Posted 31 Mar 2020 (edited) Hi all im back to trying to get my inverter to work but this time with modbus, from this post http://forums.mrplc.com/index.php?/topic/38445-controlling-mx2-inverter-without-modbus/ and im stumped, im sure its just one thing somewhere messing it up i have a cp1l-el20 with a cp1w-cif11 and a 3g3mx2 inverter and am attempting to control it via modbus, it is wired up as follows, sp+ to RDB+, sn- to RDA-, common to the plc pin and plc output pin 100.00 to logic input 1. im using 100.00 to put it into run mode the paremeters ive put in are a1=3,a2=1, a4=50, c070=3, c071=5,c072=1, c074=00, c075=1, b27=1. im using MOV to set my speed to d1001 attached is my inv002_refresh x31 fb thanks to any1 who can see my silly mistake Edited 31 Mar 2020 by Bobodopalus added info Share this post Link to post Share on other sites
Posted 1 Apr 2020 getting back on it this morning, i just set the error FB locations up and im constantly getting a busy flag Share this post Link to post Share on other sites
Posted 2 Apr 2020 just to add to this, ive been on the phone with omron for a long time changed the scanlist to #2 but still no luck, the person at omron had a go with my code with no luck until he changed the data area to W however when i applied this still no luck Share this post Link to post Share on other sites
Posted 8 Apr 2020 for anyone who finds this in the future, it eventually worked, i think it was clearing the settings which got it working in the end Share this post Link to post Share on other sites
Posted 8 Apr 2020 Congrats mate! You didn't give up. Can you enlighten us how you got it working after initial problems? Share this post Link to post Share on other sites
Posted 15 Apr 2020 omron support got it to work by changing the area id to W instead of D as well as changing the MOV to the new W address, for whatever reason that fixed it, he wasn't too sure why Share this post Link to post Share on other sites
Posted 9 Mar 2022 Hi All, I want to control MX2 Inverter with basic Modbus commands (32300...). Read holding registers and write frequency works nicely. I have a problem with the start / forward/ reverse / stop commands. 32300:1 , 32301:5 , 32302:4 , 35303:0001 (coil-hex), 35304:1 (run command) MX2 manual page 307 Please give me some information regard to this! Share this post Link to post Share on other sites