
Publication 1794-6.5.11 - November 1997
3-4
Programming Your Frequency Input Module
PLC-5/250 Processor
Block transfer instructions with the PLC-5/250 processor use a control
file and a data file. The block transfer control file contains the data table
section for module location, the address of the block transfer data file and
other related data. The block transfer data file stores data that you want
transferred to the module (when programming a BTW) or from the
module (when programming
a BTR).
The programming terminal will automatically select the control file based
on rack, group and module, and whether it is a read or write. A different
block transfer control file is used for the read and write instructions
for your module. A different block transfer control file is required for
every module.
EN
BTR
BLOCK TRANSFER READ
Rack
Group
Slot
Control
01
2
0
N22:200
DN
Data File
Length
Continuous
N22:101
0
N
ER
EN
BLOCK TRANSFER WRITE
Rack
Group
Slot
Control
01
2
0
N22:205
DN
Data File
Length
Continuous
N22:1
0
N
ER
N22:200
15
N22:200
15
N22:205
15
Rung 2:0
The IJ2 module is located in rack 1, I/O group 2, slot 0. The integer control file starts at N22:200, is 5 words long and is
compatible with all PLC-5 family members. The data obtained by the PLC-5 processor from the IJ2 module is placed in
memory starting at N22:101, and with the default length of 0, is 7 words long. The length can be any number between 0
and 7. In enhanced PLC-5 processors
, the block transfer data type may be used as a control file.
N22:205
15
Rung 2:1
The IJ2 module is located in rack 1, group 2, slot 0. The integer control file starts at N22:205, is a 5 words long and is compatible
will all PLC-5 family members. The data sent by the PLC-5 processor to the IJ2 module starts at N22:1, and with the default
length of 0, is 8 words long. Valid BTW lengths can be any number from 0 to 8. In enhanced PLC-5 processors , the block
transfer data type may be used as a control file.
IJ2 BTR
Enable Bit
IJ2 BTW
Enable Bit
IJ2 BTR
Control File
IJ2 BTR
Enable Bit
IJ2 BTW
Enable Bit
IJ2 BTW
Control File
PLC-5 Processor
Program Example
BTW
Enhanced PLC-5 processors include: PLC-5/11, -5/20, -5/3x, -5/4x, and -5/6x.
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1
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Содержание FLEX I/O 1794-IJ2
Страница 1: ...User Manual FLEX I O Frequency Input Module Cat No 1794 IJ2 Allen Bradley Allen Bradley Replacements ...
Страница 6: ...Publication 1794 6 5 11 November 1997 4 Using This Manual ...
Страница 19: ...Publication 1794 6 5 11 November 1997 1 10 Overview of the Frequency Input Module Allen Bradley Replacements ...
Страница 38: ...Publication 1794 6 5 11 November 1997 3 6 Programming Your Frequency Input Module ...
Страница 67: ...Publication 1794 6 5 11 November 1997 6 4 Troubleshoot the Frequency Input Module Allen Bradley Replacements ...