Before you begin, Calculate power supply requirements – Rockwell Automation 1771-IBN DC (10-30V) INPUT Module Installation Instructions User Manual
Page 6
 
6 DC (10...30V) Input Module
Publication 1771-IN028D-EN-P - October 2008
Before You Begin
The 1771-IBN series C DC input module is a sink input and requires a source output. A sink 
input provides a path to ground and a source output provides a positive voltage path.
You must use this module in a 1771-A1B through 1771-A4B or later 1771 I/O chassis. Refer 
to the table for processor compatibility. 
Do not place this module in the same I/O chassis as the 1771-IX thermocouple module. You 
can use this module in the same chassis as the 1771-IXE thermocouple module.
This module has input filtering to limit the effect of voltage transients caused by contact 
bounce and/or electrical noise. Specifications for input filtering are listed in the specifications 
section of this document.
Calculate Power Supply Requirements
Your module receives its power for internal logic circuitry through the 1771 I/O chassis 
backplane from the chassis power supply. The module requires 280 mA from the output of 
this supply. 
To calculate the requirements for the backplane power supply, add 280 mA to the power 
requirements of all other modules in the I/O chassis. Calculating the requirements prevents 
an overload to the chassis backplane and/or backplane power supply.
Processor Capability
System Type
Use with Processors
Cat. No.
Local
Mini-PLC-2/02
Mini-PLC-2/16
Mini-PLC-2/17
PLC-5/15, series B and later
1772-LZ, 1772-LZP
1772-LX, 1772-LXP
1772-LW, 1772-LWP
1785-LT
Remote with a 
1771-ASB 
remote I/O 
adapter 
PLC2/20
PLC-2/30
PLC-3
PLC-3/10
PLC-5/15, series B and later
1772-LP2
1772-LP3
1775-L1, 1775-L2, 1775-L3, 1775-L4
1775-LP4, LP8
1785-LT