JPH0786828B2 - Remote control method - Google Patents

Description

DETAILED DESCRIPTION [Overview] In an information processing system including a plurality of information processing devices, a panel interface adapter is connected to an operation panel interface of the information processing device, and a control device including a personal computer and a panel interface adapter. Are connected to each other via an interface bus, and predetermined maintenance control of a desired information processing device can be performed via a panel interface adapter according to an instruction from the control device.

[Industrial application field]

The present invention relates to a remote control system for performing maintenance control of a plurality of information processing devices via an operation panel interface of the information processing devices.

An information processing system including a plurality of information processing devices is used in various fields. For example, in a switchboard, a function-distributed multiprocessor system in which processors are arranged according to functions in order to simplify software and improve processing capacity, or a load-distributed multiprocessor system in which processors are added according to load Etc. have been adopted.

[Conventional technology]

In information processing systems, remote control is required as a unified management, and various methods for the remote control have been proposed. For example, in the method disclosed in Japanese Patent Laid-Open No. 57-43253, a remote panel adapter with a simple panel is connected between an operation panel interface of a single information processing device and a remote terminal, and a special terminal is connected from the remote terminal. The test program is executed by the same operation as the operation panel without requiring the interface of.

[Problems to be solved by the invention]

The conventional remote control system is intended for a single information processing device, as shown in the above-mentioned known example, and cannot be directly applied to a system including a plurality of information processing devices. Further, the control using the remote terminal is merely a remote control of the operation panel, and therefore, there is a drawback that all operations such as maintenance can be performed only on the operation panel base.

SUMMARY OF THE INVENTION It is an object of the present invention, in a system including a plurality of information processing devices, to use an operation panel interface and to enable a high degree of control with an inexpensive configuration.

[Means for solving problems]

The remote control system of the present invention will be described with reference to FIG. 1. A plurality of information processing devices 1 each having an operation panel.
In the information processing system including the above, a panel interface adapter 2 is connected to the operation panel interface of the information processing apparatus 1, and the panel interface adapter 2 corresponding to the information processing apparatus 1 and the control device 3 for program control are interface bus. 4, the control device 3 and the plurality of panel interface adapters 2 are each assigned a device number, and the control device 3 specifies a transfer function for transmitting or receiving information by the device number.

In addition, the panel interface adapter 2 sets the state of the information processing apparatus 1 such as start and stop and the instruction of the internal operation according to the instruction from the control device 3 through the interface bus 4, and the interface bus 4. The control unit has a configuration for performing control of writing the data received via the internal register and control of sending the data read from the internal register to the interface bus 4, and is connected via the operation panel interface. A configuration is provided in which the state of the information processing device 1 is monitored, and when the state of the information processing device 1 becomes the state specified by the control device 3, the control device 3 is interrupted via the interface bus 4. However, the control device 3 designates an arbitrary number of information processing devices among the plurality of information processing devices 1 to perform remote control. A.

[Action]

By assigning device numbers to the panel interface adapter 2 and the control device 3, information can be transferred between arbitrary devices via the interface bus 4, and the control device 3 is configured to be program-controlled by a personal computer or the like. Thus, it becomes possible to cause a system including a plurality of information processing devices 1 to perform complicated control. Further, the change in the state of the information processing device can be immediately notified from the panel interface adapter 2 to the control device 3.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 2 is a block diagram of an embodiment of the present invention, in which 1 is an information processing device, 2 is a panel interface adapter, 3 is a control device by program control, and 4 is, for example, IEEE-488 /.
An interface bus such as a general-purpose interface bus specified in 488A, 11 is a display information line of the operation panel interface, 12 is a key operation information line of the operation panel interface,
21 is a microprocessor for controlling each part, 22 is a read only memory (ROM) storing control programs, 23 is a random access memory (RAM), 24 is the information processing device 1
A key control register for setting various signals for controlling, a general-purpose interface adapter 25 having an interface function between the interface bus and the internal bus,
26 is an internal bus and 27 to 29 are drivers.

