STATUS REGISTERS
133
Channel Status
Description
Each channel has a dedicated Channel Status
Register group. These registers show if any errors
or faults have occurred to a specific channel.
The Channel Status Register group consists of: the
Condition, EVENT and ENABLE registers as well
as PTR/NTR (positive and negative transition)
filters.
Protection Bits
OC If an over current condition occurs the
OC bit (bit 0) is set. The OC bit can only
be cleared with
the :LOAD:PROTection:CLEar command.
OV If an over voltage condition occurs the
OV bit (bit 1) is set. The OV bit can only
be cleared with
the :LOAD:PROTection:CLEar command.
OP If an over power condition occurs the OP
bit (bit 2) is set. The OP bit can only be
cleared with
the :LOAD:PROTection:CLEar command.
RV If a reverse voltage condition occurs the
RV bit (bit 3) is set. The RV bit is
automatically cleared after the reverse
voltage is removed.
OT When the internal temperature exceeds
85˚C the OT bit will be set. The OT bit is
automatically cleared after the
temperature goes below 85˚C.
PEL-2000 Programming Manual
134
G/N The Go/NoGo bit is set when Go/NoGo
limits have been exceeded, when
Go/NoGo SPEC has been enabled.
UVP If the under voltage condition occurs the
UVP bit is set.
Condition
Register
The condition register indicates the status of the
electronic load. The condition register can only be
changed by a change in the condition of the
electronic load. Reading the condition register does
not change the state of the condition register.
PTR/NTR
Register
The PTR/NTR (Positive/Negative transition)
register determines the type of transition
conditions that will trigger an event. Only the
Channel Status Register and Questionable Status
Register can be transition programmed
Positive Transition 01
Negative Transition 10
Event Register
The Event Register indicates if an event has been
triggered according to the transition settings from
the PTR/NTR Register.
Enable Register
The Enable register determines which status
event(s) are enabled. Any status events (OC, OV,
OP, RV, OT, G/N, UVP) that are enabled will set
the corresponding channel bit in the Channel
Summary Event Register.
Channel Summary
Description
The Channel Summary Registers consolidate the
channel status of all 4/8 channels, depending on
the electronic load.
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