Rockwell Automation 1785-LTx,D17856.2.1 Classic PLC-5 Programmable Controllers Users Manual - Manual (Page 110)

Transferring Discrete and BlockĆTransfer Data
Chapter 8
8-15
AdapterĆMode Processor (PLCĆ5/12, Ć5/15, and Ć5/25)
Follow these guidelines when programming block-transfer instructions in
the adapter-mode processor.
Use 3 for the rack, 0 for the group, and 0 for the module.
Set the continuous bit for continuous operation.
Condition the use of BTR data with status bits from the
supervisory processor.
Figure 8.10
Example Block Transfer for a PLCĆ5/12, Ć5/15, or Ć5/25 Processor in
Adapter Mode
EN
BTR
BLOCK TRNSFR READ
RACK
GROUP
MODULE
CONTROL BLOCK
3
0
0
N7:10
DN
DATA FILE
LENGTH
N7:100
40
ER
U
N7:15
12
N7:15
15
U
N7:10
12
N7:10
15
CONTINUOUS Y
EN
BTW
BLOCK TRNSFR WRITE
RACK
GROUP
MODULE
CONTROL BLOCK
3
0
0
N7:15
DN
DATA FILE
LENGTH
N7:200
8
ER
CONTINUOUS Y
BTR Error Bit
BTW Error Bit
BTR Enable Bit
BTW Enable Bit
COP
COPY FILE
SOURCE
DEST
LENGTH
#N7:100
#N7:300
40
13
BTR Done Bit
N7:10 I:030
10
I:030
11
I:030
13
I:030
15
Status Bits
ACCEPT DATA FROM SUPERVISORY PROCESSOR
SEND DATA TO
SUPERVISORY PROCESSOR
BUFFER DATA FROM
SUPERVISORY PROCESSOR