I/o module groups – Rockwell Automation 1771-IBN DC (10-30V) INPUT Module Installation Instructions User Manual

Page 11

DC (10...30V) Input Module 11

Publication 1771-IN028D-EN-P - October 2008

I/O Module Groups

Each module condenses two full-module groups (32 inputs) into each I/O chassis slot. For
example:

• module group 1 = inputs 00…17.
• module group 2 = inputs 00…17 (module group 2 represents the second set of

inputs).

In the graphic on the following page, note the following:

• Terminals 1…20 represent module group 1, with terminals 9, 10, 19, and

20 DC common.

• Terminals 21…40 represent module group 2, with terminals 29, 30, 39, and

40 DC common.

• Terminals on the left are even numbered 2…40 and terminals on the right

are odd numbered 1…39.

• If multiple power sources are used, do not exceed the specified isolation voltage.
• The arrow in the figure shows that actual wiring runs in this direction.

ATTENTION

Observe proper polarity with DC power connections. Reverse polarity or application of AC
voltage could damage the module.