if field commnictor 475 does not communicate with transmitter
what will you do ?
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Answer Posted / abu maryam
In my opinion there are several causes of this problem:
1- Check the power source if it 24 volt or not.
You should disassemble the power source if it is 24 on out side and still 24 after connecting to device this mean that the power source is good but if it is 24 volt out side and zero after connecting this mean there is found problem in power source (may be problem in module).
2-Read device data if it support hart protocol or not.
3-Disassembled device and connect separate power source and connect 250 ohm series if it no benefit added change the resistance from 250 to 1000 ohm and try or disassemble the resistance and power source and apply power source from multi function calibrator which has internal resistance then try to connect.
4-May be device support hart but hart property is disabled by definite internal jumper in device so we should change this jumper according to device manual.
5-May the device support hart its data files is not added to hart communicator for 1 of the following 2 reasons:
the first:hart communicator is not updated.
The second:the device data filed is not added to hart communicator and it need its special programs and its special cable as found in foxporo transmitters.
6-May the connectors or cables has problem so use another cable.
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