GF U1000 V2 Wallmount WM Instrucciones De Uso página 23

User Manual
5.8.1 Modbus connections
If fitted, the Modbus or MBUS output is available at the terminal blocks labelled IO1 1/01-04 terminals:
IO Terminal
IO4
IO3
IO2
IO1
NOTICE
For reliable operation of a Modbus network, the cable type and installation must comply with requirements in the Modbus
specification document:
"MODBUS over Serial Line Specification & Implementation guide V1.0".
https://modbus.org/docs/Modbus_over_serial_line_V1.pdf
This output is suitable for SELV circuits only.
For full immunity to electrical interference, the screen of the power/pulse output cable and Modbus cable should be connected to
Earth.
5.8.2 Modbus wiring diagram
Modbus wiring with spurs
Modbus Main
+V (+5V or +12V)
RS485+
RS485-
GND (0V)
Modbus
ISOL_GND
OUT_A
ISOL_GND
OUT_B
Spur Length
Cables of any specified length can be supplied to order
270Ω for +5V, 1 KΩ for +12V
120Ω
270Ω
- +
Isolated
0V
RS-485
U1000 V2
Optional Ground
- +
Isolated
0V
RS-485
U1000 V2
Electrical connection & outputs
120Ω
- +
Isolated
0V
RS-485
U1000 V2
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