Difference between revisions of "Controls Meeting 8-Mar-2012"
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* Minutes from previous meeting [[Controls_Meeting_23-Feb-2012|23-Feb-2012]] | * Minutes from previous meeting [[Controls_Meeting_23-Feb-2012|23-Feb-2012]] | ||
* FCC noise specifications - Elliott, Hovanes | * FCC noise specifications - Elliott, Hovanes | ||
| + | * [http://halldweb.jlab.org/JInventory JInventory database] | ||
* CDC thermocouples - Elliott | * CDC thermocouples - Elliott | ||
| − | * Counting house installation - Hovanes | + | * Counting house installation - Hovanes, Mark |
* Equipment orders - Mark, Hovanes | * Equipment orders - Mark, Hovanes | ||
* [[Solenoid_Controls_Redesign]] - Mark, Josh, Scot, Yi, Elliott | * [[Solenoid_Controls_Redesign]] - Mark, Josh, Scot, Yi, Elliott | ||
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* PLC programming - Josh | * PLC programming - Josh | ||
* Elogs and databases - Elliott | * Elogs and databases - Elliott | ||
| − | + | ** [https://halldweb.jlab.org/elog-halld Midas elog] | |
| − | ** [https:// | + | |
** Operator elog | ** Operator elog | ||
* Experiment Control Supervisor - Elliott | * Experiment Control Supervisor - Elliott | ||
| − | * [http:// | + | * [http://halldweb.jlab.org/mantisbt Mantis task tracker] |
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==Time/Location== | ==Time/Location== | ||
| − | + | 9:30 AM Thurs 8-Mar-2012 CC L207 | |
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=Minutes= | =Minutes= | ||
| − | Present: | + | Present: Elliott W, Mark S, Josh B. |
| + | |||
| + | |||
| + | |||
| + | '''FCC Noise Specifications''' | ||
| + | |||
| + | Mark sent Fernando some noise specs for assorted PLC and other equipment. None of it satisfied Fernando's preferred FCC Class B spec. Eugene noted that we will have to measure and mitigate when devices do not meet the Class B spec. | ||
| + | |||
| + | |||
| + | |||
| + | '''JInventory Database''' | ||
| + | |||
| + | Elliott presented a test release of the inventory database, a somewhat modified copy of what CLAS has been using for a number of years. CLAS and Hall D are collaborating on making upgrades and improvements. Please give it a try and send comments to Elliott. We hope to deploy a production version next week. | ||
| + | |||
| + | |||
| + | |||
| + | '''CDC Thermocouples''' | ||
| + | |||
| + | The CDC will have 10 Type J thermocouples. Currently CMU reads them out with an Omega controller. We think we should use Point I/O thermocouple modules and read them out via the PLC. We would use the Point I/O chassis mounted on the solenoid controls racks. Josh will investigate options and costs and make a recommendation. | ||
| + | |||
| + | Alternatively we could locate a Point I/O chassis near the CDC. An important question is what magnetic field the Point I/O system can handle. Josh will contact Allen-Bradley concerning this. | ||
| + | |||
| + | |||
| + | |||
| + | '''Counting House''' | ||
| + | |||
| + | Mark got touchup paint for the racks. | ||
| + | |||
| + | |||
| + | |||
| + | '''Solenoid Controls Redesign''' | ||
| + | |||
| + | The subcommittee is meeting every week now. Two days ago we came up with a conceptual design for connecting the PXI device to the coil taps, Mark and Scot will flesh out the design. | ||
| + | |||
| + | Mark learned that all JLab Danfysik power supplies include a "Cebaf board" that presents four internal analog signals for monitoring. One of them is the output of the ZFCT. Thus the high-precision current analog output signal already exists. We will read out all useful signals on the Cebaf card. | ||
| + | |||
| + | |||
| + | |||
| + | '''Goniometer''' | ||
| + | |||
| + | It appears that the goniometer will use Ethernet-based control. Josh will order a 490NBX to learn how to use it. It is not clear whether the goniometer will connect to the PLC or directly to EPICS, though. | ||
| + | |||
| + | |||
| + | |||
| + | '''Electonic Logging''' | ||
| + | |||
| + | It is not clear whether the JInventory database replaces the Midas-based Maintenance elog or whether they are complementary. Initial thinking is that although they overlap, they do different things, so we should try to use them together. | ||
Latest revision as of 10:29, 31 March 2015
Agenda
- Announcements
- Minutes from previous meeting 23-Feb-2012
- FCC noise specifications - Elliott, Hovanes
- JInventory database
- CDC thermocouples - Elliott
- Counting house installation - Hovanes, Mark
- Equipment orders - Mark, Hovanes
- Solenoid_Controls_Redesign - Mark, Josh, Scot, Yi, Elliott
- coil tap circuits, PXI, SOE, QD, shunt replacement, ground fault detector, etc.
- EPICS - Hovanes, Nerses
- Test stand - Hovanes, Josh
- Target, goniometer, other new systems - Hovanes, Elliott
- PLC programming - Josh
- Elogs and databases - Elliott
- Midas elog
- Operator elog
- Experiment Control Supervisor - Elliott
- Mantis task tracker
Time/Location
9:30 AM Thurs 8-Mar-2012 CC L207
Announcements
Next Meeting
9:30am 22-Mar-2012 CC L207
Minutes
Present: Elliott W, Mark S, Josh B.
FCC Noise Specifications
Mark sent Fernando some noise specs for assorted PLC and other equipment. None of it satisfied Fernando's preferred FCC Class B spec. Eugene noted that we will have to measure and mitigate when devices do not meet the Class B spec.
JInventory Database
Elliott presented a test release of the inventory database, a somewhat modified copy of what CLAS has been using for a number of years. CLAS and Hall D are collaborating on making upgrades and improvements. Please give it a try and send comments to Elliott. We hope to deploy a production version next week.
CDC Thermocouples
The CDC will have 10 Type J thermocouples. Currently CMU reads them out with an Omega controller. We think we should use Point I/O thermocouple modules and read them out via the PLC. We would use the Point I/O chassis mounted on the solenoid controls racks. Josh will investigate options and costs and make a recommendation.
Alternatively we could locate a Point I/O chassis near the CDC. An important question is what magnetic field the Point I/O system can handle. Josh will contact Allen-Bradley concerning this.
Counting House
Mark got touchup paint for the racks.
Solenoid Controls Redesign
The subcommittee is meeting every week now. Two days ago we came up with a conceptual design for connecting the PXI device to the coil taps, Mark and Scot will flesh out the design.
Mark learned that all JLab Danfysik power supplies include a "Cebaf board" that presents four internal analog signals for monitoring. One of them is the output of the ZFCT. Thus the high-precision current analog output signal already exists. We will read out all useful signals on the Cebaf card.
Goniometer
It appears that the goniometer will use Ethernet-based control. Josh will order a 490NBX to learn how to use it. It is not clear whether the goniometer will connect to the PLC or directly to EPICS, though.
Electonic Logging
It is not clear whether the JInventory database replaces the Midas-based Maintenance elog or whether they are complementary. Initial thinking is that although they overlap, they do different things, so we should try to use them together.
