Specifications

System Configuration Introduction
Quick Start Guide for the MELSEC STlite Series 1 - 3
1.1.2 Identification of the Modules
Please note that the name of the module is not printed on the module. However, there are several
methods to identify a module.
Color coded group identification plate bracket
The pullout group marker carriers of the module offer an rough distinguishing mark.
ID number of the module
The ID number, which is unique for each type of module (see table 1-1), is printed on the front side of
the modules.
Fig. 1-2: The module type can easily be recognised by the color of the group marker carrier.
Color of group
identification
plate brackets
Type of module
Tab. 1-2: Color code of the STlite series
Yellow Digital input module
Red Digital output module
Green Analog input module
Blue Analog output module
Colorless
Special function
module
Encoder module
Counter module
Interface module
System module
Head station
Power supply module
Bus end module
Fig. 1-3: ID number at the front of a module
Group identification plate brackets