[3G3JX communication to ACS550 (ABB's inverter)]

Dear all! I'm in trouble with ABB's inverter model ACS550-U1. I have read its user manual but still can't find which exactly frequency referency register. This's the first time I user an ABB's inverter so in a short time I can't do what I do with OMRON's inverter. If I use 3G3JX, to send a run command from PLC, I write the frequency value (resolution 0.1Hz) into register 0002 (freq referency reg) first, then I turn on coil 0001. Is it the same if I use ACS550-U1. In case it's the same, Please tell me which corresponding register. Thanks and best regard!

[Using ModbusRTU Easy Master Function to control Inverter 3G3JX?]

Thank PMCR, wiring, DIP switch in JX and CP1W-CIF11 are just the same as your picture, but it still doesn't work. May be I set up JX's parameters wrong. I can not find what I did wrong. In PLC's programme, setting page, tab Port 2, I set "serial gateway" and baud speed is 9600 with 1,8,1-N. Is there something else that I miss?

[Using ModbusRTU Easy Master Function to control Inverter 3G3JX?]

Eck, Just codes 03 and 10 is used to read and write registers. May be I find out what I made wrong. Many thanks for you supports.

[Using ModbusRTU Easy Master Function to control Inverter 3G3JX?]

Hi all! I'm a very new member of our forum (and in automation area too). I'm trying to use PLC CP1L (M CPU type) to control a inverter model 3G3JX. You know, the easiest way is using build in function ModbusRTU Easy Master, but I still can't make it work. Let me talk to you how I use this build in function so that you can help me out. I want to give a run command to inverter that its address is set to 01, so I inset these follow values to fixed DM: D32300 : #0001 D32301 : #0005 D32302 : #0004 D32303 : #0000 D32304 : #FF00 Then I kick up A640.00 ON using "SET" code. Before that I wrote a frequency value #500 into the "Frequency Referency Register" which its address is #0002h. D32300 : #0001 D32301 : #0006 D32302 : #0004 D32303 : #0001 D32304 : #0500 But there's nothing happened, and in the DM address D32502, I just saw #0080. I don't know why, everything is just ok but it didn't work. I show you the value of parameters that I set to inverter: A001 : 3 A002 : 3 B089 : 1 C070 : 3 C071 : 5 C072 : 1 C074 : 1 C075 : 1 C076 : 2 C077 : 0 C078 : 0 and somes... Would you please tell me why it didn't work? Thank you all!