Rockwell Automation SMC Dialog Plus User Manual page 122

BT Control Buffer Layout – The following table maps integer files
starting at N10:0 with the associated M0 file location as defined in the
sample ladder logic program that follows.
BT Control Datafile
Address 0 1
②
N10:0 64
①
BT logical address format: logical rack/group/slot (slot is always "0" for the 1203-GD1)
Logical address examples Logical Rack 0, Group 0, Slot 0 = 0
②
This word is set by the ladder logic program. Refer to the 1747-SN scanner manual for Control Flag
Definitions.
BTW Datafile Format – A four-word data file is required to
accomplish a "Continuous Parameter Value Read." For the example
that follows, the BTW Datafile will begin at address N10:10.
BTW Datafile
Address 0 1
①
N10:10 4 1
①
This is a fixed value, associated with the "Continuous Parameter Value Read" function.
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 0 1 2 3 4 5 6 7 8 9
N10:0
N10:10
N10:20
N10:30
N10:40
N10:50
N10:60
N10:70
Serial Communications
Control Flags
BT Length
BT Logical Address ①
2 3 4 5
0
Logical Rack 2, Group 4, Slot 0 = 240
Message Length
PLC Decimal Value
Number of Parameter Values to Read
Starting Parameter Number
2 3 4 5
11 1
Address
M0:1.100
M0:1.110
M0:1.120
M0:1.130
M0:1.140
M0:1.150
M0:1.160
M0:1.170
8-13
6 7 8 9
6 7 8 9
0 1 2 3 4 5 6 7 8 9