Hello,
I’m currently using a HMS-EN2SE-R to read engine data over Modbus RS-422. There are two clients reading the same data (one including the HMS-EN2SE-R and another is a display for the engine). The HMS-EN2SE-R module reads the data over Modbus fine, but after a random amount a time from a couple hours to a few days the communication will lock up and we can’t read any more data from the server whether its from the HMS-EN2SE-R or the other display client. We then have to power down the engine control system and reboot to get communication back again.
If only one client is connected at a time then we never lose communication. The HMS-EN2SE-R replaced an old PLC-5 card that read the same data, and there were never any issues with communication loss with both of the clients running at the same time. I don’t have access to the old settings of that card to see if anything unique was going on there.
The only settings I tried to change in the HMS-EN2SE-R were the minimum time between broadcasts and the update time from one second to three. It seemed to have made it better, but there are mixed results Are there any settings I should change to solve this issue? This is happening on three different set ups so its not linked to just one installation.
Thanks,
Blake