Assigning Parameters to and Calling the S7-Graph FB
S7-GRAPH for S7-300/400 Programming Sequential Control Systems
C79000-G7076-C526-01
9-5
9.5 Input Parameters of the S7-Graph FB
The FB reacts to the rising edge of the input parameter (exception EN).
Parameter Data
Type
Description Min. Std. Max. User-
def.
EN BOOL Controls execution of the FB (enable input). If
EN is not connected, the FB is always
executed.
áááá
OFF_SQ BOOL
OFF_SEQUENCE:
Sequencer off, in other words deactivate all
steps
ááá
INIT_SQ BOOL
INIT_SEQUENCE:
Activate initial steps (reset sequencer)
áááá
ACK_EF BOOL
ACKNOWLEDGE_ERROR_FAULT:
Acknowledgment of a disturbance, force
switching to next step
ááá
REG_EF BOOL
REGISTRATE_ERROR_FAULT:
Register all errors and disturbances
á
ACK_S BOOL ACKNOWLEDGE_STEP:
Acknowledge step indicated in S_NO
á
REG_S BOOL REGISTRATE_STEP:
Register step indicated in S_NO
á
HALT_SQ BOOL
HALT_SEQUENCE:
Stop/reactivate sequencer
áá
HALT_TM BOOL
HALT_TIMES:
Stop/reactivate all step activation times and
time-dependent instructions (L and D) of the
sequencer
áá
ZERO_OP BOOL
ZERO_OPERANDS:
Reset all addresses of the instructions N, D, L in
active steps to zero and do not execute CALL
instructions in actions/reactivate addresses and
CALL instructions.
áá
EN_IL BOOL
ENABLE_INTERLOCKS:
Deactivate/reactivate interlocks (the sequencer
behaves as if interlocks were satisfied)
áá
EN_SV BOOL
ENABLE_SUPERVISIONS:
Deactivate/reactivate supervision conditions
(the sequencer behaves as if supervision
conditions were not satisfied)
áá
EN_ACKREQ BOOL
ENABLE_ACKNOWLEDGE_REQUIRED:
Activate mandatory acknowledgment
á
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