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VACON® 1000 Fieldbus Options
Operating Guide
3 Modbus RTU/TCP
3.1 Cable Selection
The maximum allowed length of a single CAT5 Ethernet cable is 100 m.
The maximum length of an RS485 cable depends on the bitrate used, the cable (gauge, capacitance, or characteristic impedance)
and the number of devices in the bus. The Modbus RTU specification states that the maximum cable length is 1000 m when using
maximum 9600 bit/s bitrate and AWG26 or wider gauge cable. The actual cable length which can be used in an installation can be
lower than this number depending on the previously mentioned parameters.
3.2 Programming
3.2.1 Ethernet Setting
For basic information on how to use the HMI, see the VACON® 1000 Application Guide or Operating Guide.
Procedure
1.
To enter the Ethernet Setting window, select Setup & Service → Commissioning → Ethernet Setting.
2.
Set the Ethernet address and click Save.
Illustration 5: Ethernet Setting Window
14 | Danfoss A/S © 2023.09
Modbus RTU/TCP
AQ454734633756en-000101 / 172K1112
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