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Found 1 result

  1. Hello friends. I am using a USC B5 TA30. This PLC is communicating with 4 frequency inverters in RS485. I managed to establish communication but it is very unstable, the problems are as follows: -It does not update in real time, it takes a few seconds because I need to be updating the routine call manually; -All the inverters are configured correctly and work individually just by changing the cable between them, but when I connect them all there is no command of two or more (each with their own address); Some data that may be relevant: -All equipment is functional; -They are Toshiba inverters of the VSF15 and VF-FS1 lines; -The distance between the components is small and I'm working with 9600 Baud Rate, Parity None, Stop Bits 8; I think the problem is in some configuration in the call of routines related to time or ModBus configuration of the UAC-CB-01RS4 cards, the RX / TX LEDs are blinking and very fast as usual in OK communication. I already have an HMI in the same communication working on the other UAC-CB-01RS4 card, it also has a little bit of instability, but it reads and writes the data on the PLC. can anybody help me? Thank you very much and I wish you well!
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