JPH02146896A - Control output circuit - Google Patents

Abstract

PURPOSE:To select the connection of an optional common control line optionally to an optional control object position by connecting open and close contacts of a changeover circuit together with all combinations for the open/close state of a common control lines of a device to be controlled. CONSTITUTION:A changeover section 1 has mn sets of open and close contacts, in total 2mn, Pr11-1, Pr11-2,...Prmn-2 corresponding to open/close contacts of a control item POS 11 to open/close contacts of POS mm. A control selection section 2 has a connection circuit as a passive circuit applying all combination jumpers corresponding to open/close contacts corresponding to the open/close output of m-set of common control lines COM1-COMm and 2mn-set of changeover contacts Pr11-1, Pr11-2,...Prmn-2 of the changeover section 1 by using changeover relays 4-1a,4-16-4-ma,4-mb, and the changeover contacts Pr11-1, Pr11-2 to Prmn-2 provided to the changeover section 1 are connected to any switching state of the common control lines COM1-COMm while being correspondent to open/close states.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a control output circuit, and in particular, to a control output circuit that is connected between a monitoring control device that remotely controls the operation monitoring and control of power equipment and other industrial equipment, and controlled equipment. This invention relates to a control output circuit that intervenes to switch and connect a common control line of controlled devices in order to cause the controlled devices to execute the control contents for each control group under the control of a supervisory control device that is a master station. .

[Conventional technology]

Conventionally, this type of control output circuit has been configured as shown in FIG. 2, for example.

From the controlled device, there are 2m switching relays 4-1a with m lines COMI to C0Mm as common control lines for each group to be controlled.

It is connected to m switching relays 3-1 to 3-m via 1b to 4-ma and mb, respectively. This common control line is usually used as a control target (such as an earth line or a DC power line).
It is a line that can be turned on and off by turning the connection ``off'' and ``on'' to the line (position).

mWA switching relays 4-1a to 4-ma are line ``
m switching relays 4-1b to 4m
b is a line "contact" control relay, and m switching relays 3-1 to 3-m are respectively switching relays 4-1a.
~4-ma and 4-1b~4mb corresponding to n switching contacts P r 1-1 ~ P r, -1, P r 1-2 ~
The switching relays 3-1 to 3-m provide control outputs (control items) such as PO311r off''=l'0
31nr cut "PO511r included" - PO31nr included J-P
O8m1 "cut" ~ PO8mn "cut J PO3m1r person" ~ POSmn r person'' is output.

Note that these control outputs are available when the common control line is turned off and
It can also be said to be a control item that applies a state of "on" to a controlled object.

Each of the control outputs "off J2" and "on" corresponds to n positions to be controlled, and is set based on the maximum number of control objects.

[Problem to be solved by the invention]

In the conventional control output described above, each common control line of each control group to be controlled is turned off.

Since it is equipped with switching relays each having n switching contacts for "turning on", it includes a large number of unnecessary switching contacts; and it is not possible to selectively apply any position and any common control line in correspondence. There are drawbacks.

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the above-mentioned drawbacks, eliminate unnecessary switching contacts, and provide a control output circuit that can selectively connect any common control line to any position.

[Means to solve the problem]

The circuit of the present invention is located between a controlled device whose operation is monitored and controlled by a remote monitoring and controlling device and the monitoring and controlling device, and is necessary for controlling the operation of the controlled device under the control of the monitoring and controlling device. In a control output circuit that forms a control circuit and makes it possible to supply a control output to a control target location, the control output circuit is connected to each of the m common control lines necessary for controlling the operation of the controlled equipment, and its "cut J" and " 2m switching relays for switching on and n of the controlled equipment.
a switching section having 2mn switching contacts for switching the "OFF" and "ON" states of the m common control lines at each of the 2m control target locations; and an output of each of the 2m switching relays. and a control selection section in which all combinations of the switching section and the input side of the 2mn contacts of the switching section are connected to each other for each "off" and "on" group.

〔Example〕

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

FIG. 1 is a configuration diagram showing an embodiment of the present invention. 1st
The illustrated embodiment includes a switching section 1, a control selection section 2, and a switching relay 4.
-1a, 4-1b to 4-ma.

4-mb.

The switching unit 1 "cuts" m common control lines.

The control output that should provide the "ON" state to n controlled object positions, that is, the control item PO9II "OFF J + r ON J to PO3mm r OFF", corresponds to "ON", "OFF",
A total of 2 mn switching contacts P rll- for each “on”
1+ Pr 11-2”・P r an-1゜Prm
It has n-2.

In addition, the control selection unit 2 performs common control via 2m relays of the common control line, including switching relays 4-1a to 4ma for switching off control and switching relays 4-1b to 4mb for switching on and off control. Connected to lines COM1 to C0Mm.

The control selection unit 2 includes switching relays 4-1a, 4-1b to 4-
"cut" of m common control lines C0M1 to C0Mm provided by ma, 4-mb.

“In” output and 2mn switching contacts P r of switching unit l
++-t, P r It-2 ~ P ran-1, P r
It has a connection circuit as a passive circuit that has all the combination connections for an-2 and "off" and "on", and it has "off" and "on" common control lines C0M1 to C0Mm of the target equipment.
The switching contact Pr of the switching unit 1 is in the "ON" state.
The "off" and "on" contacts of 11-1 to P r +an-2 are connected in correspondence with "off J" and "on J".

Switching relays 4-1a to 4-mb in such a connection
, and the switching operations of the switching unit 1 are all remotely controlled by the monitoring and control device so that any one of the selected connections is made.

In this way, any switching contact of the switching unit 1 is selectively connected to any common control line, and any position of the controlled device is selectively connected to any common line, and its "connection" and "input" are performed.
, it is possible to freely control the movement of any target position.

〔Effect of the invention〕

As explained above, the present invention includes all combinations of the "off" and "on" states of the common control line of the controlled equipment and the "off" and "on" contacts of the switching circuit that switches and sends the control output. By connecting "off" and "on" together, it is possible to selectively connect any common control line to any position to be controlled, and the circuit configuration can be greatly simplified.

[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 of a conventional control output circuit. 1... Switching section, 2... Control selection section, 3-1 to 3-m
...Switching relays 4-1a, 4-1b to 4-ma. 4-mb-・-switching relay, Prl-1~P
r, -2Prll-1''-Pr-2...Switching contact.

Claims (1)

[Scope of Claims] A device located between a controlled device whose operation is monitored and controlled by a remote monitoring and controlling device and the monitoring and controlling device, and necessary for controlling the operation of the controlled device under the control of the monitoring and controlling device. In a control output circuit that forms a control circuit and makes it possible to supply a control output to a part to be controlled, it is connected to each of the m common control lines necessary for controlling the operation of the controlled equipment, and 2m switching relays for switching on and off, and 2mn switching relays for switching between the m common control lines and the switching states for each of the n controlled locations of the controlled device. A switching unit having contacts, and the output side of each of the 2m switching relays and the input side of the 2mn contacts of the switching unit are connected including all combinations for each “off” and “on” group. A control output circuit comprising: a control selection section;