Cmd_set_time_per_channel527, Cmd_set_gain, Cmd_set_offset_dac – GBS Elektronik MCA-527 Firmware Commands User Manual
Page 9: Description of the mca527 firmware commands
Description of the MCA527 Firmware Commands
Command name
CMD_SET_TIME_PER_CHANNEL527
Compatibility
New MCA527 command.
Execution right
Necessary
Description
The command sets the dwell time per channel (tpc: 1 … 42949672
) for the MCS mode. The dwell
time is tpc * 0.1 ms.
The command is ignored and responds with an error value if a measurement is still running.
Format
integer
integer
long
integer
integer
Parameter
preamble
command
tpc
0
end flag
Byte string (HEX)
A5
5A
15
01
tpc
l
...
...
tpc
h
00
00
B9
9B
Remarks
This command has been added for setting the dwell time with higher resolution.
Command name
CMD_SET_GAIN
Compatibility
Compatible to the MCA166 command.
Execution right
Necessary
Description
The command sets the amplifier coarse(cg) and fine gain(fg).
cg:
2, 5, 10, 20, 50, 100, 200, 500 or 1000
fg:
5000 ... 65000
Format
integer
integer
integer
integer
integer
integer
Parameter
preamble
command
cg
fg
0
end flag
Byte string (HEX)
A5
5A
4C
00
cg
l
cg
h
fg
l
fg
h
00
00
B9
9B
Remarks
Not all coarse gain levels are realized by hardware. Some coarse gain levels are realized by
firmware. The information that coarse gain levels are really hardware-based is returned by
CMD_QUERY_STATE527, byte offset 125.
Command name
CMD_SET_OFFSET_DAC
Compatibility
New MCA527 command.
Execution right
Necessary
Description
The command sets the offset DAC
dac:
0 … 16383
Format
integer
integer
integer
long
integer
Parameter
preamble
command
dac
0
end flag
Byte string (HEX)
A5
5A
0A
01
dac
l
dac
h
00
00
00
00
B9
9B
15 As from firmware version 13.04, the upper bound has been reduced in favor of other requirements.
16 There are hardware modifications without offset DAC. In such a case, the command has no effect.
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