5/11/2023 7:54 AM | |
Joined: 3/23/2021 Last visit: 3/8/2024 Posts: 6 Rating: (0) |
Hello, I have an issue with SM1231 AI4 (6ES7 231-4HD32-0XB0). I want to use 3 channels AI0, AI1 and AI2 - AI1 and AI2 are connected to devices that changes temperature measurement into 4-20 mA, AI2 is wired with angle detector, that also supports 4-20 mA. As in the picture that I've attached, on the right side we have working example - in TIA I can see measured mA value out of AI0, AI1 (temperature) changed into 4-20 mA (0 - 27648) and with multimeter I can see as with angle change, current changes in 4-20 mA range. But when I wire it as is shown on the left side, current drops - it changes in range ~4 - 6 mA, which corresponds to ~ 0 - 2800 values in %IW in TIA. I have tried changing voltage supply, but this is not the case, it works the same whole time. I have tried changing AI2 to AI1 - same. Of course all channels are set to "Current" measurement and "4-20 mA" current range. One thing I havent't try is to wire all AI1,2,3 (-) together. Do you think it would help? Or there is something else I am missing? Best regards, Attachmentai.pdf (263 Downloads) |
5/11/2023 8:15 AM | |
Joined: 6/19/2019 Last visit: 5/10/2024 Posts: 694 Rating: (73) |
Have you tried like this example |
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