Time: 6/28/2017 7:57:47 PM

We have ace USB-SC-09 that USB-SC-09 we want to use to control the PLC with an upper PC program, but how can the routine in the letter manual fail to meet the requirements?
For example: manual jy997d19701d.pdf on page D-58. example 2, PC machine send 0530304646525330 4331, but serial port receive 15 (NAK)

Hello：
To sum up, confirm the hardware configuration of PLC, check whether the PLC protocol is set properly, check whether it is set as a private protocol, and whether the station settings and messages are consistent.
Next, confirm the serial port to receive 15 (NAK). What else is there?
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The first received by the serial port is ACK (06), and then there are several NAK (15).
The hardware is directly connected to the PLC and notebook with USB-SC-09. The internal registers of PLC are all initialized and not set. What are some of the settings to be set?

The above code needs to be done with the PLC extended 232 or 485 communication interface and cannot be done with the 422 programming port.
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Hello, can your program send me a copy? I just need to use it. I'm sorry to trouble you, QQ 1024695255

Hello, your program can give me a urgently, thank you. Qq412302466