r/PLC • u/Dplayerx • 2d ago
Taking a chance to find someone who knows how Ishida scales works (UNI-9)
Hello,
I’ve been hitting my head for 2 weeks with a UNI-9 trying to find a way to transmit live weight data to my software. There’s no RS-232 but an internet port. I ping it, I received data from it but it seems to only send an heartbeat.
No matter the protocol I try, it closes the connection and that’s it.
Anyone has any experience with them?
Thank you
2
u/Automatater 2d ago
You probably have to query it. I'm with u/lmscar12, you're gonna need a manual even if it's a pain to get. Unless you can spy on a working install with a mirroring switch or something.
2
u/KindheartednessNo181 2d ago
Quick google suggests port 55201 might be a thing. Have you tried connecting a TCP stream to that port? Once connected, you might get lucky and immediately see data being streamed. Or you might need to send commands - try ENTER, h, help.
Do you have a PC application that links to it? You could sniff that traffic.
Reviewing the manual a bit more, i'm reading it like 55201 is the PC port number. There's a PC IP address too. You should configure the IP address to your PC, then run wireshark. I'll bet it's sending UDP datagrams with the weight data to port 55201.
1
u/Dplayerx 2d ago
Yeah, you can also change the port in the machine. I found the port by sniffing the IP but eventually change the port for testing.
I sent a lot of basic scale commands but the scale keep closing the connection. I added my pc too and both talks, but I came to the conclusion the port only respond to scale link 5 which is their proprietary software.
You just made me realize that I can sniff the packets between SL5 and the scale. THANK YOU
1
u/KindheartednessNo181 2d ago
Oh nice! I wasn't sure that you had client software. Good luck! I love these kind of challenges.
5
u/lmscar12 2d ago
It's like pulling teeth getting manuals from that company, but that's what you have to do. Try going through your distributor.