When a timeout occurs, there may be various factors such as network load, noise, or equipment malfunction. The following is a list of factors that have been reported in the past for your reference (these are just examples of reports and have not been verified by the manufacturers or models listed).
- When using Buffalo HUBs with model number "BUFFALO LSW-TX-xxx", there is a phenomenon that communication (especially UDP communication) becomes unstable. If you are experiencing instability with this model, please check the network status with another HUB and try to isolate the cause.
- When multiple applications such as ladder editing tools and touch panels from other companies are connected to a single PLC, timeouts may occur. In such a case, please try to use only one connection and try to isolate the cause.
- Is the cause in the PC, the communication path, or the PLC? The most common cause is the communication path, so try to isolate the cause by using a crossover cable to connect directly without going through the HUB.