Specifications

Positioning IP 240
PAFE : QB QB or FY (0 to 239) for flagging errors ( Section 6.4)
BER : KF 0 Addressing in P area
1 Addressing in Q area
ABIT : KYx,y x=0 to 255 x>0 : The interrupt service OB is invoked on every signal
change of the interrupt bit
x=0 : The interrupt service OB is invoked only when the
interrupt bit goes from 0 to 1
y= 0 to 7 y : Interrupt bit in PY 0 set on switchbank S1
Note
Interrupts are not disabled in the configuring FBs. It must be ensured that these FBs
cannot be interrupted in the S5-115U, S5-135U (by setting for interrupt servicing
after every statement) and S5-155U (155U mode) by writing the STEP 5 program
accordingly. Interrupts are disabled in the restart OBs.
Cycle on-load caused by configuring
Because configuring of a channel increases the module firmware's cycle time, you
must write the STEP 5 program so that the other channel is in a safe wait state
while a configuring FB is in progress.
10-88 EWA 4NEB 811 6120-02a