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Showing results for tags 'comm'.
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Hi there! I'm trying to communicate a Weintek cMT2128X with a CP2EN via Ethernet. The thing is I'm getting 'No device response' messages every 2-3 seconds. They'are connected at some point because some values are updated, but the connection error keeps showing up. So far I've checked: - Comm. settings are okay in both sides - Wiring is good - Happens the same with a CJ2 CPU. - There are two arrays of 50 UINT each, I don't know if that's slowing things but that would surprise me... I've worked with Weintek HMIs before (communicating with different CPUs: LOGO!, CP1, CJ2...) and never had this problem. I just set the IP addresses and everything was working fine, so I guess I'm missing something. Hope you can throw some light at this! Thanks in advance
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OMRON SCU32-SCU32 - Serial port communication fluctuation
T J SHARON posted a topic in CX-Programmer
HI All, I have an issue with my SCU32 communication. Back ground Two SCU32s (top and bottom side) connected via a 1100M datacable using port1 ( 9600bps, 8-2-E, start code FF, end code FE, Tx save to d1000-d1200 , Rx save to d2000-d2200). PORT2 of bottom SCU32 is connected to a compass( 2 wire, 8-1-N, 19200 bps, serial gateway MODBUS ). Refer to photo Issue Without compass, the receiving data at top is very stable and is didn't see any fluctuation. But if is compass is connected at bottom side port2, there is a fluctuation at the top side RX data(specifically d2000-d2005 ) . I checked the data a bottom side TX (d1000-d1200) and it is stable. Only after sending the data and Receiving at Top side, then only the starting words fluctuate. I am not sure sure what is wrong, I am using logical ports for the DTXDU/DRXDU and compass. Appreciate all your feedback and suggestions. -
Lets say i have a PLC, with a name PLC1 with IP/Subnet of 10.125.34.243/255.255.255.0 I have to communicate this PLC1 with 2 other PLC's, PLC2 and PLC3 PLC2 with IP/Subnet of 10.125.34.10/255.255.0.0 PLC3 with IP/Subnet of 10.125.46.10/255.255.0.0 I imagine that, all these three are in different subnets, and so there should be no communication at all, but when i tested it, PLC1 to talking to/from PLC2 and not PLC3. anyone know the answer to this ? How does it talk to PLC2 with different subnet, but not PLC3 which is in different subnet as well.
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