User Manual
Section 1
GFK-2958L
May 2021
Introduction
6
1.4
General Description of the Fieldbus Network
Adapters
A fieldbus network adapter is used to connect the station I/O modules to the fieldbus. All
the data traffic with the programmable logic controller including the diagnostic messages
is exchanged via the network adapter. The integrated power supply provides the network
adapter and all connected modules with power.
A detailed description of the individual network adapter types is available under Detailed
Descriptions of the Fieldbus Network Adapters
Figure 1: Features of the Fieldbus Network Adapters
Fieldbus Network Adapter (Example: EPXPNS001)
1.
Catch lever for securing the DIN rail
2.
Rotary switch (only PROFIBUS
®
)
3.
Data line connection (e.g. SUB-D socket)
4.
Seats for module markers
5.
Type designation
6.
Optional: swivel marker for labelling modules and channels
7.
Connector frame unlocking device
8.
LED power supply network adapter
9.
Network adapter status LEDs
10.
Power supply connector for the system and input modules
11.
Power supply connector for output modules
12.
Service flap
13.
Latching hook for latching onto module sides
14.
System bus
15.
System current path
16.
Input current path
17.
Type plate with block diagram
18.
Output current path
