4. PLC interface MCP1
Festo GDCP-CMXR-F-EN 0909a
33
Signal curve for stopping the program
Min. 1 prg running
SREG2.B6 RUNNING
1
Requirements:
ACK and NACK = 0
2
Rising edge at STOP
stops the program
number N
”
Condition:
Program is running
3
The STOP output must
carry 1-signal for as long as
it takes until the ACK input
also reports 1-signal.
4
As soon as ACK = 1 has
been recognised by the
PLC, it may reset STOP to 0.
The CMXR reacts with
a falling edge at ACK.
5
As soon as ACK = 0 has
been recognised by the
PLC, the controller is ready
for a new job.
Acknowledge
SREG2.B5 NACK
Load/reset Ack
SREG2.B4 ACK
Stop the program
CREG2.B4 STOP
Req. prg number
Output data
4.4.15
Parallel programs
The PLC interface can be used to start only one program. It is necessary to process parallel
programs, in this way subprograms can be activated from started main program with the
help of the RUN() instruction.
Subprograms are linked to the main program. This means that actions that are executed
for the main program also effect the subprograms.
STOP:
also ends all subprograms
UNLOAD: also unloads all subprograms
4.4.16
Override
Note
This function is only possible via MCP1-PB and not via MCP1-EA.
The COVR register can be used to specify the override for the controller. The current
override is shown in the SOVR register.
Содержание CMXR-C1
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