CAMAC
Camtest
Plot
GSExam
Re-Booting CAMAC
CAMAC Modules Currently In Use
Hytec 450-4 Link Settings For WHT

CAMAC

The CAMAC system is used to control the JKT, INT and WHT telescopes.

Camtest

Camtest allows the inputs to camac to be read and the outputs to be written to.  Camtest is used to trace faults that are suspected to be hardware problems.  To use Camtest, do the following:

• Telnet to the TCS system that you want to run Camtest on.
• Login:            engineer
• Password:    **********
• Select Camtest.
• Typing <help> will list the available commands.

• execute 6 2 12 0 0 /rep= 100 /per=1000.  This will read the absolute elevation encoder once per second on the WHT CAMAC.  The numbers represent branch 6, crate 2, node 12, sub address 0, function number 0=read 16=write, repeat 100 times, per is the sampling rate in milliseconds.
• execute 6 2 13 0 0 /rep /per=1000.  This will read the absolute azimuth encoder once per second on the WHT CAMAC.  Note that the rep isn't defined.  This will sample continuously until <ctrl c> is typed.
• execute 4 1 10 0 0 /rep /per.  This will read the JKT dome encoder once per 1s on the JKT CAMAC.  Note that per is not defined.  A sampling rate of 1s is the default.

Plot allows an input to the CAMAC to be logged.  After an input has been logged, a graph can be produced or the data can be saved for analysis by another program.  To use Plot, do the following:

• Telnet to the TCS system that you want to run plot on.
• Login:            genuser
• Password:    ***********
• Select <plot>.
• Typing <help> will list the available commands.

• 'cd [wht.data.encoder]'
• 'help' lists commands.
• 'dir' lists the files in the directory
• 'data filename' where filename is the name of the log file.
• 'read 1 utc' sets the x axis for time.
• 'read 2 azimuth poserr' sets the y axis for azimuth position error.
• 'device xwindow' sets the output for the vdu.
• 'limits'
• 'plot'.  The graph will now be displayed.
• To change the values of the graph use 'box 0 5 -.6 +6'  This sets the x and y scales
• 'plot'
• To print the graph out, use 'device ps'
• 'exit'
• The output plot will be printed.
• To print another, run plot again and immediately exit it, answering the questions.

This is used to check values for the telescope servo system and to change them temporarily for testing.

• Telnet to the TCS system that you want to run plot on.
• Login:            genuser
• Password:    ***********
• Select 'gsexam'.

• 'exam mec_ar_serv(1)' will examine the az servo.
• 'exam mec_ar_serv(1)'.vel_limit' will examine the az servo velocity limit.
• 'dep mec_ar_serv(1).vel_limit(1)=0.1299E-02'  to change the velocity limit.
• Changes revert back to normal after rebooting the TCS.

Re-Booting CAMAC

To re-boot the CAMAC system, do the following:

• Shut the contolling computer down.
• On each CAMAC crate in the system, take it off line and then turn the power switch off.
• Leave the system off for 1 minute.
• Turn each crate back on, reset, clear and put back on line.
• Start the system computer back up.
• The CAMAC system is ready to go.

• Hytec, 450-4
• Hytec, 1386 PCI Controlled ACB CAMAC dataway controller
• Hytec, 640VSL
• Fisher Controls, OD2411
• Fisher Controls, PR2402
• Fisher Controls, ADC 1232-2
• Fisher Controls, ADC 1232-1
• Fisher Controls, BT 6502
• Fisher Controls, BR CPR 4-1
• GEC, BT6502 branch terminator
• GEC, OD 2407 output driver
• GEC, DTM 4
• GEC, DBE 6501-1
• GEC, WGR 2403
• NE, 9554/1
• NE, 9085 multidac
• SEN, CC2089 'A2' crate controller
• DSP, CCAZ type A2 crate controller
• RGO, 32 bit counter
• RGO, ED011 encoder interface
• RGO, ED012
• LP34
• LP37
• OD/48 output register
• IR/48 input register
• DTM-399 display monitor
• 3340 COMM INTRFC
• WGR-241
• CAMAC PSU TESTER