Rockwell Automation Allen-Bradley Dialog Plus 1503D - Page 113

Serial Communications 8-15
1560D-UM051D-EN-P – February 2005
Data Path for the BTW – Rung 2:6 of the sample ladder-logic program that
follows executes a COP instruction to the M0 file to load the necessary
data for the BTW.
Address 0123456789 Address 0123456789
N10:0 J M0:1.100
N10:10 J M0:1.110
N10:20 J M0:1.120
N10:30 J M0:1.130
N10:40 J M0:1.140
N10:50 J M0:1.150
N10:60 J M0:1.160
N10:70 J M0:1.170
Address 0123456789 Address 0123456789
N10:0 J M0:1.100
N10:10 J M0:1.110
N10:20 J M0:1.120
N10:30 J M0:1.130
N10:40 J M0:1.140
N10:50 J M0:1.150
N10:60 J M0:1.160
N10:70 J M0:1.170
BTR Datafile Format – A BTR Datafile must also be defined to accept the
data read during the BTR operation. For this example, the BTR Datafile
will begin at address N10:110.
BTR Datafile
Header Word
PLC Decimal Value
Number of Parameter Values to Read
Starting Parameter Number
Address0123456789
N10:110 15
X
11 1 #1#2#3#4#5#6
N10:120 #7 #8 #9 #10 #11
X
Message OK: 1
Message Error: -32767
Header Word
PLC Decimal Value
Number of Parameter Values to Read
Starting Parameter Number
Address0123456789
N10:110 15
X
11 1 #1#2#3#4#5#6
N10:120 #7 #8 #9 #10 #11
X
Message OK: 1
Message Error: -32767