Communication Guide, ©ComAp – March 2014 94
IGS-NT Communication Guide 03-2014.pdf
*SNMP manager address is IP address of the device the TRAPs are addressed to.
Controller settings
IG/IS-NT
Comms settings: RS232(1) mode / RS232(2) mode* = MODBUS-DIRECT
Comms settings: RS232(1)MBCSpd / RS232(2)MBCSpd* = 57600
Comms settings: RS485(1)conv. / RS485(2)conv.* = ENABLED
* Second RS232/485 port available only in IG-NTC/EEC and IS-NT.
Hint:
The converter provides communication only with controllers (addresses) that are present on startup of
the converter. It means any controller powered-up later than the converter is not recognized and
supported.
The converters are supposed to work with IG/IS-NT controllers of standard line (version 2.1 and
higher), IC-NT and IL-NT controllers (standard branches).
Converter Modbus RTU Profibus
GE Digital Energy - P485 Modbus to Profibus Converter
For connection of 1-32 NT line controllers to a Profibus network
RS485 or RS232 physical layer for connection to the controller(s)
Full Profibus-DP slave functionality according IEC61158
244 bytes input data size (122 Modbus registers)
244 bytes output data size (122 Modbus registers)
416 bytes total
See deatils on the web page of the manufacturer:
http://www.gedigitalenergy.com/multilin/catalog/p485.htm
Converter settings
Use EnerVista software to setup the converter. It can be downloaded from the web page
http://pm.geindustrial.com/download/download.asp?id=p485&file=1.
To configure the converter in the Profibus network, download the description file
http://www.geindustrial.com/products/software/d485/P48509E5.zip and import it to the
Profibus configuration tool.
Follow instructions in the P485 manual while configuring the converter. The setup wizard
incorporated in the Enervista software will make the setup process much easier, but finally some
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