Actually Dmx controller is controlling 72 dmx programmable lights and 5 dmx controlled relay boards that is controlling the on,off of 72 solenoid valves ie relay controller is distributed among 72 solenoids.The Dmx controller updates its dmx outputs using the show that is programmed and stored in a memory card ie inserted inside the controller.The dmx controller has rs232 serial port on it and it accepts serial port commands that are simple ascii commands that can be used to start,stop,select shows and also get status of controller
commands are like i00,*00,>00
where I is ascii commands,00 is card address
This dmx controller is part of a fountain
the dmx controller needed to interfaced to a Scada through PLC which maybe siemens s7 400.
the consultant does not want it to be interfaced through serial communication card or by rs232 serial port commands he want to interface directly through modbus.
can you suggest a solution to this how this dmx controller can be interfaced.
consultants are sometimes stupid what to do
please help