JPH04170656A - Data processor - Google Patents

Abstract

PURPOSE:To expand a diagnostic function by providing this data processor with a means for transmitting an interruption signal to the other channel at the time of generating a fault and informing fault information and a means for allowing the channel receiving the information to inform the contents of the information to a local channel device. CONSTITUTION:When faults are continuously or intermittently generated in one remote channel 302 in a remote channel device 200, either one of fault registers 401, 402 is set up, its contents are set up in a fault information register 403 through a signal line 1e or 1f and a fault generation interruption signal is sent also to the other channel 301 through a signal line 1c. The channel 301 receiving the interruption signal forms fault information sending timing by a transfer control circuit 503, switches connection by a selector 501 and informs the fault information from a sending register 502 to a local channel device 100 through a serial interface 1a. Consequently, the maintenance diagnostic function can be expanded and the fault information can easily be collected.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a data processing device, particularly to a local channel device and a remote channel device connected to a serial interface. The present invention relates to a data processing device that performs data collection.

[Conventional technology]

Conventionally, in this type of data processing device, in a local channel device sandwiching a serial interface and a remote channel device having multiple channels, when a failure occurs in a channel in the remote channel device lower than the serial interface, the serial interface section In the event of a failure, detailed failure information could not be sent; the local channel device only had a means of detecting that a failure had occurred. .

[Problem to be solved by the invention]

The conventional data processing device described above has a configuration of a local channel device and a remote channel device with a serial interface in between.When a failure occurs in a certain channel in the lower remote channel, especially when a failure occurs in the serial interface section, the local channel device Since the interface is interrupted, it is possible to detect an abnormality, but since there is no means to report detailed fault information of the remote channel device to the maintenance/diagnosis device, it is difficult to collect fault information. Therefore, there is a drawback that it takes a long time to search for a fault.

[Means to solve the problem]

The data processing device of the present invention is a remote channel device that is connected by a serial interface to a local channel device connected to an input/output processing device, and performs data transfer with the input/output processing device, and has a plurality of channels. In this case, a means for detecting the occurrence of a fault in one channel and notifying other channels, a means for transmitting fault information, and a means for the channel receiving the fault information to be transferred to a local channel device via a serial interface. have.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention.

The data processing device includes a local channel device 100, a remote channel device 200, and a remote channel device 2.
It is composed of a plurality of channels 301 and 302 within 00.

When a fault occurs continuously or intermittently in the channel 302 in the remote channel device 200, either the fault register 401 or 402 is set, and its contents are set in the fault information register 403 via the signal lines 1e and if. At the same time, signal line I is also connected to other channels 301.
An interrupt signal indicating the occurrence of a failure is sent at C.

Upon receiving this, the channel 301 uses the transfer control circuit 503 to create a timing for transmitting the fault information, and the selector 50
1, and the fault information is notified to the local channel device 100 via the sending Reg 502 and the serial interface 1a.

In FIG. 2, the data transfer device is the main memory control device 1.
0, the input/output processing device 20, and the remote channel device group 40 connected to the local channel device ff group 301 to 30f11 serial interface 1j under the input/output processing device 20.
．． ~40□, and peripheral devices 601-6 connected to it
0□.

Local channel device groups 301 to 30 that have received a startup instruction from the input/output processing device 20. , give transfer instructions to the remote channel device groups 40□ to 40° according to the channel program stored in the main storage processing device 10.

A remote channel device group 40 receives a transfer instruction from the input/output processing device 20. ~40. The main storage device 10 and the peripheral device group 60. Data transfer is performed between 601 and 601.

During the above data transfer, when a failure occurs in the remote channel 50□, a failure interrupt signal 1h is reported and the signal line 1
1 receives failure information, and reports it to the local channel device 301 through the serial interface lj.

〔Effect of the invention〕

As explained above, the present invention provides a means for transmitting an interrupt signal to the other channel to notify failure information when a failure occurs in one channel in a remote channel device, and a means for notifying the failure information of the channel that received the notification. By having means for reporting the contents to the local channel device via the local channel device, it is possible to expand the diagnostic function.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a block diagram showing data transfer according to the present invention. 100.30...Local channel device, 200°4
0...Remote channel device, 60...Peripheral device,
10... Main storage device, 20... Input/output processing device, 3
01.302.50...Channel, 501...Select 9.401,402...Fault register, 403...
・Fault information register, le, if, 1c+lh...
・Signal line, la, 1b+ ld, lit 1j...
- Data line, 503...transfer control circuit.

Claims (1)

[Claims] In a data processing device comprising a local channel device connected to an input/output processing device and a remote channel device connected by a serial interface and having a plurality of channels and transferring data with the input/output processing device, the remote channel device a first means for detecting that a fault has occurred in a certain channel in the device and notifying other channels of a fault interrupt; a channel that has received the notification has second means for receiving the fault information; a third means for reporting to the local channel device through the serial interface;
, a data processing apparatus characterized in that the third means notifies the occurrence of a failure in the remote channel device and also notifies the failure information.