I'm looking for a correct reference for some Modbus registers in a DR4500 chart recorder.
The registers are listed in Honeywell's document number 51-52-25-69 (I have rev A, February 2000, of that manual.) The register I'm interested in is "SP Program Enable". According to that manual, it should be register 6192. That register doesn't seem to work properly. (Tried bumping the register value +/- 1 as well.
I'm not terribly surprised, as that particular manual is somewhat unreliable (lots of registers with incorrect addresses). I've had far better luck with Honeywell's document number 51-52-25-66 (I have Revision T, February 2013, of that manual). It's a general Modbus Manual, but it doesn't have an entry for the register I'm looking for.
I'm hoping that someone might have needed this bit of info in the past, or has a better reference than I can find. I know it's a long shot, but I figured I might get a faster response here than trying to figure out Honeywell's support.
Thanks,
Brian
The registers are listed in Honeywell's document number 51-52-25-69 (I have rev A, February 2000, of that manual.) The register I'm interested in is "SP Program Enable". According to that manual, it should be register 6192. That register doesn't seem to work properly. (Tried bumping the register value +/- 1 as well.
I'm not terribly surprised, as that particular manual is somewhat unreliable (lots of registers with incorrect addresses). I've had far better luck with Honeywell's document number 51-52-25-66 (I have Revision T, February 2013, of that manual). It's a general Modbus Manual, but it doesn't have an entry for the register I'm looking for.
I'm hoping that someone might have needed this bit of info in the past, or has a better reference than I can find. I know it's a long shot, but I figured I might get a faster response here than trying to figure out Honeywell's support.
Thanks,
Brian