JPS5870696A - Controller to be monitored - Google Patents

Abstract

PURPOSE:To use all input and output units, by converting addresses from a controller to be monitored, in which the 1st address is used for other objective addresses. CONSTITUTION:N sets of input and output unit sections 1-N of a controller to be monitored have M sets of input and output units 0-M-1 respectively, and all the input and output units are provided with a series of continuous addresses. A monitor controller (not shown) uses the 1st address designating input and output units normally as the address for a failure detection data for example, and the 2nd and succeeding addresses are used for the designation of the input and output units. An address conversion circuit 14 performs conversion shifting such addresses obtained through an MODEM 10 and a parallel serial conversion circuit 11 by one address and designates all the input and output units 1-0- N-(M-1) via the bus 13. The information from each input and output unit is inverted for the address and transmitted to the monitor controller.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention has N input/output units connected to the bus line of a monitored and controlled device of a remote monitoring and control system, each having M input/output units, which can read consecutive addresses in binary units. If the first address is used as an address for other purposes, and the supervisory control device specifies it as a consecutive address from the second address of the M input/output crab units of the N input/output crab units, the first address is used as an address for other purposes. This invention relates to a monitored control device that can also be used to enter and exit addresses.

FIG. 1 shows a block diagram of the main circuitry of a conventional monitored and controlled device.

In the figure, 1 to N are input and output crab knit parts, 1-0 to 1-(M-i
), 2-0~2-(M-1)t N-0~N-(M-1
) is the input/output crab unit, 10 is the modem, 11 is the serial/parallel converter circuit (hereinafter abbreviated as 8/P converter circuit), 12 is the parallel/serial converter circuit (hereinafter abbreviated as P/S converter circuit), and 13 is the motherboard. 1iit-shows 0 lower garments as an example of 6 in and out crab knits
Digit binary - indicates our address in bits.

Input and output crab knit parts 1 to N are each made of M pieces Q for mass production.
Input/output X = ,,ttt-! 1! As the G and O addresses to be installed, consecutive addresses in binary numbers are given, for example, as shown in the table above. For example, if M is 4, the input/output unit) 1-0 is set to oooooo as the Hiro address as shown in the table above.
Expand 000100 to 2-0 to 111011 to 15-3
t-gives 0 to the supervisory control device (not shown)
The control of the input/output unit of the supervised 'aIII control device shown in the first @ is the modem 10.8/P conversion circuit 11, mother @13J
-Via on! ! Incoming and outgoing Kanietsu 1-0 at O address
1-(Rhin-1-), 2-0 to 2-(M-1>, N-0
-N-(M-1), and the response is from the input/output crab unit to mother@113. with your own address. P/S conversion circuit 12. 0 through the modem IO, so at this time the first address oooooo.

For example, dJ! If this address is used as an address for data to detect normal times, input/output crab units 1-0 become unusable. For this reason, 1 @ input/output crab unit is wasted, and for example, if there are 60 input/output crab units as shown in the table above, if you want to use 60 units, another monitored control device is required, and (N
-1) If you want to use XM pieces, an N@O input/output crab knit part is required, which has the disadvantage of being expensive.

The purpose of the present invention is to provide a monitored controlled device that can be constructed at low cost by making it possible to use the input/output function of the X@th address in order to eliminate the above-mentioned drawbacks. In order to achieve
When specifying, even if the supervisory control device specifies the second address, the address is shifted by one by the address conversion circuit so that the input/output crab unit can be used from the first address. t4IlFgL.

An embodiment of the present invention will be described below with reference to the drawings. Second
FIG. 3 is an enlarged block diagram of a circuit of a main part of a monitored control device according to an embodiment of the present invention, and a block diagram showing an example of address conversion by an address conversion circuit of a third wtJ line according to a Q embodiment of the present invention. Items with the same functions as those in Figure 1 are indicated by the same symbols @14,1
5,16u address conversion circuit gold is shown. The circuit of FIG. 2 differs from that of FIG. 1 in that address conversion circuits 14 and 15t are provided.The general operation is the same as that of FIG. As for the address, if we use the first address 0000◇0 of 0 input/output 22, which will be explained in the example shown above using 6-digit binary pits, as the address of the data indicating the abnormality, for example, In the supervisory control device, the second address ooo is used to specify the input/output crab unit address.
Specify sequential numbers from ooi. When this address spine is sent from the monitoring control device, the address conversion circuit 14 subtracts 1 address and converts the 111th address oooooo to a consecutive number as shown in Figure 3. In the case of a response, the address conversion circuit 15 adds the shared address and returns the IH 1st address oooooo.
Those with consecutive numbers starting from o are shown in Figure 3.

As shown, the second address ooooox is converted into a sequential number of shi. is specified, and if the input/output crab unit l-〇Yoshi response is sent, the second address 00000 is sent to the supervisory control device.
1 This looks like a response from the input/output crab unit that waited for 0. This causes the input/output unit to move to the first address o.
ooo, oo t-You can also use the in-out crab knit you have. Therefore, the incoming and outgoing crab knits are not wasted, and as shown in the table explained in the conventional example, when there are 60 incoming and outgoing crab knits, 60 @
If you can use all of them and want to use ω pieces, use the monitored control device t-4.
If you want to use 0 or (N-1)XM units, you can use (N-1) O input/output crab knit sections. FIG. 2 is a circuit diagram of a conversion circuit that adds one address. In the figure, 1 to N are input and output crab knit parts, 1-0 to 1-(M-
1)*2-0~2-(M-t)tN-0~N-CM
-1) is input/output crab unit, 10 is modem, txFis/
P conversion circuit, 12 is P/S conversion circuit, 13 is bus bar, 14
, 15.16 is the address conversion circuit, 21, 221 24
．． 25 is a register, 23 is a 1-address subtraction circuit, 26 is a 1-address addition circuit, 31-3n, 61-6nFi not circuit, 41-43.81-83 is an AND circuit, 51-
5n and 71 to 7n are EX-OR circuits.

′! If)lah 72B P4 figure

Claims (1)

[Claims] The busbar of the monitored and controlled device of the remote monitoring and control system 7 has N connected input/output units (conveniently M input/output units) 1, which have consecutive addresses in binary units, 1 The supervisory control device uses the Mth address of the N input/output crab units as an address for other purposes.
When specifying consecutive addresses starting from the second address as the address of the input/output crab unit, if the input/output crab unit is receiving, the address is specified, and if the input/output crab unit is responding, the address is 1. A monitored and controlled device characterized in that an address conversion circuit for addition is provided on the side of the monitoring and controlling device of the toxic woman so that all address conversion circuits are used.