Martel Electronics MC1200 - Manual (Page 31)

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Service Request Enable Register (SRE)
Enables or disables the bits of the STB. Cleared when power is reset. Setting bits to 0
disables them in the STB. Setting the bits to 1 enables them. Bit assignments for the SRE and
the STB are shown below.
7 6 5 4 3 2 1 0
0 MSS ESB 0 EAV 0 0 0
MSS
Master Summary Status. Set to 1 when ESB or EAV are 1 (enabled). Read using
the *STB? command.
ESB
Set to 1 when at least one bit in ESR is 1.
EAV
Error Available. An error has been entered into the error queue, and may be read
using the Fault? command.
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 0 0 0 0 0 0 0
7 6 5 4 3 2 1 0
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.