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High Power Electronic Load 63200A Series Operation & Programming Manual
5.2.2
Channel Summary
■
The Channel Summary registers summarize the channel status conditions up to 10
channels.
■
When an enabled bit in the Channel Status Event register is set, it causes the
corresponding channel bit in the Channel Summary Event register to be set.
■
Reading the Event register will reset it to zero.
■
The Channel Summary Enable register can be programmed to specify the channel
summary event bit from the existing channels that is logically ORed to become Bit 2
(CSUM bit) in the Status Byte register.
5.2.3
Questionable Status
■
The Questionable Status registers inform you one or more questionable status
conditions which indicate certain errors or faults have occurred to at least one channel.
Table 5-2 lists the questionable status conditions that are applied to the electronic load.
These conditions are same as the channel status conditions. Refer to Table 5-1 for a
complete description.
■
When a corresponding bit of Questionable Status Condition register is set, it indicates
the condition is true.
■
Program the PTR/NTR filter to select the way of condition transition in the Questionable
Status Condition register that will be set in the Event registers.
■
Reading the Questionable Status Event register will reset it to zero.
■
The Questionable status Enable register can be programmed to specify the
questionable status event bit that is logically ORed to become Bit 3 (QUES bit) in the
Status Byte register.
Mnemonic
TE/OT
OV
CE/OC
PE/OP
RV
SYNC
MAX LIM
FAN
REMOTE
INHIBIT
5.2.4
Output Queue
■
The Output Queue stores output messages until they are read from the electronic load.
■
The Output Queue stores messages sequentially on a FIFO (First-In, First-Out) basis.
■
It sets to 4 (MAV bit) in the Status Byte register when there are data in the queue.
5-4
Table 5-2 Bit Description of Questionable Status
Bit
Value
0
1
1
2
2
4
3
8
4
16
5
32
6
64
7
128
8
256
Meaning
Temperature Error (Over temperature).
Over voltage.
Current Error (Over current).
Power Error (Over power).
Reverse voltage on input.
Synchronize timeout.
Maximum sine wave current limit
FAN fail.
Remote inhibit
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