User manual

Publication 1747-UM011F-EN-P - May 2007
Wiring Your I/O Modules 121
Using the Removable
Terminal Block (RTB)
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 modules
and the RTB are color-coded.
Replacement terminal blocks are available if they are lost or damaged.
See the replacement part list in chapter 11.
Remove the RTB
Below are guidelines for removing the I/O Removable Terminal
Block.
1. If the I/O module is already installed in the chassis, remove
power to the SLC chassis.
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. Label the RTB with appropriate slot, chassis, and module
identification.
Color Type of I/O Removable Terminal Block
Red ac inputs/outputs
Blue dc inputs/outputs
Orange relay outputs
Green specialty modules
ATTENTION
Never install or remove I/O modules or terminal blocks while
the SLC chassis is powered.
Terminal Block
Release Screw
Terminal Block
Release Screw
Dot indicates Terminal Number 0
(or top of I/O wiring).