Rockwell Automation 1747-ACNR15 ControlNet Adapter Module User Manual - Manual (Page 124)

Publication 1747-UM003A-EN-P
B-32 Understanding Your SLC 500/1746 Control System
Using Removable Terminal Blocks
The Removable Terminal Block (RTB) is provided on all 12-point and
16-point discrete I/O modules and analog modules. They allow for faster and
more convenient wiring of the I/O modules. The RTBs and modules are
color-coded as follows:
Replacement terminal blocks are available if they are lost or damaged.
Removing the RTB
Below are guidelines for removing the RTB.
1. If the I/O module is already installed in the chassis, disconnect power.
2. Unscrew the upper right and lower left terminal block release screws.
3. Grasp the RTB with your thumb and forefinger and pull straight out.
4. Write the appropriate slot, chassis, and module type on the RTB label.
Table B.4 RTB Color-Coding Definitions
If the color is: Then the RTB is for:
red ac inputs/outputs
blue dc inputs/outputs
orange relay outputs
green specialty modules
black These I/O wiring terminal blocks are not removable.
ATTENTION
!!!!
Disconnect power before attempting to install or remove
I/O modules or their terminal blocks.
SLOT______RACK______
w MODULE______
Terminal Block
Release Screw Terminal Block
Release Screw
Dot indicates terminal
number 0 (or top of I/O
wiring).