Rockwell Automation 1791R-XXXX CompactBlock RIO User Manual
Compact block distributed i/o on remote i/o, Installation instructions
 
Publication 1791R-IN001A-EN-P - February 2002
Installation Instructions
CompactBlock Distributed I/O on 
Remote I/O
(Cat. No. 1791R-16B0, -0B16P, -8B8P, -4B4P, -8V8P)
1791R CompactBlock™ I/O modules are stand-alone 24V dc Block 
I/O products that communicate via a Remote I/O link. Each Remote 
I/O node consists of either one base module or one base module and 
one expansion module. Any expansion module can be coupled with 
any base module. CompactBlock 1791R consists of only base 
modules. The expansion modules are part of the CompactBlock 
1791D family of products. 
CompactBlock Remote I/O modules must be installed in a secondary 
enclosure. Base modules are equipped with 8 to 16 points. 
CompactBlock Remote I/O provides both sinking and sourcing 
inputs and outputs. Sinking inputs are 24V dc NEMA Type 3 
compatible. Self-protected 24V dc outputs can provide up to 0.5 amp 
each. 
Important User Information
Because of the variety of uses for the products described in this 
publication, those responsible for the application and use of these 
products must satisfy themselves that all necessary steps have been 
taken to assure that each application and use meets all performance 
and safety requirements, including any applicable laws, regulations, 
codes and standards. In no event will Allen-Bradley be responsible or 
liable for indirect or consequential damage resulting from the use or 
application of these products.
Document Outline
- CompactBlock Distributed I/O on Remote I/O Installation Instructions
- Important User Information
- Installing CompactBlock I/O
- Set the Node Address on the Base Module
- Mount the Block(s)
- Connect the Input/Output Wires to the Block
- Connect the Remote I/O Terminal Connector
- Select Termination for the Module
- Connect Power to the Module
- Remove the Terminal Block
- Insert the Terminal Block
- Communicate With the 1791R Module
- Troubleshoot with the Indicators
- Specifications
- Hazardous Location Approval
 
- Back Cover