Communication Guide, ©ComAp – March 2014 33
IGS-NT Communication Guide 03-2014.pdf
Some devices do not support the modbus function 16. In this case can be the access code
writen in controller as one register No. 46339 using the function 6. The access code has to
be the number in the range 0 to 65535.
Equipment
Ethernet cable to LAN, for point to point connection
between PC and controller use cross-wired cable
For more informations about ModBus implementation to ComAp controllers read the chapter ModBus
communication.
ModBus - Multiple gen-sets
RS485 – MODBUS
Controllers
Controller setup
(Setpoints/Comms settings group)
RS232(2) mode = MODBUS-DIRECT
RS232(2)MBCSpd = 9600, 19200, 38400, 57600
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