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8 Startup
Startup with a JUMO mTRON T as the Modbus master
A JUMO mTRON T has no plug & play mechanisms. The settings of the digital interface of the JUMO
digiLine electronics must be made prior to connection with the JUMO DSM software in accordance with
the interface settings of the Modbus master.
•
Device address: The user assigns to the JUMO digiLine electronics a device address that identifies
it uniquely in the Modbus system. Duplicate device addresses are not allowed in a Modbus system;
otherwise, malfunctions result.
•
Baud rate: The baud rate of the JUMO digiLine electronics must match that of the Modbus master.
•
Data Format: The data format (data bits - stop bits - parity) must match the settings on the Modbus
master.
•
Minimum Response Time: The minimum response time provides an intentional response delay for
the digiLine electronics in order to solve timing problems in the bus communication with slow Modbus
masters. This setting can be changed if necessary.
The JUMO digiLine electronics are then configured on the PC via the JUMO DSM software. It is also
possible, with write access to configuration parameters in the Modbus address table, to change the con-
figuration parameters of the JUMO digiLine electronics. A detailed description of how the Modbus pro-
tocol is used can be found in the interface description.Operating manual for the JUMO DSM
softwareModbus interface description B 202706.2.0
When correctly wired and configured, the JUMO digiLine electronics start operating immediately after
the measuring or automation device to which it was connected is put into service.
8.1
Functional test
Functional check on the PC
The JUMO DSM software enables a sensor with JUMO digiLine electronics to be checked for proper op-
eration. The software provides the ability to display current measured values on a PC.
JUMO DSM software operating manual
Functional check on a JUMO AQUIS touch S/P
On a JUMO AQUIS touch S/P, a JUMO sensor with digiLine electronics is displayed as "linked" as soon
as it has been recognized correctly and set up. Further information can be found in the operating manual
and installation instructions of the JUMO AQUIS touch S/P.
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