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16
80290C_MHW_2400_0908_ENG
RS485 2-wires (standard)
Termination strength 120
Ω
line can be
inserted via jumper S3 closed, S2 open
Polarization can be inserted via jumpers
S4, S5 closed
(S6, S7, S9 closed, S8 open)
30
31
32
33
GND
A (data +)
B (data -)
RS485 4-wires
termination strength 120
Ω
line can be
inserted via jumper S3 closed (Tx) and
S2 closed (Rx)
Polarization can be inserted on Rx via
jumpers S4, S5 closed
(S6, S7, S9 open, S8 closed)
30
31
32
33
Rx -
Tx +
Tx -
Rx +
28
29
+
0/2...10V, ±10V, max. 25mA protection against short circuit
0/4...20mA, on load max. 500
Ω
Select type by means of configuration parameter.
Retransmission output
Electrical Connections
(for all models)
Serial line - MODBUS
12
13
~
~
PWR
Standard: 100...240Vac/dc ±10%
Optional: 20...27Vac/dc ±10%
Power: max 20VA; 50/60 Hz
Power supply
RS232
30
31
32
33
GND
Tx
Rx
J1
J2
J24
J25
J26
J27
J28
J29
J30
J31
J32
J33
S2 S3 S4 S5
S6 S7 S8 S9
SER/W Board
SER/W Board