MantisBT - Hall D Online
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0000262Hall D OnlineControlspublic2012-05-24 10:492012-06-29 13:57
wolin 
ballard 
normalfeatureN/A
resolvedfixed 
No
1
0
0
0000262: Develop strategy to read out RTDs and thermocouples
Work out best strategy to read out 96 BCAL RTDs, up to 30 start counter type-T thermocouples, and 10 or so CDC thermocouples.
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Issue History
2012-05-24 10:49wolinNew Issue
2012-05-24 10:49wolinWork by outside group for Hall D => No
2012-05-24 10:49wolinEstimated man-weeks => 1
2012-05-24 10:49wolinPercentage complete => 0
2012-05-24 10:49wolinActual man-weeks => 0
2012-05-24 10:49wolinStatusnew => assigned
2012-05-24 10:49wolinAssigned To => ballard
2012-05-24 11:23wolinNote Added: 0000372
2012-06-05 11:48wolinNote Added: 0000383
2012-06-29 13:57ballardNote Added: 0000391
2012-06-29 13:57ballardStatusassigned => resolved
2012-06-29 13:57ballardResolutionopen => fixed

Notes
(0000372)
wolin   
2012-05-24 11:23   
Fernando says the start counter will require between 4 and 30 thermocouple readout channels, they are not sure yet.
(0000383)
wolin   
2012-06-05 11:48   
Add humidity sensors to the list.
(0000391)
ballard   
2012-06-29 13:57   
It looks like Allen Bradley CompactLogix PLC and 1769 IO is the most economical and flexible options. I recommended a dual-PLC system (one upstream and one downstream) - this will allow 60 1769 modules + 0000081:0000100 Point IO modules, which is more than enough for current/future needs.