I have a set of digital and analog I/O coming from a source that has it's own power source and enclosure that the PLC (honeywell HC900) is not a part of. (microwave system powersupply/controller cabinet that the honeywell will be interfacing via DI/DO and some 0-10V analog signals (in and out). What would be a good way to make sure the PLC reads these at all times without any issues.
My idea at the moment is, that since my electrical enclosure will be powering (480VAC) and will be grounding the microwave systems, that I bond the 0V of both the PLC's and microwaves 24VDC supply as well to the same ground. Though, I feel iffy about the 10VDC analog I/O still. I am used-to 4-20mA signals only.
Does this seem bullet proof?
My idea at the moment is, that since my electrical enclosure will be powering (480VAC) and will be grounding the microwave systems, that I bond the 0V of both the PLC's and microwaves 24VDC supply as well to the same ground. Though, I feel iffy about the 10VDC analog I/O still. I am used-to 4-20mA signals only.
Does this seem bullet proof?