A panel interface adapter 2 is connected to the operation panel interface of the information processing device 1, and a plurality of panel interface adapters 2 and an arbitrary number of control devices 3 are connected by an interface bus 4. The panel interface adapter 2 has a configuration in which each unit is controlled by the microprocessor 21, and display information such as lamp display information of the information processing device 1 is transferred via the display information line 11.
Further, a key control command or the like corresponding to the operation of a key on the operation panel is transferred from the key control register 24 to the information processing device 1 via the key operation information line 12.

FIG. 3 shows an example of address allocation of each part in the panel interface adapter 2. In the figure, in the range of addresses 0000 to FFFF, up to 2000 (23) is a random access memory (RAM), then up to 3000 (25) is a general-purpose interface adapter, and up to 4000 (24).
Is the key control register, then (2 to FFFF
2) shows each address assigned to the read-only memory (ROM).

The panel interface adapter 2 controls the information processing device 1 according to an instruction from the control device 3, reads the state of the information processing device 1, and interrupts the control device 3 when the state instructed by the control device 3 is reached. It has a function to perform.

The general-purpose interface bus specified in IEEE-488 / 488A consists of 8 data input / output lines, 3 handshake lines, and 5 management lines. The handshake lines are data valid lines and data reception lines. It consists of a non-signal line and a data reception incomplete signal line, and the management line is an attention line for indicating that the message on the data input / output line is control information and an interface clear line for putting each device into an idle state. And a service request line that notifies the controller that there is a service request, a remote mode line that sets each device to the remote mode, and an end identification that indicates that the message on the data input / output line is the final data information. It consists of lines and lines. It should be noted that other interface buses can be used in the present invention.

A device connected to such an interface bus 4 is
Controller, talker (talke)
r), a listener or a compound function. The talker sends out the information and the listener receives the information. A device having a plurality of talker or listener functions generally exists on the interface bus 4. It is the controller that directs which of these devices is the talker or the listener. The above-mentioned panel interface adapter 2 has the functions of both a listener and a talker, and the control device 3 has the functions of a controller, a listener and a talker.

The control device 3 and the panel interface adapter 2 connected to the interface bus 4 are all assigned device numbers, and the control device 3 as a controller uses these device numbers to specify talkers and listeners. . Therefore, so-called broadcast communication in which the same information is simultaneously transferred from the panel interface adapter 2 designated as the talker to the plurality of panel interface adapters 2 designated as the listener is possible. FIG. 4 is an explanatory diagram of device number allocation for devices connected to the interface bus 4, showing a case where one controller 3 and 30 panel interface adapters 2 are provided, and the device number is 5 bits.
It is represented by addresses A1 to A5.

FIG. 5 is an explanatory diagram of information transfer, in which ATN is an attention signal transferred by the attention line, DIO is data transferred by the input / output data line, and EOI is a transfer end signal transferred by the end identification line. Information transfer is divided into two modes, a command mode and a data mode. When the attention signal ATN is "0", the controller is in the command mode in which information is transferred via the interface bus 4, and the talker for each device, The listener is designated or the device is controlled. When the attention signal ATN is "1", the talker enters the data mode in which information is transferred to the listener.

A message on the input / output data line in the command mode becomes a bus line command, and this bus line command becomes a command word common to all the devices connected to the interface bus 4. UNL in this bus line command
Is an unlisten command for canceling the listener designation of all panel interface adapters 2 designated as listeners.
TA is a talker nomination command, and LA0 to LA2 are listener nomination commands. In the data mode, transfer end signal
The message on the input / output data line until EOI is sent becomes the transfer data.

FIG. 6 is an explanatory view of the function code data, and FIG. 7 is an explanatory view of the function code data transfer. The function code data is the order of the first data byte DB0 that indicates the operation content and the data byte for complementing it. It is composed of DB1 to DBn-1 and a redundancy code of the last data byte DBn. The redundant code is used for error checking, and a vertical parity or Hamming code for all orders and data can be used.

In order to transfer this function code data, the attention signal ATN is set to "0" to enter the command mode, the unlisten command UNL is sent, and all the devices on the interface bus 4 are once returned from the listener state to the idle state. Next, the talker nomination command TA is sent in order to make the controller talker. Next, in order to designate the panel interface adapter 2 as a listener, the listener designation command LA0
~ Send LAn. The listener designation in this case can be performed for a plurality of panel interface adapters 2.

