JPS58175039A - Connecting state management system - Google Patents

Abstract

PURPOSE:To recognize the connecting state of a provided input/output device at a channel device, by reporting and managing the connecting state. CONSTITUTION:When the inputs of a comparator 101 are coincident, a forming circuit 103 forms a status bit ''1''. Then, the content of an area of a memory corresponding to an address stored in an address register 108 in advance is read out in a register 110. When it is a status bit ''0'', ''1'' is written in an area of a memory 109 corresponding to the said address as the registration processing, the reception number is returned to the I/O to complete a series of setting procedure. When a readout register reads out the status bit ''1'', it is discriminated as the duplicated use of the device number or the address. The content of the area corresponding to the address is not revised, a refusal signal is transmitted to the I/O and the failed state of the said address is displayed and outputted to a suitable display means such as a display panel 114.

Description

[Detailed description of the invention]

(a) Minute hand The present invention relates to interface control between a channel device such as a nose meter and each input/output device installed in each channel of the channel device, and particularly relates to control of the interface between a channel device such as a nose meter and each input/output device installed in each channel of the channel device. V
Regarding the advance method. (b) Prior art For each input/output device arranged in nine channels, it is determined from the channel side which calling address (usually a device number) the input/output device is connected to, that is. In order to find out whether the devices were ready for operation, K had to individually check the display panels of each input/output device. In addition, if the machine number (calling address) of the installed equipment is incorrectly set and duplicated, it will prevent the normal operation of the system. Therefore, the address setting circuit of each input/output device is
i have to examine the switches individually and system installation 1
There is no easy way to know on the channel side when changing or changing the running input/output device, or when there is a malfunction. The special feature of the present invention is to report and manage the status of the installed input/output devices on the channel device side. In interface control between a channel device that connects a device and an input/output device, it has a judgment and signal procedure for determining and reporting to the channel device immediately after the input/output device is in a connected state and immediately before it is in a disconnected state,
The channel device uses the signal as interrupt information to refresh the management table of the input/output devices installed in the channel managed in the memory of the device, and calculates the machine number of each installed input/output device. It is to manage the connection status. 2) Examples Below, in order to specifically explain the unexploded tube, examples will be used to explain it. Figure 1 is a conceptual diagram of the object of the invention, in which 1 is a computer, 2 is its channel device, 11, 12 .13. ...1m
＋・・・・・・! 1.1. n2.・・・・・・nm
, is an input/output device (hereinafter referred to as 110) arranged in channels 1 to n of the channel device.0 Fuji Figure 2 is an explanatory diagram of an embodiment of the present invention, and the channel! ! This eliminates the transmission and reception of signals between the wrinkles and Ilo. Fig. 3 is an explanatory diagram of one embodiment of the present invention, in which the channel equipment rj
This is an explanatory diagram of the required function unit for managing the connection status of 110 units in IIt.Although the diagram is omitted, each I10 side r (F has a specific code sending procedure) and the power supply of Ilo. When the mode switch is turned on and the mode switch is connected, the status signal goes up and the channel reports the specific code for interrupt registration and its own machine number, and when the mode switch is disconnected, the status signal goes down. 101 in Figure 0, interrupt the channel and report the own machine number and a specific code for deregistration. Comparators 103 and 104 are for detecting a specific code in the data received from 1o2ijt10, respectively, and the rounding status bit [1] registers and manages the connection state m.
and

[0] creation circuit, 105. 106. 107 is an OR gate, 108 is an address register for memory scanning, and the cough address is associated with the machine number 110. 109 is a memory for registering and managing Ilo's 1ik wire WI, 110 is a Fi indulgence register, 113 is an inverter,
111 and 112tl are connected in each comparison circuit.
This monitors whether the machine number (address) is registered twice. Further, 114 is a display panel of a channel device or a computer, and in addition to this, the display panel 170 of the channel device naturally has the functions of a normal configuration for controlling the channel device and sending messages to the father. When one of the 110s arranged in such a configuration is powered on and turned on and enters a connected state, the connection sequence involves #110 sending an interrupt request signal to the channel device and seizing the channel. . When an interrupt is generated and the selection mode is entered and the father's credit card enable signal is returned, the 110 sends out the address information (name address such as machine #Iti) along with the address notification signal as a transfer block, and the channel device side transfers this to the address register 108. When the reception signal is returned, the 110 side sends a status notification signal (specific information as status information; here, information reporting that the connection status U (abbreviated as Enable) K has changed) as a transfer block. When the channel block receives the block, the specific information is detected by comparison -101 and the registration process begins.In other words, when the comparator 101 matches, the creation circuit 103 creates the state bit (1)1. Then, first address register 108
To: Read out the contents of the memory area corresponding to the stored address in the register 110. If the state is 0 (0), the output of the comparison circuit 112 will be (1). In this case, O. writes [1] in the area of memory 109 corresponding to the corresponding address as a registration process and returns an acceptance signal to 110 to complete a series of setting procedures, and the read register reads out the status bit [1]. When the comparison circuit 11111i1 matches and outputs [1], in this case, it is determined that the machine number or address 21 is used, and the contents of the area corresponding to the address are not updated and a rejection signal is sent to 170. At the same time as sending the money, a display is output to an appropriate display means such as the panel 114 indicating that the address is abnormal. In addition, if you want to cancel the connection status, please use Fi110@
When an online switch is brought offline, an interrupt request signal is raised as a series of disconnection sequences, and the information that comparator 102 matches as specific information is exchanged in roughly the same procedure as when the destination was connected. Sending/receiving creation circuit 1
(0) t-Create the area of memory 109 corresponding to the address.

Rewrite to [0]. In order to find out whether or not there is a connection state nK, it is possible to read out the contents of the memory 109 corresponding to the wrinkled address by giving the read address A and the read timing Ti. More than t-l10
By requesting requests from the side or the computer, the channel side can manage the connection status of the installed Ilo, making it easier to discover abnormal connections. In addition, when using Address Ni Jk, the display can be displayed later on the display panel cape of 110, which makes it easy to search for the 110 in the 110 group. (E) Effects As explained above, according to the present invention, it is possible to grasp the connection status of the 110 installed on the channel device side, which makes it easier to discover abnormalities, and furthermore, when necessary during system operation. This has a significant effect in that it becomes possible to determine whether or not 110 is connected. FIG. 1 is a conceptual diagram of the subject of the invention. FIG. 2 is an explanatory diagram of one embodiment of the present invention. FIG. 3 is an explanatory diagram of one embodiment of the present invention. In the figure, 1 is a computer, 2 is a channel device, 11°12, ・
...1m, ...nl, n2.・・・n
101 and 102 are comparators, 103 and 104 are creation circuits, 105, 106 and 107 are or game), 108 Fi address register, 109 is memory, 110 is read register, 11
3Fi inverter, 111 and 112 are comparison circuits / 12 71'7'2 No. l Figure 2 Figure 3 Flash

Claims (1)

[Claims] In interface control between a channel device that connects an input/output device and the input/output device, judgment and order in which the input/output device determines when it becomes connected and immediately before it becomes disconnected and reports it to the channel device. The channel device uses the signal as interrupt information to update the management table of the input/output devices installed in the channel managed in the memory of the device, and updates the management table of the input/output devices installed in the channel. Connection status management method 0 characterized by managing the machine number and connection status of