Siemens SIMATIC S5 Manual page 295

IP 266
Flags, auxiliary flags and edge flags
Flag
F 3.0 Edge flag (in example 2, Section 9.5)
F 4.0 Auxiliary flag for START
F 4.1 Edge flag for START
F 4.2 Auxiliary flag for STOP
F 4.3 Edge flag for STOP
F 4.4 Auxiliary flag for FORWARD/REVERSE
F 4.5 Edge flag for FORWARD/REVERSE
F 4.6 Auxiliary flag for TRANSFER
F 4.7 Edge flag for TRANSFER
EWA 4NEB 812 6057-02
Function
STEP 5 Programming
Remarks
This flag prevents a second job
from being started until "Job in
progress" has been returned
(see Section 9.5).
These flags prevent repeated
forwarding of the same job
requests to the IP when a com-
mand remains in force over
more than one OB 1 cycle
(see FB 20).
9-7