[Dsg-hallc_controls] UPS status

[Tyler Lemon]

Hi Steve, 

I have a few questions/comments on you email. 

1.) Should there be a single tag that encompasses faults on either the PLC UPS (upstairs in counting house) or the I/O UPS (down in hall)? 

2.) Is the wiring to the I/O UPS units in the hall to the appropriate PLC channels complete? 

3.) Since there are no SHMS I/O channels upstairs in the counting house, should the PLC UPS status be read by the HMS PLC and passed to the SHMS PLC as an ethernet tag? If this is not the case, has the cabling between the PLC UPS upstairs and the SHMS I/O channel downstairs been ran? 

4.) A 24 V power supply is needed to generate the signal that indicates a UPS fault for the PLC UPS. Is there one available to install in the rack next to the UPS and dsub-to-terminal-block adapter on the second floor of the counting house? 

Best regards, 
Tyler 



From: "Steve Lassiter" <lassiter at jlab.org> 
To: "dsg-hallc controls" <dsg-hallc_controls at jlab.org> 
Sent: Monday, July 30, 2018 2:02:37 PM 
Subject: [Dsg-hallc_controls] UPS status 

Hi, 

There are three UPS being used for the HallC control systems that need to watched and acted upon. 

HMI I/O UPS 
SHMS I/O UPS 
HMS and SHMS PLC UPS 

For the HMS. The status of the I/O UPS was originally planned to be read by the rotation rack I/O chassis, module 3 channel 13. This is still available and one could add the HMS PLC UPS status in series to the HMS I/O UPS status. 

Now for the SHMS, a new module, IB16D, should be added to the HX chassis, slot 6 to read the SHMS I/O UPS and SHMS PLC UPS (same UPS as the the HMS but a different relay contact) in series to one another. 

Steven 


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