Programming Instructions
R 02/92
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-
ments.
The program blocks PB 11, PB 12, PB 13, FB 11 and FB 12 contain the test program and
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
(
Q9.7
with theS5–115U) is firmly assigned as “interrupt output”.
14.0
14.1
14.2
14.3
14.4
14.5
14.6
14.7
15.0
15.1
15.2
15.3
15.4
15.5
15.6
15.7
Iw
AW
EW
Ss
AE
Is
Iv
N1
Read actual value channel 1
Read initial
setpoint
track 4
Read end
setpoint
track 4
Software-based synchronizing channel 1
Modify
setpoints
for track 4
Inhibit interrupt
Inhibit interrupt for supplying the module with new
setpoints
Read zero shift, channel 1
N2
Read zero shift, channel 2
PR
Activate “verify-read” special function
MB
Activate “calculate average value” special function
RV
Inhibit interrupt depending on direction
—
—
“O”: indirect
parameterization
(FB
158), “1”: direct
parameterization
(FB
157)
Reset alarm output
Q5.7
Q4.O
/
Q8.O
Q4.1
/
Q8.1
Q4.2
/
Q8.2
Q4.3
I
Q8.3
Q4.4
I
Q8.4
Q4.5
I
Q8.5
Q4.6
I
Q8.6
Q4.7
/
Q8.7
Q5.O
/
Q9.O
Q5.1
/
Q9.1
Q5.2
/
Q9.2
Q5.3
/
Q9.3
Q5.4
/
Q9.4
Q5.5
/
Q9.5
Q5.6
/
Q9.6
Q5.7
I
Q9.7
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)
9 – 48
1P
241 Equipment Manual
@SiemensA(31989,
Order
No.:
6E.f35
gg&OKD21
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