Serie 750, 753
System Features
System manual | Version: 3.0.2
17
3.1.4 Product Identification
3.1.4.1 Versions
Color Coding for Identifying the Component Type
To get an overview of the different I/O components quickly and easily, they are color-
coded.
Table 2: Color coding of Component Types
Housing Color
Component Type
Light gray
WAGO I/O System 750 (standard modules)
Blue
Intrinsically safe modules (Ex i)
Signal yellow
Modules for functional safety
Blue + signal yellow
Intrinsically safe modules (Ex i) for functional safety
Dark gray
WAGO I/O System 750 XTR
Blue + dark gray
WAGO I/O System 750 XTR – intrinsically safe modules (Ex i)
Color Coding for Identifying Functionality
To quickly and easily get an overview of the component classes present in a node, they
are color-coded. The color coding is implemented as follows:
• Housings with up to 4 round display elements have permanently built-in, color-coded,
pull-out labeling fields.
• Housings with 8 display elements can be color-coded by attaching labeling elements
(Mini-WSB) over the display elements.
• For housings with 16 display elements, they are highlighted in color.
Table 3: Color coding of component classes
Color of the Coding Key
Component Class
Green
Analog Inputs
Blue
Analog Outputs
Yellow
Digital Inputs
Red
Digital Outputs
Transparent
Supply Modules, Function and Technology Modules
