Event Status Register (ESR)
A two-byte register, in which the lower bits represent conditions of
the Calibrator. Cleared when read and when power is reset.
Event Status Enable Register (ESE)
Enables and disables bits in the ESR. Setting a bit to 1 enables the
corresponding bit in the ESR, and setting it to 0 disables the
corresponding bit. Cleared at power reset. Bit assignments for the
ESR and the ESE respectively are shown below.
15 14 13 12 11 10 9 8
0 0000000
7 6543210
PON 0 CME EXE DDE QYE 0 OPC
PON
Power On. Set to 1 if power was turned on and off before
the Event Status Register was read.
CME
Command Error. Set to 1 when the calibrator receives an
invalid command. Entering an unsupported RTD type may
cause such an error.
EXE
Execution Error. Set to 1 when the calibrator runs into an
error while executing is last command. A parameter that
has too significant figures may cause such an error.
DDE
Device-dependent Error. Set to 1 when, for example, the
output of the calibrator is overloaded.
QYE
Query Error.
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