Next, the attention signal ATN is set to "1" to set the data mode, and the order, the data and the redundant code are transmitted. Further, the transfer end signal EOI is set to "0" to indicate the end of data transfer in the data mode.

FIG. 8 is an explanatory view of the answer data, and FIG. 9 is an explanatory view of the answer data transfer. The attention signal ATN is set to “0” to set the command mode, and the unlisten command UNL is transmitted in the same manner as the above-mentioned case, and the listener state is set. All the devices in the idle state, and then the desired panel interface adapter 2
Sends a talker nomination command TA to make the talker a talker, then sends a listener nomination command LA to make the controller a listener, and sets the attention signal ATN to "1". The panel interface adapter that became the talker sends out data DB0 to DBn, and indicates the end of the transfer data by the transfer end signal EOI.

FIG. 10 is a diagram for explaining the key control command, which is for performing the same control as when a key on the operation panel is operated. The first data byte DB0 corresponds to the order, and the second data byte DB1 corresponds to the bit. Indicates the operation state of keys KEY0 to KEY7, and the third data byte DB2 is a redundant code for error checking. This key control command is the 7th
It is sent from the controller in accordance with the transfer operation of the function code data described with reference to the figure, and corresponds to various key operations with respect to the information processing device 1 corresponding to the panel interface adapter 2 designated as the listener. Control can be performed.

Further, FIG. 11 is an explanatory view of a read lamp command, showing the function code data when reading the lamp display information of the information processing apparatus 1, and according to the transfer operation of the answer data described with reference to FIG. 9, the panel interface adapter. Data is transferred using 2 as a talker and a controller as a listener, and FIG. 12 shows the answer data. That is, the ramp L corresponds to the bit of the first data byte DB0.
On / off information of AMP0 to LAMP7 is transmitted, and the second data byte DB1 becomes a redundant code for error check. Therefore, the lamp display information of the information processing device 1 corresponding to the panel interface adapter 2 designated as the talker can be read by the control device 3.

The above-mentioned key control command and read lamp command can be sent from the controller to control the information processing device 1 via the panel interface adapter 2. Similarly, writing to the internal register of the information processing device 1 is possible. It is also possible to read. Further, the panel interface adapter 2 has a function of interrupting the controller when the state of the information processing apparatus 1 shifts to the designated state, in addition to the above-mentioned functions.
As shown in Fig. 13, information processing device stop STP, display data change DISP, received data error detection ECCE
R, receive function code syntax error STXE
R, service request (SRQ) interrupt instruction RQS, stop STP of information processing device, display data change DIS
P can be interrupt masked by the mask instruction shown in FIG. Also in this SRQ factor mask instruction, the first data byte DB0 is in order, the second data byte DB1 is data indicating the instruction content, and the third data byte DB2 is a redundant code for error checking.

FIG. 15 is a diagram for explaining the serial poll. When an interrupt factor occurs as shown in FIG. 13 described above, the panel interface adapter 2 sets the service request signal SRQ to “0”. The controller sends this service request signal SR
When the occurrence of an interrupt is detected by Q, the serial poll is started.

In this serial poll operation, the attention signal ATN is set to "0" to set the command mode, the unlisten command UNL, the serial poll start command SPE, and the talker nomination command TA1 are transmitted as the data DIO by the input / output data line, and then the attention signal. Set ATN to "1" to enter data mode. In this data mode, the sense byte from the panel interface adapter 2 designated as the talker
SB1 is sent.

Next, after the attention signal ATN is set to "0" and the talker designation command TAi is transmitted, the attention signal ATN is set to "1", and the sense byte SBi (i = 1,2, ...) From the panel interface adapter 2 designated by the talker. -N) is sent. Similarly, when the interrupted panel interface adapter 2 is designated as a talker and a sense byte (SBi) is transmitted, the panel interface adapter 2 sets the service request signal SRQ to "1".

When the service request signal SRQ becomes "1", the controller sets the attention signal ATN to "0" and sends the serial poll end command SPD and the talker specification cancel command UNT.

