Rockwell Automation 1785-LTx,D17856.2.1 Classic PLC-5 Programmable Controllers Users Manual - Manual (Page 109)

Transferring Discrete and BlockĆTransfer Data
Chapter 8
8-14
Figure 8.9
Example Block Transfer in PLCĆ5/250 Supervisory Processor
EN
BTR
BLOCK TRANSFER READ
RACK
GROUP
MODULE
CONTROL BLOCK
002
0
0
BR020:0
DN
DATA FILE
BT LENGTH
1BTD1:0
0
ER
PLCĆ5 adapterĆmode processor in rack 2
CONTINUOUS N
EN
BTW
BLOCK TRANSFER WRITE
RACK
GROUP
MODULE
CONTROL BLOCK
002
0
0
BW020:0
DN
DATA FILE
BT LENGTH
1BTD2:0
0
ER
CONTINUOUS N
BT TIMEOUT 3
BT TIMEOUT 3
FILE ARITH/LOGICAL
CONTROL
LENGTH
1R0:0
64
BTR Done Bit Data Not Valid Bit
BR020:0
DN
I:020
10
POSITION
MODE
0
ALL
DEST
EXPRESSION
#1N0:0
1BTD1:0
EN
DN
ER
FAL
READ DATA FROM ADAPTERĆMODE PROCESSOR
SEND DATA TO ADAPTERĆMODE PROCESSOR
BUFFER READ
DATA FROM
ADAPTERĆMODE
PROC TO
WORK AREA
BR020:0
EN
BWO20:0
EN
BR020:0
EN
BWO20:0
EN