Endress+Hauser Stamolys CA71NO, Operating Instructions Manual

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Wiring
19
The results (measured value+unit of CR) are output in the "Data memory Measured
values" menu.
The calibration results (measured value+unit of CR) are output in the "Data
memory-Calibration factors" menu.
!
Note!
• A null modem cable is required (not a crossed one).
• The analyser does not have to be configured for the interface.
The following commands can be sent from the PC, in order to read out data:
• "D" = Data memory-Measured values
• "C" = Data memory-Calibration factors
• "S" = Setup (parameter entry, configuration...)
• "F" = Frequency (current)
4.5 Post-connection check
Carry out the following checks after electrical connection:
Current output simulation:
1. Hold both arrow keys down (see "Display and operating elements" chapter) and connect the
analyser to the mains or switch the mains switch on (if available). Wait until the display "0 mA"
appears.
2. Check on your PLC, PCS or you data logger whether the current value is the same.
3. Press the
F
key. Browse to the next current values (4, 12, 20 mA, depending on the setting).
4. Check that the respective current values are also on your PLC, PCS or your data logger.
5. If the values are not there:
a. Check the terminal assignment for analogue output 1 or 2.
b. Disconnect the analogue outputs from your PLC, PLS or your data logger and repeat steps
14 with the restriction that you measure the current values at the terminals of the analyser
and not at the PLC, SPL or data logger.
If these current values are correct, please check your PLC, SPL, the data logger or the
electrical cables.
Device status and specifications Note
Is the analyser or cable externally undamaged? Visual inspection
Electrical connection Note
Does the supply voltage correspond to the data on the nameplate? 230 V AC / 50 Hz
115 V AC / 60 Hz
Are current outputs screened and connected?
Are the mounted cables relieved of tension?
Cable type properly disconnected? Guide power supply and signal lines
separately over the entire travel distance.
Separate cable channels are ideal.
Cable routing without scuffing or cross-overs?
Are power supply and signal lines connected correctly according to wiring
diagram?
Are all screw terminals tightened?
Are all cable entries mounted, tightened and leak-resistant?
Interference suppressor at the analogue output?
Current output simulation See procedure below