wtw TresCon UNO A111, Operating Manual

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TresCon UNO Appendix
8 - 21 ba43134e08 05/2017
TresCon RS485 settings All measuring transmitters / TresCon UNO on the RS485 bus must be
configures as slaves. The transmission parameters for this are perma-
nently set to 9600 baud, 8 bits, no parity. An extra address must be
selected for each slave.
The last instrument on the BUS must provide the terminating resistor.
If only one instrument is used, this is also the last instrument and must
provide the terminating resistor. Further information on wiring, configu-
ration and the record can be found in the chapter RS485 of the opera-
ting manual (section 8.3.1 H
ARDWARE
).
The PKV 30-DPS converter carries out the hardware adjustment of the
two bus systems as well as the implementation of the record.
List of the
PROFIBUS commands:
1.) Query of the measured values
Command: T1PBGCONC
Response: <Date> <Time> <Measured value> <Unit> <Citation form> <CR> <LF>
Example:
15.11.02 17:05:23 23.5 mg/l PO4-P
2.) Query of the instrument status
Command: T1PBGSTATUS
Response: <Instrument status> <CR> <LF>
Examples:
Stop
AutoClean
AutoCal
Measuring
The answers depend on the connected module and on the adjusted language.
3.) Query of the last valid calibration data
Command: T1PBGCAL
The response is a value table that corresponds to the calibration record:
NH4-N module:
Response: <Date> <Time> <StdA> <Ua> <StdB> <Ub> <Srel> <U0> <S> <CR>
<LF>
Example:
13.11 07:57 5.00 -78.0 50.00 -138.0 1.00 -0.0 -60.0
As the length of the response is limited to 61 bytes, the block temperature and calibra-
tion mode are not output.
NOx-N module and NOx-N/SAK module:
Response: <Date> <Time> <E1H2O> <E2H2O> <CR> <LF>
Example:
15.11 13:31 27.56 -48.53