Factory Settings; Writing New Parameters - WIKA GD-20 Series Operating Instructions Manual

5. Commissioning, operation
After wiring and installing the software of the interface converter or copying the
Modbus tool software, the program can be started.
®
System requirements
EN
At least Microsoft
Windows is a registered trademark of Microsoft Corporation in the United States and other countries.

5.4.2.1 Factory settings

The COM port allocated by the interface converter on the PC must be set for access
to the gas density sensor. Upon delivery, the address is set to 247 and the baud rate is
configured to customer specification.
With these settings, the gas density sensors can be read via the button "Read from
instrument".
Configuration
Tag number: WIKA
■
Address: 247
■
Baud rate: Customer-specific
■
Parity: Customer-specific
■

5.4.2.2 Writing new parameters

Take note of the new communication parameters before writing them, as the parameters
will be required again for any new access to the gas density sensor.
Write the new values in the right fields (below the button "Write on instrument").
Designation
Tag number
Address
Baud rate
Parity
By pressing the button "Write on instrument" the data in the fields is transmitted to the
instrument register. To finish the writing operation, interrupt the voltage supply of the gas
density sensor after the transmission before restoring it.
Afterwards, during the reading operation, the entered data becomes visible on the left-
hand side.
18
Windows 7 (32-bit)
® ®
If Windows is used with non-Latin character sets (e.g. Chinese), the area
®
settings of the system control must be changed to English (USA), since
otherwise, communication problems might occur.
WIKA operating instructions gas density sensor, model GD-20
Valid values
16 characters in ASCII code
1 ... 247
1,200 ... 115,200
None, even