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3 Device Description
3.4
Description
Device version RS485 interface for JUMO digiLine and Modbus RTU
This interface is used to connect to the JUMO digiLine bus system of the JUMO AQUIS touch S/P or to
a JUMO mTRON T with Modbus interface.
The plug & play support for the JUMO digiLine electronics simplifies sensor startup considerably. After
the JUMO AQUIS touch S/P is connected, the JUMO digiLine electronic components are configured au-
tomatically and ready for use immediately.
As an alternative to JUMO digiLine operation with plug & play support on the JUMO AQUIS touch S/P,
Modbus operation (Modbus-RTU) on the JUMO mTRON T with access to the measured data is also pos-
sible. In this case, the JUMO digiLine electronics are configured and calibrated on the PC (USB inter-
face) via the JUMO DSM software.
Temperature compensation
Temperature compensation is handled by the digiLine electronics. When JUMO sensors with an integrat-
ed temperature probe are used, the JUMO digiLine electronics can obtain the temperature compensa-
tion directly from the sensor. Alternatively, the compensation temperature can be transferred from the
digiLine master or a fixed temperature can be specified in the configuration of the JUMO digiLine elec-
tronics.
Calibration
The calibration of sensors with JUMO digiLine electronics can either be performed in the field on the
JUMO AQUIS touch S/P or at a laboratory workstation using the JUMO DSM software. The calibration
data are saved in the JUMO digiLine electronics of the sensor. The sensor calibration can therefore be
performed ahead of commissioning, so that the sensor with its JUMO digiLine electronics can then sim-
ply be mounted on the system. This reduces the plant downtime to a minimum when it becomes neces-
sary to replace the sensor.
Calibration timer
The JUMO digiLine electronics has a calibration timer which, after a set calibration interval has lapsed,
is able to trigger a reminder for the sensor calibration due for the relative cell constant on the master.
The calibration interval setting can be edited via the configuration menu of the JUMO AQUIS touch S/P
or using the JUMO DSM software. After each sensor calibration, the calibration interval is restarted.
The calibration timer is not active for calibrations of a temperature coefficient and temperature coefficient
curve.
Calibration logbook
The JUMO digiLine electronics contain a calibration logbook in which the last 10 calibration operations
are saved with the date, time, and calibration values. This logbook provides an overview of the calibra-
tion history of the sensor. The calibration logbook can be read-out either at the JUMO AQUIS touch S/P
or using the JUMO DSM software on the PC. There is no limit to the number of saved calibration logbook
entries for JUMO digiLine electronics in the JUMO DSM software.
Sensor information
Numerous data such as type information, operating data, information on measuring point identification
etc. are stored in the JUMO digiLine electronics. This information allows clear identification and optimal
management of each sensor. All these data can be viewed on the JUMO AQUIS touch S/P or using the
JUMO DSM software.
Sensor monitoring
To monitor the stress on the sensor from sensor cleaning, counters are implemented for CIP and SIP
cycles. CIP and SIP cycles are recognized automatically on the basis of the criteria specified in the con-
figuration for sensor monitoring. The counters for the CIP and SIP cycles each retain the number of
cleaning processes performed. The counter readings can be queried on the JUMO AQUIS touch S/P
14
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