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| Tonghui TH2830 LRC meter serial port, HOW ? BRAKE THRU, ALIVE |
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| oz2cpu:
great idea.. i rebooted many times, not a glitch that could look like a serial byte seen.. but i got a few ideas now, i will try to switch it into usb mode, and then back to serial, maybe it is stuck in odd configured state some how |
| Martin72:
--- Quote from: Martin72 on May 31, 2022, 10:13:55 pm ---Nevertheless, I could call the german support and ask them for the RS232 interface(not mentioned in the manual), would post the answer here. --- End quote --- I got an answer today. Well...It won´t help a lot, but I tell it here. The RS232 interface you can reach with the software ST4 and you can run SCPI commands via it. Then they tell me to use a datacable with crossed connections (RX,TX) and obey the baudrate (9600 or 19200). That was it from them, I can do some tests when we got our LCR back from calibration in the next week. Martin |
| oz2cpu:
thanks a lot, I only tried 9600 8n1 scpi mode i crossed the signals, verified with scope the tx signal is not connected to the other side tx, of course. no reply on *idn? and nothing come out in talk only mode I also tried to wire all handshake signals as explained in the rs232c documentations found online 2-3 rx-tx 3-2 tx-rx 5-5 gnd on the TH2830 side i tried 4 to 6 and 7 to 8 and also 1-4-6 , 7-8 connected together as suggested by many sites still no luck, so i feel we need some one else to please try too, please folks ? I had the idea so many people had this unit ? or the ST2830 |
| Martin72:
In the answer, they told me also something I don´t understand: --- Quote ---Pay attention to CR and LF when transmitting and receiving. --- End quote --- :-// Our ST2830 should arrive next tuesday/wednesday. |
| oz2cpu:
>Pay attention to CR and LF when transmitting and receiving. dont we just love help like that ?? |
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