20
WIKA operating instructions, model GDM-100-T
EN
14535893.01 01/2022 EN/DE
Modbus
®
RTU (RTU: Remote Terminal Unit) transmits the data in binary form, guaran-
teeing a good data throughput.
Detailed information on the protocol under www.Modbus.org
5.5 Modbus
®
start-up kit
The gas density sensor, with the optionally available start-up kit (order no. 14075896),
can be configured for operation at the measuring location.
A further function is an integrated data logger, showing measured data in a specific
cycle or writing it in a file.
The start-up kit consists of:
■
Power supply unit
■
Interface converter (RS-485 to USB)
■
USB cable type A to type B
■
Sensor cable with M12 x 1 connector
■
Adapter cable for models GDM-100-T and GDM-RC-100-T
■
Modbus
®
tool
5.5.1 Establish connection to the PC
5.5.2 Modbus
®
tool
The software is available, free-of-charge, from the WIKA website.
After wiring and installing the software of the interface converter or copying the
Modbus
®
tool software, the program can be started.
System requirements
At least Microsoft
®
Windows
®
7 (32-bit)
Windows is a registered trademark of Microsoft Corporation in the United States and other countries.
RS-485
USB
+
-
Interface converter
Voltage supply
5. Commissioning, operation
