1. LBT Q1 2008 Eng/SW Review ROT - Rotators

2. 4-Apr-2008LBT Q1 2008 Eng/SW Review Highlights First BG rotator installed First BG rotator installed BG cable chain development proceeding BG cable chain development proceeding The MCSPU can make the LUCIFER rotator Hold, Slew and Track The MCSPU can make the LUCIFER rotator Hold, Slew and Track PCS can command the LUCIFER rotator PCS can command the LUCIFER rotator The engineering interface has 6 rotator pages and over 50 rotator commands The engineering interface has 6 rotator pages and over 50 rotator commands

3. 4-Apr-2008LBT Q1 2008 Eng/SW Review Progress Complete first BG integration √ Complete first BG integration √ Complete first BG telescope installation √ Complete first BG telescope installation √ Prepare for first BG commissioning Prepare for first BG commissioning Complete BG cable chain prototype Complete BG cable chain prototype Begin DG detailed mechanical design √ Begin DG detailed mechanical design √ Additional Progress Additional Progress LUCIFER rotator now controlled by MCSPU / PCS √ LUCIFER rotator now controlled by MCSPU / PCS √ Rotator telemetry functional (though not though TEL) √ Rotator telemetry functional (though not though TEL) √ Rotator software integrated with mount software √ Rotator software integrated with mount software √ Built/tested/installed Reef Interface Module (one channel) √ Built/tested/installed Reef Interface Module (one channel) √ Tested/installed prototype Rotator Interface Module √ Tested/installed prototype Rotator Interface Module √ Tested/installed prototype Power Driver Module √ Tested/installed prototype Power Driver Module √ Built/partially tested second Rotator Interface Module √ Built/partially tested second Rotator Interface Module √ Developed microcontroller functional test software √ Developed microcontroller functional test software √ Completed Rotator Interface Module VHDL code √ Completed Rotator Interface Module VHDL code √ Manufactured additional GPCOM boards √ Manufactured additional GPCOM boards √ Built second and partially built third Power Driver Module √ Built second and partially built third Power Driver Module √

4. 4-Apr-2008LBT Q1 2008 Eng/SW Review Open Issues Technical Technical BG: Issues in software/electronics BG: Issues in software/electronics Linux kernel stability Linux kernel stability Rotator CPP causes servo thread to terminate Rotator CPP causes servo thread to terminate Rotator/mount integration – Rotators change azimuth behaviour Rotator/mount integration – Rotators change azimuth behaviour Very little run time, more issue expected to emerge Very little run time, more issue expected to emerge BG: Cable chain still high risk BG: Cable chain still high risk DG: None DG: None Schedule Schedule Schedule is very tight Schedule is very tight Budget Budget None None Resource Resource Limited people to support BG completion and DG design Limited people to support BG completion and DG design Competition with other projects (Swing Arms, Counter Weight, Gregorian SW Testing, etc.) Competition with other projects (Swing Arms, Counter Weight, Gregorian SW Testing, etc.) Availability of telescope for testing / commissioning Availability of telescope for testing / commissioning

5. 4-Apr-2008LBT Q1 2008 Eng/SW Review Planning (Q2/2008) Complete BGR2 lab integration Complete BGR2 lab integration Complete BG cable chain design Complete BG cable chain design Complete BG cable chain integration Complete BG cable chain integration Install SX BG cable chain on telescope Install SX BG cable chain on telescope Complete DGR detailed mechanical design Complete DGR detailed mechanical design Start manufacture of large DGR structure Start manufacture of large DGR structure Order other DGR long lead items Order other DGR long lead items Test/install second set of rotator electronics Test/install second set of rotator electronics Rev. Power Drive Module relay board Rev. Power Drive Module relay board Debug integrated rotator/mount software Debug integrated rotator/mount software Test/debug software for new Rotator Interface Module features Test/debug software for new Rotator Interface Module features Test/debug cable chain software Test/debug cable chain software Develop/test and debug Rotator Interface Module microcontroller software Develop/test and debug Rotator Interface Module microcontroller software Define numerous events in the Event Logging System Define numerous events in the Event Logging System Many shared memory variables need to be created to communicate rotator status info to the rest of the TCS Many shared memory variables need to be created to communicate rotator status info to the rest of the TCS Update the software specification Update the software specification GUI (Q3 or Q4?) GUI (Q3 or Q4?)