FIG. 16 is an explanatory diagram of commands, showing a serial poll start command SPE, a serial poll end command SPD, a listener nomination command LA, an unlisten command UNL, a talker nomination command TA, and an antoker command UNT.
It should be noted that the X mark of the 8th bit of the data DIO indicates that it can have any content.

17 and 18 are operation explanatory diagrams of the panel interface adapter. Whether or not an interrupt factor has occurred is determined by the control of the microprocessor 21, and if there is an interrupt factor, the operation shown in FIG. Then, it is judged whether or not there is a factor mask. That is, the service request shown in FIG.
It is determined whether or not the mask instruction for the SRQ factor is set. If there is a factor mask, move to Fig. 17,
If there is no factor mask, the sense byte is created, the service request SRQ is sent (SRQ is set to "0") as described with reference to FIG. 15, and the process proceeds to FIG.

If there is no interrupt factor or if there is a factor mask, it is judged whether the attention signal ATN is "1" or "0". If it is "0", it is the command mode and whether the data is received or not. If it is determined and the data is received, if the data is the unlisten command UNL, the listener flag LF is set to "0". That is, the listener designation is canceled. In command mode, this unlisten command UNL is sent, so all listener specifications are canceled.

If it is the anchor command UNT, the talker flag TF is set to "0", and if it is the listener nomination command LA, the listener flag LF is set to "1", indicating that the listener has been designated.
If it is the talker nomination command TA, the talker flag TF is set to "1" to indicate that the talker is designated. If it is the serial poll start command SPE, the serial poll flag SPF is set to "1" and the serial poll end command SPD is set.
Then, the serial poll flag SPF is set to "0".

If the attention signal ATN is "1" and the data mode is selected, it is determined whether the listener flag LF is "1" and "0" is set.
If it is, it is not a listener designation, so it is next determined whether or not the talker flag TF is "1". If it is "0", it is not a talker designation, so the procedure returns to the first step. If the talker flag TF is "1", the talker is designated, so it is determined whether the serial poll flag SPF is "1".
In the case of "1", the process shifts to that shown in Fig. 18, the sense byte transmission and the service request SRQ transmission are stopped (SRQ is set to "1" as shown in Fig. 15), and Transition. When the serial poll flag SPF is "0", answer information is created and sent according to the order received at the time of listener.

When the listener flag LF is "1", it is judged whether or not the data is received, the received data is sequentially stored, and the transfer end signal is sent.
When EOI becomes "0", data transfer is completed. Therefore, error detection such as transfer bit error or function code syntax error is detected. If there is no error, order analysis is performed from the stored data. The order is executed. If an error is detected, the process moves to that shown in FIG.

By the operation as described above, it is possible to specify a desired information processing device from the control device 3 and perform predetermined control for the system including the plurality of information processing devices 1.

FIG. 19 is a block diagram of another embodiment of the present invention and shows a case where a remote control operation panel 30 is used as a control device. In the figure, 1 is an information processing device representing a plurality of information processing devices, 2 is a panel interface adapter, 4 is an interface bus, 31 is a microprocessor for controlling each part, 32 is a read storing a control program. Only memory (ROM), 33 is random access memory (RAM), 34 is a register for display information, 35 is a general-purpose interface adapter, 36 is an internal bus, 37 to 39 are drivers, and 40 is an operation panel.

The key operation information from the operation panel 40 is sent to the internal bus 36 via the driver 37 and temporarily stored in the random access memory 33 under the control of the microprocessor 31. Then, a command mode is set in accordance with the transfer operation of the function code data described with reference to FIG. 7, the remote control operation panel 30 itself is designated as a talker, and the panel interface adapter 2 corresponding to the desired information processing apparatus 1 is set.
Is specified as the listener, and then the command as shown in FIG. 16 is transmitted in the data mode.

When the read lamp command is sent from the remote control operation panel 30, the panel interface adapter 2 designated as the listener is designated as the talker, and the remote control operation panel 30 is designated as the listener, and becomes the talker. The answer data shown in FIG. 12 is sent from the panel interface adapter 2 to the interface bus 4. This answer data is transferred to the internal bus 36 via the driver 39 and the general-purpose interface adapter 35, transferred to the operation panel 40 via the register 34 under the control of the microprocessor 31, and the lamp of the information processing device 1 is displayed on the operation panel 40. Information is displayed.

