JPS6235948A - Status reporting device - Google Patents

Abstract

PURPOSE:To make a system low-cost and high-reliability and to improve the analysis speed by transmitting successively status signals to a control unit from registers in plural status reporting devices on the basis of the clock signal supplied from the control unit. CONSTITUTION:Status reporting devices 40 and 41 each of which consists of a status register 1 where an error status signal is held, a unit address setting part 3 to which the unit address peculiar to each status reporting unit is set, and a timing circuit 2 are connected to status reporting units 50 and 51 and pair with them. A status report receiving device 12 consisting of a clock transmitting circuit 6 which supplies the clock for status signal transmission to status reporting devices 40 and 41, a status signal receiving circuit 7 which receives the error status signal, and a reception status register 8 where a reception status signal holding the received error status signal is held is connected to a control unit 9 and controls this unit 9.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a status reporting device that reports status signals from a plurality of status reporting units to a control unit.

〔overview〕

In a device for reporting status signals from a plurality of status reporting units to a control unit, the present invention transmits status signals from a status register in each status reporting device to a control unit I at a timing assigned to each status reporting device. By doing so, we will realize an inexpensive and highly reliable status reporting device.

[Conventional technology]

Conventionally, in this type of status reporting device, each status reporting unit has a first register that stores status signals indicating various statuses in the respective status reporting unit, and valid status signals to be reported to the first register. and a second register for displaying the unique address of the status reporting device when the status reporting unit is stored, and these two registers are connected to form one register, and the above two registers 1 There is a device that simultaneously shifts a set of registers, ANDs the register outputs of each status reporting unit, and sends it to the control unit as a single 2-register length signal (Reference: Japanese Patent Publication No. 1986-23.1E12). Publication "Status Reporting Device").

[Problem that the invention seeks to solve]

The conventional status reporting device described above records error status, etc. in a group of bits corresponding to the first register provided in each status reporting unit out of a single two-register long status word transmitted to a control unit. It is configured to display various status contents and further display the address of the unit reporting the status using a bit group corresponding to a second register provided in each status reporting unit.

However, the status word output from each status reporting unit is ORed at the same time, so if status words are output from multiple status reporting units at the same time, the control unit can directly output the status information and status from the status word. Since it is not possible to determine the correspondence of the word output with the status reporting unit, a hardware or software means is required to separate the status information for each status reporting unit from the ORed status word.

This makes the system expensive, and as the complexity of status words increases, it takes time to grasp the status information, which delays response and reduces the reliability of the system. The disadvantage was that other sources of information were needed.

An object of the present invention is to provide a status reporting device f1 that is inexpensive, highly reliable, and improves system analysis speed.

[Means for solving problems]

The present invention provides a device for reporting status information from a plurality of status reporting units to a control unit, including a register in each status reporting device for storing status signals indicating various statuses collected by the status reporting unit; A timing circuit that counts clock signals supplied from the unit and extracts the status signal sending timing assigned to each status reporting device, and the status extracted in each status reporting device from the registers in the plurality of status reporting devices. The apparatus is characterized by comprising means for sequentially transmitting status signals to the control unit according to transmission timing.

[For production]

The present invention sequentially transmits status signals from registers in a plurality of status reporting devices to a control unit based on a clock signal supplied from the control unit.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

The figure is a block diagram of one embodiment of the present invention. This embodiment is composed of a control unit 9 for controlling the system, a status receiving device 12, a status reporting device 40.41, and a status reporting unit 50.51.

Each status reporting unit 50.51 includes a status register 1 for storing an error status signal indicating an error status, and a unit address setting section 3 for setting a unique unit address of each status reporting unit 50.51. The unit address setting section 3
A status reporting device 40.41 configured with a timing circuit 2 that extracts the error/status sending timing assigned to each status reporting unit 50.51 according to the unit address set in the status reporting unit 50.41 is connected in a pair. .

On the other hand, the control unit 9 includes a status reporting device 40.41.
A clock sending circuit 6 supplies a clock for sending out a health status signal, a status signal receiving circuit 7 receives an error status signal sent from the status reporting device 40, 41, and stores the received error status signal. A status report receiving device 12 constituted by a receiving status register 8 is connected to control this.

Next, the operation of the status reporting device of the embodiment will be explained.

In the status reporting unit 50, the control unit 9
When an error to be reported to occurs, the status reporting unit 50 registers the status register 1 of the status reporting device 40.
Each of the 8 bits is used to set the error status according to the type of error. On the other hand, the control unit 9 periodically or as needed updates each status reporting device 40.
．． In order to observe the error status of 41, the clock sending circuit 6 is controlled via the clock sending circuit control line 16, and the status report connected to any timing clock vA10 among the multiple status reporting routes is connected to that route. A clock pulse train of 8 and 6 units is sent out. This clock pulse train is also supplied to the reception status register 8 via the latch clock line 14 at the same time. Each clock supplied from these clock sending circuits 6 uses a basic clock supplied from the control unit 9 via the basic clock line 15.

Similarly to the control of the clock sending circuit 6, the control unit 9 controls, via the status receiving circuit control line 17, to select the status signal line 11 of the same route for sending out the timing clock from among the plurality of status reporting routes. do. The status reporting device 40 counts the clock pulse train supplied via the timing clock line 10 by the timing circuit 2, and counts the clock pulse train that is assigned to the status reporting unit 50 in accordance with the unit address set in the unit address setting section 3. Only the 8-clock pulse train present is extracted and supplied to the status register 1. In the status register 1, an error status signal consisting of 8 bits, which is the contents of the status register 1, is shifted by these eight clock pulses and sent to the status signal line 11.

In this way, a signal train of error status signals sent out from each status reporting device 40, 41 is configured in synchronization with the timing clock pulse train supplied from the clock sending circuit 6. A signal train of error/status signals transmitted via the error/status signal line 11 is input to the receiving status register 8 via the status signal receiving circuit 7, and is input to the latch clock line 1.
Each status reporting device 40 .
The 8-bit error status signal transmitted from 41 is sequentially reproduced. The control unit 9 sequentially reads the reception status register 8 and analyzes the error status of each status reporting unit 50, 51.

〔Effect of the invention〕

According to the present invention, with the above-described configuration, a simplified and highly reliable status reporting device that operates under the control of the control unit without depending on the operation of the status reporting unit can be realized at low cost. In addition, you can receive status from any status reporting unit, and
Since multiple status reports can be viewed macroscopically and received at the same time, the speed of analyzing status information can be improved.

[Brief explanation of the drawing]

The figure is a block diagram of an embodiment of the status reporting device of the present invention. DESCRIPTION OF SYMBOLS 1... Status register, 2... Timing circuit, 3... Unit address setting section, 6... Clock sending circuit, 7... Status signal receiving circuit, 8...
Reception status register, 9...ttilJ? Wholesale unit, 12...Status report receiving device, 40.4
1...Status reporting device, 50.51...Status reporting unit.

Claims (1)

[Claims] (1) In a device for reporting status information from a plurality of status reporting units to a control unit, a register (1) for storing status signals indicating various statuses collected by the status reporting unit in each status reporting device; a timing circuit (2) that counts clock signals supplied from the control unit and extracts the status signal sending timing assigned to each status reporting device; A status reporting device comprising means for sequentially transmitting status signals to the control unit according to the status transmission timing extracted in the above.