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I am with a new project and we are working on AB controllogix.
We are planning to use redundancy everywhere as the process is critical.
We will use redundant CPU, redundant Power supply to all chassis.
We have redundant CPU chassis with redundant power supply.
down that we have 4 I/O chassis each chassis with one CNBR card.
Now what will happen if the CNBR card itself fails in that particular I/O chassis.
can we have two redundant CNBR card in each I/O Chassis. can we switch automatically to other CNBR card
if the first CNBR card fails in the I/O chassis.
has anyone tried this.
Is this software switching will there be any timing issue.
also now suppose i have only one CNBR in each chassis and suppose that CNBR card has failed. what will happen to
the I/O cards. can we program the I/O cards to stay in their previous state.
will this failure of one CNBR card in an I/O chassis trip our process. will our CPU go to fault mode when an CNBR card in a I/O chassis fail.
Will the user be known that a cnbr card has failed in so and so I/O chassis.
Sorry this is my first time with Control logix.
thanks for your help
We are planning to use redundancy everywhere as the process is critical.
We will use redundant CPU, redundant Power supply to all chassis.
We have redundant CPU chassis with redundant power supply.
down that we have 4 I/O chassis each chassis with one CNBR card.
Now what will happen if the CNBR card itself fails in that particular I/O chassis.
can we have two redundant CNBR card in each I/O Chassis. can we switch automatically to other CNBR card
if the first CNBR card fails in the I/O chassis.
has anyone tried this.
Is this software switching will there be any timing issue.
also now suppose i have only one CNBR in each chassis and suppose that CNBR card has failed. what will happen to
the I/O cards. can we program the I/O cards to stay in their previous state.
will this failure of one CNBR card in an I/O chassis trip our process. will our CPU go to fault mode when an CNBR card in a I/O chassis fail.
Will the user be known that a cnbr card has failed in so and so I/O chassis.
Sorry this is my first time with Control logix.
thanks for your help