20
Conditional Direct
Output Control
The Conditional Direct Output Control logic
controls the outputs OPEN, CLOSE and SIG-
NAL 1...4.
The outputs are activated on the basis of the
selected logic diagram and the status of input
channels 1...3 and 4...13. An output that has
been controlled remains active as long as there
is no such change in the status of the inputs,
that the logic inhibits the control of the output.
Fig. 13. Operation principle of the Conditional
Direct Output Control.
The Conditional Direct Output Control has the
same setting principles and program structure
as the interlocking program. The differences
between the two logic programs are:
- The codes of outputs OPEN and CLOSE
- The outputs SIGNAL1...4 can be controlled
by the Conditional Direct Output Control
program.
The output codes are:
Output code
Definition
220
OPEN
221
CLOSE
22
SIGNAL 1
23
SIGNAL 2
24
SIGNAL 3
25
SIGNAL 4
The Conditional Direct Output Control pro-
gram is written before or after the interlocking
program by using the SPA protocol commands
M200...M300. These two programs have a com-
mon END command.
Example 9
An interlocking program is set in example 8. In
the example below a Conditional Direct Out-
put Control logic program is added for the out-
put SIGNAL 3.
Output SIGNAL 3 output is to be activated if:
- CB truck is in the isolated position and input
channel 4 is activated.
Fig. 14. Detailed logic diagram of the Condi-
tional Direct Output Control logic in example 9.
The Conditional Direct Output Control logic
above is started with the following commands:
...
; Interlocking logic command lines
M200...M205
>99WM206:LOAD 201:XX
; Read isolated status of CB truck
>99WM207:AND 4:XX
; Read active status of input 4
>99WM208:OUT 24:XX
; Activate SIGNAL3 output
>99WM209:END:XX
; End of program
>99WS198:1:XX
; Change program into run mode
>99WS199:1:XX
; Start program
>99WV151:1:XX
; Store the programmed parameters
DIRECT OUTPUT
CONTROL
1
OPEN/CLOSE OR
SIGNAL 1…4
OUTPUT
&
201
4
24
SIGNAL 3
