Spirax Sarco B850-W-2 Guia De Inicio Rapido página 42

10.35 4-20 mA output and other settings
Click on relay outputs.
Select required serial communication protocol (ASCII, GSM, Modbus RTU, BACnet) and
parameters.
Communication with a computer system.
The unit can be connected to the master computer system by:
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Built-in serial RS-485 port; available is ASCII own protocol, Modbus RTU protocol and
BACnet MSTP.
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Ethernet port, available is web server, Modbus TCP protocol and BACnet IP.
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In addition, the RS-485 port can be used to connect the GSM module, it enables transfer
of information about failures, alarms and measurement values in the form of SMS text
messages.
For further details on the Sections listed and for functions 'Media and Characteristic Manager'
and 'Administrative Data', see B850 Boiler House Energy Monitor Installation and Maintenance
Instructions IM-P408-03.
42 IM-P408-04 AB Issue 2