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i've 10 GE relays of types 750, 369, 469 and 480 in one loop. the issue is more likely to be a communication issue.
After some time master station stops polling data from one of the relays connected in that loop and then after a small fraction of time (4 to 8 seconds) it comes back to normal.
when i checked the absolute voltage between + and - wires of RS 485 cable it shows 1.5 volts whereas when i checked the volts level on other loops, it shows 2.5...
does it sound a familiar issue to anyone out there, or think the voltage level might causing this issue of regular failover.
After some time master station stops polling data from one of the relays connected in that loop and then after a small fraction of time (4 to 8 seconds) it comes back to normal.
when i checked the absolute voltage between + and - wires of RS 485 cable it shows 1.5 volts whereas when i checked the volts level on other loops, it shows 2.5...
does it sound a familiar issue to anyone out there, or think the voltage level might causing this issue of regular failover.
