Rockwell Automation 1785-LTx,D17856.2.1 Classic PLC-5 Programmable Controllers Users Manual - Manual (Page 107)

Transferring Discrete and BlockĆTransfer Data
Chapter 8
8-12
Figure 8.7
Example Block Transfer in PLCĆ3 Supervisory Processor
EN
BTR
BLOCK TRANSFER READ
RACK
GROUP
MODULE
DATA FILE
2
0
0
#B2:0
DN
B1:0
15
LENGTH
CONTROL
0
#B1:0 ER
BTR Done Bit
EN
BTW
BLOCK TRANSFER WRITE
RACK
GROUP
MODULE
DATA FILE
2
0
0
#B3:0
DN
LENGTH
CONTROL
0
#B1:0 ER
17
Read Request
EN
MVF
MOVE WITH FILES
SOURCE
DESTIN
COUNTER
MODE
#B2:0
#B4:0
C5
ALL
DN
15
LENGTH
POSITION
64
0
ER
BTR Done Bit Data Not Valid Bit
PLCĆ5 adapterĆmode processor in rack 2
B1:0
B1:0 I:020
10
READ DATA FROM ADAPTERĆMODE PROCESSOR
SEND DATA TO ADAPTERĆMODE PROCESSOR
BUFFER READ DATA FROM
ADAPTERĆMODE PROC TO WORK
FILE AREA