Hello! Bringing this thread back from the dead. I’m having a VERY aggravating UDP issue with a PolyScience chiller. I can send messages (e.g. set a temperature setpoint), and it’s receiving them (new setpoint shows on their local display), but I’m not receiving any characters on my comm handle in return. The Set Communication Handle Value (“udp:10.40.188.76:1024”, Poly_ch) must be working, or the chiller wouldn’t receive my setpoint message. RIght?
When I use Packet Sender from my laptop (set for udp with same IP address and same port number) to send the same messages and Wireshark to receive responses, the Chiller is in fact sending the correct responses back and Wireshark picks them up just fine.
Any thoughts? I’m using Transmit String, Get Num Chars Waiting, then ReceiveString (only if NumChars > 0). Not getting any errors on Open Outgoing Communication or Transmit String – I’m just not getting any Characters in response (Num Chars is always == 0). Thanks! Let me know if you need more of my code.
Also tagging @Beno
Thanks!!!