155
SCPI register tree shown in Figure 6–1 describes the structure of status, events, faults, messaging
and service request registers. Condition registers hold a snapshot of the actual state.
The Enable registers can be set by the user to enable SRQ (Service request) in case of a condition
change. Event registers latch condition registers state, if the corresponding Enable registers are set
to logical one. The Event registers remain set (latched) until the user reads the register. Reading
the register clears its values until the next event.
NOTE
Event register does not specify that a single condition event has occurred. In the period where an
event has occurred and user has read the value, the Condition register might change its value
multiple times.
6.2.2 Questionable Condition (Fault Register) Group Structure
Questionable condition fault register group holds a snapshot of the actual faults state of the power
supply at a present time. If a fault occurs, the corresponding bit is set. If a fault is removed, the
corresponding bit is cleared.
Some of the faults might quickly change state (clear faults) before the controlling PC detects it.
Events can be stored in the Event register if the Enable register allows it. Refer to STATUS
subsystem (section 4.14.9) Questionable Condition commands set. Table 6-1 describes bit
configuration of the questionable condition fault register group.
Over Temperature Protection
Table 6-1: Bit Configuration of Questionable Condition Register
To Next Page
Loading...
