1592001440 XC645CX GB r3.4 31.10.2017.docx XC645CX 11/54
* The digital input 6 (25-26) requires the adapter CABCJ15 or CABCJ30 to be used.
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5.5.3 Additional function of the digital input 7 (27-28)
The digital input 7 can operate also as probe.
To enable this function set P4C as NTC or PTC.
5.6 Analog output connection
The controller supply up to 2 analog outputs, terminals, kind of output and functionality are shown
in the following table
AOC: Kind of signal (4-20mA/0-10V)
AOF: function
2AOC: Kind of signal (4-20mA/0-10V)
2AOF: function
5.7 How to connect monitoring system - RS485 Serial line
The XC645CX can be connected to a monitoring system thanks to the serial output.
To convert the TTL to RS485 signal, the XJ485CX has to be used.
The XJ485CX is a TTL/RS485 external converter. Insert it into the TTL receptacle to convert the TTL
output into a RS485 (+) and (-) signal for the monitoring system MODBUS_RTU compatible. (XWEB).
The Adr parameter is the number to identify each electronic board. Address duplication is not
permitted, in this case the communication with monitoring system is not guaranteed (the Adr is
also the ModBUS address).
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