched is controlled. Instead, the processing inside the positioning control unit 1 becomes complicated. It is also possible to save only the old data, but since new data is not read out, new and old data that set only a part of the shared memory 11 to new data are mixed, so all data must always be rewritten. No.

An invention of was made in view of this point according to claim 2, wherein, in the embodiment sets a window number area A ₃ that specifies the shared memory 11 as shown in FIG. 3, the system memory 5 the parameter area B ₃ is provided, further a window switching contact information to the contact information separately, and the window switching complete contact information, and a data writing contact information (output from the positioning control unit 1 to the operation unit 2 of the sequencer) is provided, and the sequence language In combination, the area A _{2 for} positioning data and the area A ₁ for positioning parameters set in the shared memory 11 are used as a buffer memory of the system memory 5.

Thus, the positioning control data area of the shared memory 11 is now
Area of positioning control data of the system memory 5 to A ₂
Of B ₁ area a (e.g., data number "31" - "40")
Is written, the positioning control data actually used in the positioning control at this time is data indicated by a solid arrow in the drawing. Positioning parameters the values written into the parameter area B ₃ of the system memory 5 is used. Here, if the need to read the data number "55" in the area b of the data area B ₁ is generated,
That is, when the conditional contact is turned on as shown in FIG. 4 (a), the window number area of the shared memory 11 is
Written by transferring the "5" as the data to A ₃ as shown in FIG. 4 (b). When the transfer writing is completed, the window switching contact is turned on and held as shown in FIG. 4 (c). Positioning control unit 1 on the window switching contacts initiates an internal process, shared and parameters Parameter Area B ₃ of the system memory 5, data of "51" - "60" in the specified area b in the window number memory Transfer to 11 and turn on the window switching completion contact. The sequencer releases the holding of the window switching contact by turning on the window switching completion contact, and reads the value of the data number “55” using the data transfer instruction to the shared memory 11 in the sequence instruction. At this time, the data actually used in the positioning control is the same as before as indicated by the dashed arrow in FIG.

When writing the data number "55", the same operation as described above is performed, and when the window switching completion contact shown in FIG. As shown, the value of the data number "55" is transferred and written, and after the transfer, the data write contact is turned on as shown in FIG. 5 (g). When this switch is turned on, the positioning control data and the positioning parameters in the shared memory 11 are transferred to the designated system memory 5 in the internal processing of the positioning control unit 1 to update the contents, and then the data write completion contact is turned on.

As described above, it is possible to rewrite all data in the system memory 5 including rewriting a part of the data in the shared memory 11 without performing a complicated hardware configuration and internal processing.
In a system using a sequence network, it is possible to transfer product change data from a host computer.

According to the first aspect of the present invention, the window number data from the arithmetic unit is written into the window number area of the shared memory based on the conditional contact information from the arithmetic unit. Based on the window switching contact information sent from the arithmetic unit,
The position control data is saved from the position control data area of the shared memory to the position control data area of the system memory designated by the window number data of the old window number area of the system memory. Saves the window number data written into the old window number area of the system memory and transfers the positioning control data from the positioning control data area of the system memory corresponding to the window number data to the positioning control data area of the shared memory. After the transfer, the positioning control device sends window switching completion contact information to the arithmetic device, and the arithmetic device sends the window switching completion information based on the window switching completion contact information. Since the switching contact information is released and the positioning control data written in the positioning control data area of the shared memory is read and written by the data transfer command to the shared memory in the sequence command, complicated bus switching is unnecessary. Moreover, there is an effect that a large amount of data can be set from the sequencer side without being affected by the absence of a large-capacity shared memory.

