Siemens SIMATIC S5 Equipment Manual page 169

Programming Instructions
9.5.3 Assignment of the Inputs and Outputs
The program is designed in a way that allows easy adaptation to different input and output assign-
The program blocks PB 11, PB 12, PB 13, FB 11 and FB 12 contain the test program and
ments.
work with flags only. The inputs and outputs to be used are allocated to these flags in organization
blocks (OB 1, OB2, OB20, OB21, and OB22). Intheexamplethey are inputword IW4and output
word QW4and in case oftheS5–115U, inputword iW4and output word QW8. The output Q5.7 (
Read actual value channel 1
14.0
Read initial setpoint track 4
14.1
AW
Read end setpoint track 4
14.2
EW
14.3 Software-based synchronizing channel 1
14.4 AE Modify setpoints for track 4
14.5 Is Inhibit interrupt
Iv Inhibit interrupt for supplying the module with new setpoints
14.6
Read zero shift, channel 1
14.7
15.0 N2
Read zero shift, channel 2
15.1
PR Activate "verify-read" special function
15.2
MB Activate "calculate average value" special function
15.3 Inhibit interrupt depending on direction
RV
—
15.4
15.5
15.6
"O": indirect parameterization (FB 158), "1": direct parameterization (FB 157)
Reset alarm output Q5.7
15.7
Parameter PAFE (FB 156 in start-up)
Parameter SPFE (FB 156 in start-up)
Parameter PAFE (FB 157 or FB 158 in interrupt program)
Parameter SPFE (FB 157 or FB 158 in interrupt program)
—
Group signal parameter PAFE (FB 157 or FB 158 in cyclic program)
Group signal parameter SPFE (FB 157 or FB 158 in cyclic program)
Channel 1 synchronized
—
Interrupt output (has signal status"1" after an interrupt)
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