I Need Help on DMS-35

[jd51873]

I have a customer that is having an issue with a damper not stroking. there is a dos program interface on the front end. I cant find any logic in the front end (DMS-35). I accessed the Microsmart controller through the Msmart menu option. I still cannot find any logic for the damper. Do I need some other software or equipment to access the logic in the microsmart controller? Does any one have any manuals for these controllers?

[mbarson]

Can you access the controller that the damper is connected? Are you using the DMS-35 or a PC? You need to find the AO that it is tied to. The logic is most likely tied to a loop point that is referenced by the AO. You can stroke the damper with the damper AO set point hi and low outputs. Min 98 max 100 to open or 0 min 4 max to close (if direct acting).

[jd51873]

I am accessing the AO using a PC connected to the DMS-35. The AO appears to be configured as belonging to the field controller. I looked at the point's configuration through the DMS-35 display and the AO is said to belong to the controller. I don't see any loops connected to this output. the loop goes to min setpoint value when it is in stop mode. I cant find any schedules connected to the point either. I cant find any early stop event connected to the point. I don't know if I can see all of the schedules or loops in the Microsmart controller using the MSmart menu in the pc front end. Can I?

[daves-dms]

Whats the unit controller in this case?

[jd51873]

I searched other points in the database and I discovered how this point was overiden automatically by another point. I also found how the loop is connected to this point. There was a misunderstanding of naming conventions programed in database. once I studied other points in the system I began to understand the programmers naming convention and the loop and limit points became noticable.

Thanks for the help offered.