2.1.3 Dimensions
2.2 Communication (only MIB 8000C)
Suitable for SCADA systems, RS-485 serial output, and Modbus RTU protocol.
The communication port and protocol are RS-485 and Modbus RTU.
Communication
Comm Port
A
B
S
14
15
16
The terminals are A, B and S (14, 15, 16).
• A is differential data signal +
• B is differential data signal
• S is connected to a shield of twisted pair cables
The unit can handle up to 32 devices on the RS-485 bus. The maximum connection length is 1000 m. Conductors A and B should
be terminated with a 120 Ω (Ohm) terminating resistor at the end of the string. Use a baud rate of 9600 bps.
The MIB 8000C operates as server unit, and the client unit is normally a PC, PLC or a data collector of RTU. The communications
port of the client unit must have RS-485 port.
USB/RS-485 or RS-232/RS-485 converter can be used to convert signal for PC.
Use shielded twisted pair of cable AWG22 (0.6 mm
2
).
DESIGNER'S HANDBOOK 4189320063D EN Page 7 of 23
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