GBS Elektronik MCA-527 Firmware Commands - Manual (Page 18)

MCA527
Command name CMD_SET_BIAS
Compatibility Compatible to the MCA166 command.
Execution right Necessary
Description The command sets the detector high voltage and controls the HV inhibit input.
hv:
0 ... 3600 V
i = 0 Inhibit off
i = 1 ”Canberra HPGe mode”, HV shut down if inhibit input < 0.5V 20
i = 2 “DSG HPGe mode”, HV shut down if inhibit input < 0.5V 20
i = -1 ”Ortec HPGe mode”, HV shut down if inhibit input ≥ 5V
Format integer integer integer integer integer integer
Parameter preamble command hv i 0 end flag
Byte string (HEX) A5 5A 4F 00 hv
l
hv
h
i
l
i
h
00 00 B9 9B
Remarks The Lite version provides no HV inhibit input. Setting the HV inhibit input on is ignored.
The OEM version provides neither HV nor HV inhibit input. All settings are ignored.
If the connected detector supplies detector information, the MCA527 compares the polarity of the
detector with that of the power module. If the polarities are different, all settings are ignored.
Command name CMD_SET_PIN5_CURRENT_SOURCE
Compatibility New MCA527 command
Execution right Necessary
Description The command switches the current source (cs) on SUB-D9 pin5 on (= 1) or off (= 0).
Format integer integer integer long integer
Parameter preamble command cs 0 end flag
Byte string (HEX) A5 5A 19 01 cs 00 00 00 00 00 B9 9B
Remarks The SUB-D9 pin5 is supported by the full version and partially by OEM version.
20 Mode 1 and 2 are identical. The difference is made by reasons of legacy.
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