Rockwell Automation 1747-ACNR15 ControlNet Adapter Module User Manual - Manual (Page 73)

Publication 1747-UM003A-EN-P
4-45
SLC Processor Ladder Program
0000
T4:1
DN
EN
DN
TON
Timer On Delay
Timer T4:1
Time Base 0.01
Preset 100 <
Accum 86 <
0001
T4:1
DN
COP
Copy File
Source #N12:0
Dest #M0:3.11
Length 64
L
6
0002
M1:3.3
6
U
M0:3.3
M0:3.3
6
0003
M1:3.3
9
Copy File
Source #M1:3.11
Dest #N13:0
Length 64
COP
M0:3.3
9
0004
O:3
10
1747-SCNR
0005 END
This rung gives the next rung a false-to-true transition every 1 second.
This rung copies up to 64 words (beginning with N12:0) to
the SCNR for transfer to the Basic module on ControlNet.
This rung completes the handshaking between the SLC processor
and, ultimately, the Basic module to accomplish the CALL 23.
This rung copies up to 64 words of data received from the Basic module when the
handshake bit, M1:3.3/9, is set. When data is received by the Basic module in PRT2,
the CALL 22 transfers it to the SCNR and, ultimately, to the SLC processor.
CALL 23 Input Handshake Bit
CALL 22 Input Handshake Bit
CALL 23 Output
Handshake Bit
CALL 22 Output
Handshake Bit
1747-SCNR
RUN/IDLE Bit
CALL 23 Output Handshake Bit