Siemens SIMATIC S5 IP 281 Equipment Manual page 148

FB 21
SEGMENT 1
Name :CYCLIC
0008
0009 =DBNR
:IA
:L
DW
:T
DW
0010
0011 :L
DL
0012
0013 DW
0014 :L
:T DR
0015
0016 DW
0017
:T DL
0018
0019 DW
001 B :T DR
DW
001 E :L
001 F :T DL
DW
0020
0021
DR
0022
0023 DW
0024 :L
0025 DL
DW
0026
0027 PY
:T DR
.***
SEGMENT 3
:L K H (kOO
DR
DW
:T
0030
DW
0031
0032 :L
:T DR
0033
0034 DW
0035 :L
DR
0036
0037 DW
0038 :L
0039 :T
.***
:L
DW
:T PY
0040
0041 :L DR
0042 DW
PY
0043
0044 :L
DW
0045
0046 PY
0047
0048 DW
:L PY
0049
B: PROBEIST.S5D
MAIN CYCLIC PROGRAM OF THE 1P 281
READ COUNTER VALUE REGISTER
0001
O
O
27
1
27
2
28
3
28
4
28
5
28
6
30
7
o
30
READ STATUS REGISTERS 1,2,3
31
O
2
24
3
25
4
26
WRITE CONTROL REGISTER
0000
31
0
0
8
1
0
9
2
0
4
0
Programming Example
LEN=208
Sheet 1
Open working DB
Disable interrupts
Select register sat 1
Basic address (byte +0)
Read counter value register 1
Address byte +0 (reg. byte 3)
Address byte +1 (reg. byte 2)
Address byte +2 (reg. byte 1)
Address byte +3 (reg. byte O)
Read counter value register 2
Address byte +4 (reg. byte 3)
Address byte +5 (reg. byte 2)
Address byte +6 (reg. byte 1)
Address byte +7 (reg. byte O)
Enable interrupts
Select register set O
Store register set
Basic address (byte +0)
Read status register 1
Address byte +2
Read status register 2
Address byte +3
Read status register 3
Address byte +4
Select register sat O
Store register set
Basic address (byte +0)
Write control register 1
Address byte +1
Write control register 2
Address byte +2
Read status register 3
Address byte +4
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