Martel Electronics DMC1410 - Manual (Page 36)

34
Indefinite ASCII (IAD)
Any ASCII characters followed by a terminator. For example:
*IDN? returns MARTEL, DMC1410, 250, 1.00
7.3-4 Calibrator Status
Status registers, enable registers, and queues provide status
information on the calibrator. Each status register and queue has a
summary bit in the Serial Poll Status Byte. Enable registers generate
summary bits in the Serial Poll Status Byte. The following is a list of
registers and queues along with their function.
Serial Poll Status Byte (STB)
The STB is sent when the calibrator responds to the *STB?
command. Figure 24 demonstrates how it functions. Cleared when
power is reset.
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.