In addition, the information processing device 1 from the control device 3 via the panel interface adapter 2 and the operation panel interface.
The information processing device 1 can be controlled via the input / output interface by using the control device 3 as an input / output terminal such as a typewriter to debug the software and hardware of the information processing device 1. When the panel interface adapter 2 identifies that a certain state designated by the control device 3 matches the state of the information processing device 1,
The panel interface adapter 2 can perform its own control on the information processing apparatus 1 according to program control and debug. It is also possible to connect a logic analyzer or the like to perform maintenance control such as automatic diagnosis.

〔The invention's effect〕

As described above, the present invention uses the control device 3 for program control, connects the panel interface adapter 2 to the operation panel interface of the information processing device 1, and controls the information processing device 1 via the panel interface adapter 2. Therefore, it is possible to designate any information processing device of the plurality of information processing devices 1 and remotely control by the control device 3, and to control the status change of the control processing device 1 via the panel interface adapter 2. Can be immediately notified, and the debugging of a multiprocessor system can be controlled remotely.

[Brief description of drawings]

FIG. 1 is a block diagram of the principle of the present invention, FIG. 2 is a block diagram of an embodiment of the present invention, FIG. 3 is an address allocation explanatory diagram, FIG. 4 is a device number allocation explanatory diagram, and FIG. 5 is an information transfer explanatory diagram. , Sixth
FIG. 7 is a function code data explanatory diagram, FIG. 7 is a function code data transfer explanatory diagram, FIG. 8 is an answer data explanatory diagram, FIG. 9 is an answer data transfer explanatory diagram, FIG. 10 is a key control instruction explanatory diagram, and FIG. Figure is an explanatory view of the read ramp instruction. Figure 12 is an explanatory view of the answer data. Figure 13 is an explanatory view of the format of the sense byte. Figure 14 is an explanatory view of the SRQ factor mask instruction. Figure 15 is an explanatory view of the serial poll.
FIG. 17 is a command explanatory diagram, FIGS. 17 and 18 are operational explanatory diagrams of the panel interface adapter, and FIG. 19 is a block diagram of another embodiment of the present invention. 1 is an information processing device, 2 is a panel interface adapter, 3 is a control device, 4 is an interface bus, 21 is a microprocessor, 22 is a read only memory (ROM), and 23.
Is random access memory (RAM), 24 is register, 25
Is a general-purpose interface adapter, 26 is an internal bus, 27 to 29
Is a driver.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yuji Shibata 1015 Kamiodanaka, Nakahara-ku, Kawasaki-shi, Kanagawa Within Fujitsu Limited (72) Inventor Minoru Watanabe 1015, Kamiodanaka, Nakahara-ku, Kawasaki, Kanagawa Within Fujitsu Limited ( 56) References JP-A-53-113443 (JP, A) JP-A-53-41144 (JP, A) JP-A-55-910 (JP, A) JP-A-56-87156 (JP, A) JP-A 57-43253 (JP, A) JP-A-58-114241 (JP, A)

Claims (1)

[Claims] 1. An information processing system comprising a plurality of information processing devices (1) each having an operation panel, wherein a panel interface adapter (2) is connected to an operation panel interface of the information processing device (1), The panel interface adapter (2) corresponding to the information processing device (1) and a control device (3) for program control are connected by an interface bus (4), and the control device (3) and a plurality of the panel interface adapters. A device number is assigned to each of (2) and the control device (3) specifies a transfer function for transmitting or receiving information by the device number, and the panel interface adapter (2) is configured to control the control device (3). ), According to an instruction via the interface bus (4), the information processing device (1) is in a state of starting, stopping, etc. And instructions for internal operation, control for writing data received via the interface bus (4) to an internal register, and control for sending data read from the internal register to the interface bus (4). And monitoring the state of the information processing device (1) connected via the operation panel interface, and the state of the information processing device (1) is controlled by the control device (3).
Has a configuration for interrupting the control device (3) via the interface bus (4) when a state designated by the control device (3) is reached. A remote control method characterized by specifying and controlling an arbitrary number of information processing devices among them.