Posted 6 Feb 2017 Hi everyone. I have a problem with adding SCU31 to my existing omron PLC CJ2M. I already modified my CJ2M PLC in IO table. I also already program my NS5. But NS5 didn't communicate with SCU31 and SD1 and RD1 indocator didn't blink. Can anyone help me? Is there any step that I missed? Thank you. Share this post Link to post Share on other sites
Posted 6 Feb 2017 Do you have the proper cable? You cannot use a standard serial cable. Check the NS manual, there is a cable pinout in the manual. Hope this will help. Share this post Link to post Share on other sites
Posted 7 Feb 2017 Hi gtsupport, thanks for your support. I use db9 male cable connect to scu31 and I connect refer to scu31 manual. Pin 1 SDA, pin 2 SDB, pin 6 RDA, and pin 8 RDB. But still not work. Share this post Link to post Share on other sites
Posted 7 Feb 2017 NS5 does not support RS422. You will need a RS422 to RS232 adapter if you have to use SCU31. Share this post Link to post Share on other sites
Posted 8 Feb 2017 Hi Jay. I knew it. But in NS5 box already has converter NSAL. So I use it. Share this post Link to post Share on other sites
Posted 8 Feb 2017 Hi Jay. I already cross the connection but still same. The RD indicator is blinking but not the SD indicator. Share this post Link to post Share on other sites
Posted 8 Feb 2017 1. What protocol are you using on NS5 port? 2. What protocol are you using on the SCU31 port? Share this post Link to post Share on other sites
Posted 9 Feb 2017 Hi Jay, I used NT Link (1:1) on both. Share this post Link to post Share on other sites