E-158
CID Arbitrary Waveform Generator
Software Contact: Glen Wetzel |
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E-158 uses a Stanford Research Systems Model DS345 Arbitrary Waveform Generator to assist in forming the CID area laser source. Photos of the installation:
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The DS345 is generally
connected to your display in the following manner:
DS345
ßà
GPIB Cable ßà
E2050 LAN/GPIB GATEWAY ßà
10BaseT EtherNetworkßà
damping
ring RF IOC. ßà
10BaseT EtherNetwork ßà
EPICS DM2K Client on UNIX BOX (your display)
With the exception of
the DS345 connection setup, all parameters are downloaded by the software.
The connection setup parameters should be resilient to any loss of
power. In the case a new DS345 is
installed or the connection parameters have been changed, the DS345 needs to
be setup in GPIB mode using address 17. To
set, follow this sequence:
A)
Power on the DS345
B)
Press SHIFT
C)
Press LOCAL
D)
Press SHIFT
E)
Press GPIB.
Use <uparrow> so that display
shows gpib on
F)
Press SHIFT
G)
Press GPIB. Use <uparrow>
or <downarrow> to show Address 17
From the SCP, start the
operator slider User Interface by navigating from ‘INJCTR Index’ to ‘CID
Flash TI Panel’ to ’SRS DS EPICS Disply’.
A DM display will begin and show a bar-graph representation of the
current arbitrary waveform being generated.
To make a change, move the sliders as needed and press the ‘Set’
button.
It is expected that the
above slider User Interface should be sufficient for E-158 usage.
In the case that a finer time resolution is needed, the Engineering
Panel may be used. This panel is
available by pressing the ‘Eng. Page access’ button on the slider panel.
E-158 desires that
software (temporarily) limit the maximum voltage generated from the DS345.
To facilitate this, entry of voltages in either of the Slider and
Engineering panel will be clipped to the value entered in the ‘Voltage Limit
Override’ box of the Engineering Panel.
The user interface is
implemented using both DM
/ DM2K
client and GPIB support for EPICS.
The EPICS IOC/DM/DM2K application source code can be accessed thru our CVS
environment by checking out with the command ‘cvs checkout drrf’. The
application currently runs on the damping
ring RF IOC.
Number |
Date
discovered |
Description |
WorkAround |
Possible
Reason |
Fixed? |
1 |
January
15, 2001 |
Attempting
to run from the SCP on either the two Xterminals at CID doesn’t
work! |
1)
log into unix account at opi00gtw04 2)Type
the command: /afs/slac/Stanford/edu/g/pepii/ctrl/prod/epicsApp/script/cssrsd2k |
Xterminals
not enough memory? |
Not
Yet |
Software Application: Glen Wetzel
CID User: Jim
Turner
CID User: Axel
Brachmann
EPICS IOC Software: Stephanie
Allison
Last Updated: January 31, 2002