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Accumulated Status, Status, and Fault Registers
Release 1.1 49
Accumulated Status, Status, and Fault Registers
The RS-232 option card uses three separate registers which are always active. They
are the accumulated status, status, and fault registers. You can use the status
commands shown in Table 3.6, “Status Commands” to activate the registers. The
bit register has eight conditions, each assigned a bit weight. When querying a
register, the controller returns a response which is the sum of the weights of all
relevant conditions.
Example:
The accumulated status register shows that PON, REM, CC and CV have all been
active since the last accumulated status register query.
Table 3.8 shows the mnemonics and bit weights which correspond to each register
condition. You can select conditions you want to monitor in the fault and status
register by using the MASK and UNMASK commands.
ASTS? Query the Accumulated Status register.
ASTS 771 Controller response.
771 = 512 + 256 + 2 + 1 = PON + REM + CC + CV