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- PC reliability?
- Windows, real time
- PID loops
- PCs vs. PLCs
- Replacing people
- MS 'monopoly'?
- Software quality
- Where do we go from here?
- Why pay?
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from the Technical project Mangment department...
Problem with Modbus serial repeaters
I am working in a project using premium PLC as a master to control 10 Zelio slave PLCs, the Zelios are far apart from the premium PLC so I used 2 repeaters (Phoenix Type) and arranged the repeaters according to the distances (not to be more than 1200M) the repeaters contain internal terminating resistors I changed the terminating resistors position and each time some RTUs can't be detected , the best case I detected 9 zelios but still one not deteceted
Please send me the right configuration of the terminating resistors for this application
Please send me the right configuration of the terminating resistors for this application
From Control Engineering magazine...
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