Rockwell Automation 1771-IL/B , D17716.5.91 ISOLATED ANALOG INPUT Module - Manual (Page 5)

Using This Manual
Preface
P-2
Appendix Title Topics Covered
A Specifications
B Configuration Example
C Data Formats
Information on BCD, 2s complement binary, signed
magnitude
D
Block transfer with Mini-PLC-2
and PLC-2/20 processors
How to use GET-GET instructions
You can install your input module in any system that uses Allen-Bradley
programmable controllers with block transfer capability and the 1771 I/O
structure.
Contact your nearest Allen-Bradley office for more information about your
programmable controllers.
The 1771-IL series B module can be used with any 1771 I/O chassis.
Communication between the analog module and the processor is
bidirectional; the processor block-transfers output data through the output
image table to the module and block-transfers input data from the module
through the input image table. The module also requires an area in the data
table to store the read block and write block. I/O image table use is an
important factor in module placement and addressing selection. The
module’s data table use is listed in Table P.A.
Table P.A
Compatibility and Use of Data Table
Use of Data Table Compatibility
Catalog
Number
Input
m
Output
m
Read-
ck
Write-
ck
Addressing
Chassis mb
Image
Bits
Image
Bits
Blocks
Words
Block
Words 1/2-Slot 1-Slot 2-slot
Chassis
Series
1771-IL/B 8 8 15 37 Y Y Y A, B
A = Compatible with 1771-A1, -A2, -A4
B = Compatible with 1771-A1B, -A2B, -A3B, -A4B
Y = Compatible without restriction.
Related Products
Product Compatibility