Operating Manual
ARS31(Pro)-UMB
G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany
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6.3 Firmware update
The description of the firmware update can be found in the instructions for the UMB
configuration tool.
New firmware is uploaded via the RS485 interface. It is not necessary to open the housing
for this purpose. However, firmware uploads must take place at a temperature between 0
and 60°C. The update is controlled by means of PC software.