Connecting the sensor to Prism Three-phase
For three-phase Prism, the sensor must be connected as follows:
Connection marking
Connection marking
A+ RS485
A+
B- RS485
B-
GND
G
Terminating resistors:
The
120 ohm terminating resistor
is connected to the end of the cable at the meter
terminals. Inside Prism, check that the jumper on the right-hand side of the connector is
correctly installed.
Cables:
●
The communication line is RS485 at 9600bps
●
The length of the cables should not exceed 200 metres
●
Use a
twisted and shielded twisted pair, with GND conductor, with a
recommended cross section of 0.25-0.5 mm2.
For distances less than 100 m, a pair of CAT5 cable or similar can be used. Preferably,
choose a cable suitable for RS485/Modbus communication.
18
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Prism SOLAR rel. 2.2.2
Содержание PRISM SOLAR RFID
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