Title: +038=360.012-#####._06-BA-ESR NI-DV Controller Nicotra Gebhardt - Operating Instruction.pdf
colour LED which operating status.The LEDislocated onthe underside of NI-DV beside the entry for the mains cable. See fig. 5-3.Fig. 5-3:o Lights constantly green when mains voltage is connected o Flashes green when Modbus communication is active o Lights constantly red when at least one critical alarm is active o Flashes red when at least one non-critical alarm is activeDE-25/36BA-ESR_NI-DV 1.0 – 11/2015English6. Maintenance and troubleshooting6.1. Modbus addressing of NI-DVModbus addressing of NI-DV can be accomplished in two different ways. • Via the addressing pins of the ”A” or ”B” connectors – see fig. 3-13.1 andtable 6-1.Table 6-1:= No connection between ”GND” and Add.Pin1/ Add.Pin2= Connection between ”GND” and Add.Pin1/ Add.Pin2 • Via OJ-DV PCTool, where NI-DV can be set to other Modbus addresses– see instructions for OJ-DV PCTool.Modbus protocol • Contact Nicotra Gebhardt GmbH if you require a complete Modbusprotocol.6.2. Maintenance