Program listing for 5/01 – Rockwell Automation 1747-DCM,D17476.8 Direct Communication Module User Manual
Page 60
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Chapter 8
Application Examples
8–6
Input Image
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
I:1.0
Status Word to SLC from PLC-5
I:1.1
Not used
I:1.2
Not used
I:1.3
Not used
DCM
I:1.4
Not used
I:1.5
Not used
I:1.6
Not used
I:1.7
Not used
I:2.0
NI4 word 0
I:2.1
NI4 word 1
NI4
I:2.2
NI4 word 2
I:2.3
NI4 word 3
I:3.0
NI4 word 0
I:3.1
NI4 word 1
NI4
I:3.2
NI4 word 2
I:3.3
NI4 word 3
Program Listing for 5/01
Processor File: MULTPLX1.ACH
Rung 0 sets the starting point of the C5:0 counter. This is done on the first scan of the program S:1/15
(first scan bit) and C5:0/DN (done bit 0) of the counter, ensuring that only the analog modules in slots 2
through 5 are read.
] [
C5:0
DN
RUNG
2.0
] [
S:1
15
MOV
MOVE
Source
2
Dest
C5:0.ACC
Rung 1 increments the C5:0 every 5.12 seconds. The value in the ACC is referenced to the slot that the
DCM will send the data from, starting at slot 2.
] [
S:4
RUNG
2.1
CTU
Countup
Counter
C5:0
Preset
6
Accum
0
8
5.12 Seconds Time Bit
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