
Publication 1794-6.5.11 - November 1997
4-2
Writing Configuration to and Reading Status from Your Module with a Remote I/O Adapter
Important: It is strongly recommended that you use IOCONFIG
Addendum to configure this module. The IOCONFIG
Addendum utility greatly simplifies configuration. If the
IOCONFIG Addendum is not available, you must enter data
directly into the data table. Use this chapter as a reference
when performing this task.
During normal operation, the processor transfers from 1 to 8 words to the
module when you program a BTW instruction to the module’s address.
Reading Data From Your
Module
Read programming moves status and data from the frequency input
module to the processor’s data table in one I/O scan. The processor’s user
program initiates the request to transfer data from the frequency input
module to the processor.
Mapping Data for the
Module
The following read and write words and bit/word descriptions describe
the information written to and read from the frequency input module. The
module uses up to 6 words of input data and up to 7 words of output data.
Each word is composed of 16 bits.
Frequency Input Module (1794-IJ2) Image Table Mapping
Module Image
I/O Image
Frequency Channel 0
% Full Scale or Acceleration Channel 0
Diagnostics
Input Size
Output Size
0 to 7 Words
1 to 6 Words
Frequency Channel 1
% Full Scale or Acceleration Channel 1
GS
1
F/A
1
WO
1
MPA
1
DIR
1
GS
0
F/A
0
WO
0
MPA
0
DIR
0
R
R
R
Reserved
FR
1
MPM
1
R
NOPTS
1
LF
FR
0
MPM
0
NOPTS
0
SSM
CF
Minimum Freq or Absolute Value of Acceleration Channel 0
Frequency Scaling Divisor Channel 0
Frequency Scaling Multiplier Channel 0
F/A
AS0
WOFM
0
IS
UP0
MPDM
0
MFST
0
ACT 0
IFI
0
IGI
0
WOFF
0
WOFG
0
Minimum Freq or Absolute Value of Acceleration Channel 1
Frequency Scaling Divisor Channel 1
Frequency Scaling Multiplier Channel 1
F/A
AS1
WOFM
1
IS
UP1
MPDM
1
MFST
1
ACT 1
IFI
1
IGI
1
WOFF
1
WOFG
1
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 ...