Rs-485 Communications; Connections - Circutor AFQm IP54 Serie Manual De Instrucciones

AFQm IP54

8.- RS-485 COMMUNICATIONS

AFQm IP54 devices have an RS-485 serial communication output with the MODBUS RTU ® commu-
nications protocol.
For an installation with devices in parallel, the RS-485 connection can be made on any device.

8.1.- CONNECTIONS

The RS-485 cable must be wired with twisted pair cable with mesh shield (minimum 3 wires), with a
maximum distance between the AFQm IP54 and the master device of 1200 metres.
A maximum of 32 AFQm IP54 filters can be connected to this bus.
To establish communications with the master device, use an RS-485 intelligent converter.
RS-485
The RS-485 communications configuration in AFQm IP54 models is set to a baud rate of 9600 bps, 8
data bits, 1 stop bit and no parity.
Instruction Manual
A B S
Figure 69: RS-485 Connection diagram.
PC
RS-232 / USB / Ethernet / Profibus ...
RS-232
USB
Ethernet
Profibus
...
RS-485
S B(-) A(+)
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