Technical data

8 Rockwell Automation Publication 1769-TD005I-EN-P - August 2014
CompactLogix Controllers Specifications
I/O Module Support - CompactLogix 5370 L1 Controllers
The CompactLogix 5370 L1 controllers offer an embedded I/O module and the option of using 1734 POINT I/O
modules as local expansion modules.
The embedded I/O module provides the following:
• 16 sinking 24V DC digital input points
• 16 sourcing 24V DC digital output points
To use 1734 POINT I/O modules as local expansion modules, keep in mind the following:
• Local expansion modules must be installed in the same system as the CompactLogix 5370 L1 controller.
• The modules are installed to the right of the controller.
• The maximum number of local expansion modules available depends on the controller catalog of that system.
Table 4
lists the number of 1734 POINT I/O modules the CompactLogix 5370 L1 controllers support. Each I/O
module’s minimum RPI is 1.0 ms and can be changed by 0.5 ms increments.
Table 4 - 1769-L16ER-BB1B, 1769-L18ER-BB1B, 1769-L18ERM-BB1B Controllers - Local I/O Module Support
Cat. No. Local 1734 POINT I/O Modules Supported, max
1769-L16ER-BB1B 6
1769-L18ER-BB1B 8
1769-L18ERM-BB1B
Local Expansion ModulesEmbedded I/O Module