Gbs-elektronik MCA-527 Firmware Commands Manual de usuario Pagina 10

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MCA527
Command name CMD_SET_INPUT_POLARITY
Compatibility Identical to the MCA166 command.
Execution right Necessary
Description The command sets the input polarity for the internal amplifier.
ip = 0 positive input signals
ip = 1 negative input signals
The command is ignored and responds with an error value if a measurement is still running.
Format integer integer integer long integer
Parameter preamble command ip 0 end flag
Byte string (HEX) A5 5A 56 00 ip 00 00 00 00 00 B9 9B
Command name
CMD_SET_MCA_INPUT
Compatibility Compatible to the MCA166 command.
Execution right Necessary
Description The command sets the input to shaping or to direct.
ip = 0 input shaping (equivalent to 'input amplifier' of the MCA166)
ip = 3 input direct (0 … +3V, no PUR, obsolete, for compatibility with older applications)
ip = 4 input direct (0 … -3V, no PUR, obsolete, for compatibility with older applications)
ip = 5 input direct (polarity according to CMD_SET_INPUT_POLARITY, gain according to
CMD_SET_GAIN, no PUR)
The command is ignored and responds with an error value if a measurement is still running.
Format integer integer integer long integer
Parameter preamble command ip 0 end flag
Byte string (HEX) A5 5A 54 00 ip 00 00 00 00 00 B9 9B
Command name CMD_SET_MCS_INPUT
Compatibility Identical to the MCA166 command.
Execution right Necessary
Description The command sets the input for the Multi-Channel Scaler.
ip = 0 external TTL signals
17
ip = 1 internal count rate signal
ip = 2 counts only pulses with amplitude between LLD and ULD threshold
The command is ignored and responds with an error value if a measurement is still running.
Format integer integer integer long integer
Parameter preamble command ip 0 end flag
Byte string (HEX) A5 5A 55 00 ip 00 00 00 00 00 B9 9B
17 Note, there are hardware modifications without offset DAC and without hardware-based coarse gain. In such a case, this MCS
input mode works only properly if the input signal is adjusted by default for this mode.
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