Instance DB
S7-GRAPH for S7-300/400 Programming Sequential Control Systems
C79000-G7076-C526-01
15-5
Parameter
Description
Data
Type
Read
int.
Write int.
Read
Ext.
Write Ext.
OFF_SQ
OFF_SEQUENCE:
Turn off the sequencer
BOOL
yes
no
yes
no
INIT_SQ
INIT_SEQUENCE:
Initialize sequencer
BOOL
yes
no
yes
no
ACK_EF
ACKNOWLEDGE_ERROR_FAULT:
Acknowledge disturbance, force
switching to next step
BOOL
yes
no
yes
no
REG_EF
REGISTRATE_ERROR_FAULT:
Register all errors and
disturbances
BOOL
yes
no
yes
no
ACK_S
ACKNOWLEDGE_
STEP
Acknowledge step displayed in
S_NO
BOOL
yes
no
yes
no
REG_S
REGISTRATE_
STEP
Register step displayed in S_NO
BOOL
yes
no
yes
no
HALT_SQ
HALT_SEQUENCE
Stop/reactivate sequencer
BOOL
yes
no
yes
no
HALT_TM
HALT_TIMES:
Stop/reactivate all step activation
times and time-dependent
instructions (L and D) of the
sequencer
BOOL
yes
no
yes
no
ZERO_OP
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.
BOOL
yes
no
yes
no
EN_IL
ENABLE_INTERLOCKS:
Deactivate/reactivate interlocks
BOOL
yes
no
yes
no
EN_SV
ENABLE_SUPERVISIONS:
Deactivate/reactivate supervisions
BOOL
yes
no
yes
no
EN_ACKREQ
ENABLE_ACKNOWLEDGE_
REQUIRED:
Activate mandatory
acknowledgment
BOOL
yes
no
yes
no
EN_SSKIP
ENABLE_
STEP
_SKIPPING:
Activate skip step
BOOL
yes
no
yes
no
DISP_SACT
DISPLAY_ACTIVE_
STEP
S:
Display active steps only
BOOL
yes
no
yes
no
DISP_SEF
DISPLAY_
STEP
S_WITH_ERROR_
OR_FAULT:
Display steps with errors and
disturbed steps only
BOOL
yes
no
yes
no
DISP_SALL
DISPLAY_ALL_
STEP
S:
Display all steps
BOOL
yes
no
yes
no