According to a second aspect of the present invention, a positioning control device for connecting an address signal, a data signal, and a control signal to an arithmetic device of a sequencer via an internal bus and performing positioning according to set positioning control data includes a microprocessor. A shared memory connected to the arithmetic unit via the internal bus and connected to a microprocessor via another bus, and a system memory, and the shared memory includes a data area for positioning control, a window number area, and a parameter area. Setting, setting a parameter area and a data area for positioning control in the system memory, and writing the window number data from the arithmetic unit to the window number area of the shared memory based on the condition contact information from the arithmetic unit. From the above computing device Based on the received window switching contact information, the positioning control data is transferred from the positioning control data area specified by the window number data to the shared memory, and the parameters of the system memory parameter area are transferred to the shared memory parameter area. After the transfer, the positioning control device sends the window switching completion contact information to the arithmetic device. At the time of reading, the arithmetic device releases the holding of the window switching contact information based on the window switching completion contact information, and outputs the sequence instruction. When the positioning control data written to the positioning control data area of the shared memory by the data transfer instruction to the shared memory is read and written, the data is written to the shared memory based on the window switching completion contact information. The data to be written is transferred from the arithmetic unit using the data transfer command, and after this transfer, the data write contact information is given from the arithmetic unit to the positioning control device, and the positioning control data and the parameter area of the data area of the positioning control of the shared memory are transferred. The parameter is transferred to the data area and the parameter area of the positioning control of the system memory, respectively, and the data write completion contact information is transmitted from the positioning control device to the arithmetic unit. This has the effect of making it possible to set a larger amount of data than the sequencer without complicating the processing inside the device and without mixing old and new data.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a memory map of the method according to the first embodiment of the present invention, FIG.
FIG. 3 is an explanatory view of a memory map of the method according to the second embodiment of the present invention, FIGS. 4 and 5 are time charts for explaining the operation of the same, and FIG. 6 is a circuit configuration diagram of a conventional positioning control device. FIG. 7 is a circuit configuration diagram of a positioning control device which is the basis of the present invention. 5 system memory, a shared memory 11, A ₁ is positioned parameter area, A ₂ is positioning control data area, A ₃ is the window number area, B ₁ is positioning control data area, B ₂ is a system area, B ₂₁ Old window number area, B ₃ is a parameter area.

Claims (2)

(57) [Claims] An address signal, a data signal, and a control signal are connected to an arithmetic unit of a sequencer via an internal bus, and a positioning control device for performing positioning according to set positioning control data includes a microprocessor; A shared memory connected to the arithmetic unit via a bus and connected to a microprocessor via another bus;
In addition to the system memory, a positioning control data area and a window number area are set in the shared memory, an old window number area and a positioning control data area are set in the system memory, and conditional contact information from the arithmetic unit is set. The window number data from the arithmetic unit is written into the window number area of the shared memory based on the above, and based on the window switching contact information sent from the arithmetic unit after the writing, the data is positioned from the data area of the positioning control of the shared memory. The control data is saved to the positioning control data area of the system memory specified by the window number data of the old window number area of the system memory, and is written to the window number area of the shared memory. The stored window number data is saved in the old window number area of the system memory, and the positioning control data is transferred from the positioning control data area of the system memory corresponding to the window number data to the positioning control data area of the shared memory. After this transfer, the positioning control unit sends window switching completion contact information to the arithmetic unit, and the arithmetic unit releases the holding of the window switching contact information based on the window switching completion contact information and shares the sequence command. A data setting method for a positioning control device, comprising: reading and writing positioning control data written in a positioning control data area of a shared memory by a data transfer instruction to a memory. 2. A positioning control device for connecting an address signal, a data signal, and a control signal to an operation device of a sequencer via an internal bus, and performing positioning in accordance with set positioning control data, includes a microprocessor; A shared memory connected to the arithmetic unit via a bus and connected to a microprocessor via another bus;
A system memory is provided, a data area for positioning control, a window number area, and a parameter area are set in the shared memory; a parameter area and a data area for positioning control are set in the system memory; And writes the window number data from the arithmetic unit into the window number area of the shared memory based on the position control information specified by the window number data based on the window switching contact information sent from the arithmetic unit after the writing. The positioning control data is transferred from the data area to the shared memory and the parameters in the parameter area of the system memory are transferred to the parameter area of the shared memory. The end contact information is sent to the arithmetic unit, and at the time of reading, the arithmetic unit releases the holding of the window switch contact information based on the window switch completion contact information, and releases the shared memory by the data transfer instruction to the shared memory in the sequence instruction. When reading and writing the positioning control data written in the data area of the positioning control, the data to be written is transferred from the arithmetic unit using a data transfer instruction to the shared memory based on the window switching completion contact information. The write contact information is given from the arithmetic unit to the positioning control unit, and the positioning control data and the parameter area parameter of the positioning control data area of the shared memory are transferred to the positioning control data area and parameter area of the system memory, respectively. Data setting method for a positioning control apparatus characterized by sending from the positioning control apparatus data write completion contact information to the computing device.