Vidmas30 Posted January 15 Report Share Posted January 15 Good day, I have an application where Unistream PLC is a Modbus TCP slave (default port 502). Until now there was one master that was reading all required information from Unistream. Now customer wants one more master to read from this PLC. How could I do it correctly? when I try to add Modbus TCP slave2 with different port, I get error message that both slaves are set to the same communication protocol. What I'm doing wrong? Thank you in advance! Quote Link to comment Share on other sites More sharing options...
ORSO2001 Posted January 15 Report Share Posted January 15 hi Vidmas30...if I well remember Unilogic PLC can manage until 32 clients (master) with the same server (slave)...so no other client instance are needed in your case. Quote Link to comment Share on other sites More sharing options...
Vidmas30 Posted January 16 Author Report Share Posted January 16 Hi, Orso, Thank you for your answer. Interesting, because now it doesn't seem like that - new system (master) gets timeouts while trying to connect to Unistream (slave) then at some point connects, reads information and it happens all the time. Seems like it cannot connect while other master is connected.. Quote Link to comment Share on other sites More sharing options...
ORSO2001 Posted January 16 Report Share Posted January 16 did you try ping the IP ? Quote Link to comment Share on other sites More sharing options...
Vidmas30 Posted January 16 Author Report Share Posted January 16 Yes, ping goes well. Tried with another Unistream controller at my office, everything's fine: reading information from controller with two different PC's at the same time. Don't know what could be the issue at the customers plant? Will try to look closer . Thank you! Quote Link to comment Share on other sites More sharing options...
NoamM Posted January 17 Report Share Posted January 17 Hi Vidmas30, Only one Modbus TCP slave is supported in UniStream. Quote Link to comment Share on other sites More sharing options...
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