Hi all,
I need to control a NI 9145 EtherCAT chassis using TwinCAT as the Master. In short,
This setup [1] works:
Slot 1: NI 9476 (wired only 1x DO to a simple Solenoid Valve, VSup & COM to 24V supply)
Slot 2-8: Empty
This setup [2] doesn't work:
Slot 1: NI 9476 (same as setup [1])
Slot 2: NI 9375 (no wire at all, only slotted in)
Slot 3-8: Empty
I generated the TwinCAT ESI files using the NI Slave XML Creator, from NI Industrial Comm for EtherCAT 2023.
Based on those 2 setup case, I don't think there is any problem on the electrical side.
On setup [2], everything looks fine for me on the TwinCAT side, NI 9145 state can change to "OP" and I can set the Online value, but there is no change on the actual DO output. 9476 = sourcing output, so I'm expecting a 24V, which is present if I use setup [1]).
I can read the CoE online data, and can also use the AoE - Online tab to read them manually.
https://forums.ni.com/t5/image/serverpage/image-id/357407iD344B63133C2AFBD/image-size/medium?v=v2&px=400
Tried:
1. Wire the NI 9375 (setup [2]). The Digital Input worked just fine, but the Output didn't work (both NI 9375 & 9476).
2. Swap the modules with a spare, didn't work.
3. Swap slot 1 & 2 (with their respective ESI files), didn't work.
Anyone encounter similar problem, or have any experience using NI 9476 + 9375 together in NI 9145 chassis (maybe using cRIO as the master)?
Attached is the ESI file i used for 9476 + 9375.
Thank you.
Gabriel.
DO_DIO.xml
