DearExpert,
i have a project that requires me to use a dual redundant PLC spec.(Power and CPU redundancy).
i will like to use rockwellAutomation as my brand, going through i see that contrologix will suit my purpose, how ever in the redundant architecture i saw, they included contrologix I/O module and Flex i/o module.My questions are....
1. why the two i/o modules?
2. Any other AllenBradley PLC with this kinda redundancy features?
3.All i wana do is monitor or possibly control Field devices, is contrologix no two much for this task?
My I/o counts are
total D i/o= 95
A i/o = 158
each with a mix of different voltage requirement 24vdc, 120 VAC, 4-20ma
Kindly advice on what /how to spec things out here .
i have a project that requires me to use a dual redundant PLC spec.(Power and CPU redundancy).
i will like to use rockwellAutomation as my brand, going through i see that contrologix will suit my purpose, how ever in the redundant architecture i saw, they included contrologix I/O module and Flex i/o module.My questions are....
1. why the two i/o modules?
2. Any other AllenBradley PLC with this kinda redundancy features?
3.All i wana do is monitor or possibly control Field devices, is contrologix no two much for this task?
My I/o counts are
total D i/o= 95
A i/o = 158
each with a mix of different voltage requirement 24vdc, 120 VAC, 4-20ma
Kindly advice on what /how to spec things out here .