6166 DC Voltage Current Source Operation Manual
6.2.2 Status Register in 6166-Compatible Operation
6-13
Common conditions in which the Status Byte Register is cleared (=0)
• All cleared when the power is turned ON.
• Not cleared even if read by *STB?.
• Cleared when read by a serial poll.
Table 6-4 Status Byte Register (STB) in 6161-Compatible Operation
bit Name Description
0 LIMIT ON: Set to 1 when +/- VL or +/- IL limiter is detected.
OFF: Set to 1 when the limiter is released.
Set to 0 when read by a serial poll. However, if the limiter is released before read
by the serial pole, the SRQ bit is maintained before the serial pole is executed.
1 SYNTAX
ERROR
ON: Set o 1 when an unknown code, an error in grammar or an out-of-range setting is
detected.
Commands following the command in which this error is detected are ignored.
OFF: Set to 0 when a normal command is received.
2 PROGRAM END ON: Set to 1 when single scan reaches the last number.
OFF: Set to 0 when the next scan starts.
Set to 0 when read by a serial poll.
3 Not in use Always set to 0
4 FUN STOP ON: Set to 1 when fan stop is detected.
Not reset to 0 even if the fan stop is canceled.
OFF: Set to 0 when the power switch is set to OFF and then ON again.
5 Not in use Always set to 0
6 SRQ ON: Set to 1 when any of the STB incidents occurs.
OFF: Set to 0 when STB is read by a serial poll.
7 Not in use Always set to 0
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