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IDProjectCategoryView StatusDate SubmittedLast Update
0000246Hall D OnlineControlspublic2012-04-19 12:162012-06-29 13:58
Assigned Toballard 
PlatformOSOS Version
Summary0000246: Investigate using RS485 instead of RS232
DescriptionRS485 allows daisy-chaining, and the NBX modules and many of our devices can talk RS485. If we use RS485 we won't need as many NBX modules.
Additional InformationOne concerns is if the devices lose their RS485 addresses when power cycles. If so we'd have to reprogram them every time they get turned off or if the power cycles. The latter may not be often since we plan to have UPS power on most devices.
TagsNo tags attached.
Work by outside group for Hall DNo
Estimated man-weeks1
Percentage complete0
Actual man-weeks0
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ballard (developer)
2012-06-29 13:58

We don't have enough RS485 devices to make it worthwhile to investigate.

- Issue History
Date Modified Username Field Change
2012-04-19 12:16 wolin New Issue
2012-04-19 12:16 wolin Work by outside group for Hall D => No
2012-04-19 12:16 wolin Estimated man-weeks => 1
2012-04-19 12:16 wolin Percentage complete => 0
2012-04-19 12:16 wolin Actual man-weeks => 0
2012-04-19 12:16 wolin Status new => assigned
2012-04-19 12:16 wolin Assigned To => ballard
2012-06-29 13:58 ballard Note Added: 0000392
2012-06-29 13:58 ballard Status assigned => resolved
2012-06-29 13:58 ballard Resolution open => fixed

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