BNC 1105 Universal Counter - Manual (Page 163)

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resolution is 1.
*SRE?
Queries the Service Request Enable Register.
Return
Numeric data transferred as ASCII bytes in format.
The value of bit 6 and unused bits is zero when queries.
Notes
This value is cleared and set back to zero after the counter has been turned
off.
This value is not affected by save/recall and *RST command.
*STB?
Queries the Status Byte Register. This query does not directly change the Status
Byte Register (including the MSS/RQS bit) or anything related to the generation
of SRQ. The response value when rounded to an integer value and expressed in
base 2(binary), represents the bit values of the Status Byte Register.
Return
Numeric data transferred as ASCII bytes in format.
Range is 0 to 255.
The value of unused bits is zero when queried.
The Master Summary Status, not the RQS message, is reported on bit 6.
Master Summary Status indicates that the counter has at least one reason
for requesting service. (The Master summary Status is not sent in response
to a serial poll; the IEEE 488.1 RQS message is sent instead.) It is the
inclusive OR of the bitwise combination (excluding bit6) of the Status Byte
Register and the Service Request Enable Register,
*TRG
This command is the device-specific analog of the IEEE 488.1 group Execute
Trigger (GET) interface message, and has exactly the same effect.
This command will perform the action defined by the *DDT command.
*TST?