
41
STATus:OPERation:NTRansition
STATus:OPERation:PTRansition
These commands set or read the value of the Operation NTR (Negative-Transition) and PTR
(Positive-Transition) registers. These registers serve as polarity filters between the Operation Enable
and Operation Event registers to cause the following actions. This command is not channel specific, it
applies to the entire mainframe.
When a bit in the Operation NTR register is set to 1, then a 1-to-0 transition of the
corresponding bit in the Operation Condition register causes that bit in the
Operation Event register to be set.
When a bit of the Operation PTR register is set to 1, then a 0-to-1 transition of the
corresponding bit in the Operation Condition register causes that bit in the
Operation Event register to be set.
If the same bits in both NTR and PTR registers are set to 1, then any transition of that
bit at the Operation Condition register sets the corresponding bit in the Operation
Event register.
If the same bits in both NTR and PTR registers are set to 0, then no transition of that
bit at the Operation Condition register can set the corresponding bit in the Operation
Event register.
NOTE : Setting a bit in the PTR or NTR filter can of itself generate positive or negative events in the
corresponding Operation Event register.
Command Syntax STATus:OPERation:NTR <NR1>
STATus:OPERation:PTR <NR1>
Parameters 0 to 32767 | MIN | MAX
Default Value 0
Query Syntax STATus:OPERation:NTR?
STATus:OPERation:PTR?
Returned Parameters <NR1> (register value)
Bit configuration of Operation Enable register.
Bit Position 7 6 5 4 3 2 1 0
Bit Name RSF RC OT UP OP UC OC VF
Bit Weight 218 64 32 16 8 4 2 1
Bit Position 15 14 13 12 11 10 9 8
Bit Name LVP OSC PS UV OV UNR RI UVL
Bit Weight 32768 16384 8192 4096 2048 1024 512 256
VF Voltage fault has occurred
OC Over-current has occurred
UC Under-current has occurred
OP Over-power has occurred
UP Under-power has occurred
OT Over-temperature has occurred
RC Reverse-current has occurred
RSF Remote sense fault has occurred
UVL Under-voltage lock out has occurred
RI Remote Inhibition has occurred
UNR Input is unregulated
OV Over-voltage has occurred
UV Under-voltage has occurred
PS Protection shutdown circuit has tripped
OSC Oscillation protection has occurred
LV Low-voltage has occurred
Important Note: Please refer to the eLOAD Operation Manual for Protection or Fault Condition Descriptions
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