
PLC Programming Considerations
Appendix A
A-5
The following rung will constantly block transfer write to a PanelView
terminal.
Figure A.2
Block
T
ransfer Write Example (PLC5/15)
BTW
BLOCK TRANSFER WRITE
Rack: 2
Group: 0
Module: 1
Control Block: N7:5
Data File: N7:500
Length: 32
Continuous: N
Write
Enable
N7:5
/
15
(EN)
(DN)
(ER)
20238
The following rung will constantly block transfer read from a PanelView
terminal.
Figure A.3
Block
T
ransfer Read Programming (PLC5/15)
BTR
BLOCK TRANSFER READ
Rack: 2
Group: 0
Module: 1
Control Block: N7:0
Data File: N7:400
Length: 32
Continuous: N
Read
Enable
N7:0
/
15
(EN)
(DN)
(ER)
Read
Done
N7:0
13
(EN)
(DN)
(ER)
20239
FAL
FILE ARITHMETIC/LOGICAL
Control: R6:6
Length: 32
Position: 0
Mode: ALL
Dest: #N14:00
Expression:
#N7:400
Move Read File to Verified" Read File
The PLC program should use the “verified” read data.
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