750 XTR Series
Planning
32
System manual | Version: 2.0.0
5
Planning
5.1 Node Structure
Note that product-specific configuration or test steps may be necessary. For example be-
fore:
• Commissioning
• Recommissioning
• Exchange and replacement of I/O modules
These configuration or test steps are described in the respective
&
Product Manual
.
Types of Components
Several different types of components are used in the I/O system:
•
Head Stations:
– PFC
– Controller
– Fieldbus couplers
•
I/O Modules:
– Analog input and output modules
– Digital input and output modules
– Function and technology modules
– Communication modules
– Supply and segment modules
Node Configuration
A node configuration consists of at least the following:
• A head station
• A power supply
• An end module
Structuring a Node
When planning a node, please take the following into account:
• Grouping by potential group
• Use of distance modules to visually differentiate the potential groups
For easy, convenient planning, use the WAGO Smart Designer configurator.
Number of I/O Modules
The maximum number of I/O modules that can be operated in one node depends on sev-
eral factors:
•
Mechanical expansion:
The distance between a head station and an end module must not exceed 768 mm, in-
cluding the end module. If a node is wider, it must be divided into multiple sections with
an additional head station.
•
Addressability:
Up to 64 I/O modules can be addressed, depending on the head station.
I/O modules that do not have any process or diagnostic data (e.g., distance modules)
do not need to be taken into account when calculating the number.
