willburg Posted July 31, 2012 Report Share Posted July 31, 2012 Hello, I'm having a problem with the Jazz. I want to communicate with a few Omron MX2 inverters jusing Modbus. In the old situation i use a Omron PLC and this works ok. Now we want to convert our machines into Unitronics powered machines. I want to send the position,start/stop,frequention,and counter clear to the inverter. We make some simple position tasks with this inverter so there is a encoder directly to the inverter. So it is possible to send a position to the inverter with modbus and the inverter calculate the position. Now a cant get any connection between the Jazz and the inverter. I use the rs485 com port for the connection between the inverter and plc. Here are the parameters from the Omron plc: This is to send the frequenty to the inverter. move/store: node nr. #1 move/store: function code #10 move/store: number of bytes &7 Move/store : register #1 move/store : aantal registers #1 Move/store : number of bytes+data #0200 tranfer bit : #808 control word frequenty 500 dec. uint tranfer bit : #808 control word frequenty 500dec. uint Here you can download the user manual for the inverter. http://downloads.industrial.omron.nl/IAB/Products/Motion%20and%20Drives/Frequency%20Inverters/Pumps%20&%20Fans/MX2/I570/I570-E2-01-X%2BMX2%2BUsersManual.pdf Page 303 are the modbus registers. Also a problem the registers are in Hex and i cant fill in hex numbers into the Jazz. I hope you can help me,its the last Omron machine we built so we want to go Unitronics. Regards Leon Quote Link to comment Share on other sites More sharing options...
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