3. Installation
22
Diagram Notes:
1. Ethernet interface pattern 10/100Base-TX for programming, debugging and MODBUS TCP
network connection or other protocols.
2. Serial interface pattern RS-485/RS-422 for MODBUS RTU network connection or other
protocols. The physical interface choice depends on the cable used.
3. The grounding from the external power source is connected to the terminal . Use 0,5 mm²
cables
4. The power supply is connected to terminal 0 V. Use 0.5 mm ² cables
5. The module feeds the other modules of the Nexto Series through rack connection
6. The module is grounded through Nexto Series backplane rack
NX3010, NX3020 and NX3030
The NX3010, NX3020 and NX3030 CPUs energy supply come from the Power Supply Module
which supplies the CPUs power through the backplane rack connection. It does not need any external
connection. The module grounding is given through the contact between the module grounding
spring and the backplane rack.
The Figure 3-3 shows the Nexto Series CPUs electric diagram installed in a Nexto Series backplane
rack.
The connectors placement depicted are merely illustrative.
Figure 3-2. NX3010, NX3020, NX3030 CPUs Electric Diagram
Diagram Notes:
7. Memory card interface.
8. Ethernet interface pattern 10/100Base-TX for programming, debugging and MODBUS TCP
network connection or other protocols.
9. Ethernet interface pattern 10/100Base-TX for MODBUS TCP network connection or other
protocols (only for NX3020 and NX3030).
10. Serial interface pattern RS-232C for MODBUS RTU network connection or other protocols.
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General