Date Code 20020129
Configuration,
Fast Meter,
and
Fast Operate
Commands
D-5
SEL-387E Instruction Manual
xx
02 if VIWDG=1; 05 if VIWDG=2; 08 if VIWDG=3; FF if VIWDG=12
09 VAWX
0A VBWX
0B VCWX
4-bytes
Scale factor (200 · I
nom
) · CTR1 Winding 1
4-bytes
Scale factor (200 · I
nom
) · CTR2 Winding 2
4-bytes
Scale factor (200 · I
nom
) · CTR2 Winding 3
xxxxxxxx
Scale factor 100 · PTR voltage
3C23D70A
Scale factor (1/100)
1-byte Reserved
1-byte Checksum
A5D1
Fast Meter
Data Block
In response to the A5D1 request, the relay sends the following block:
Data Description
A5D1 Command
76
Message length (116 bytes)
1-byte Status
byte
Bit Usage
2 Self-test
warning
3 Self-test
failure
4 Settings
change
52-bytes
Integers for the following: IAW1, IBW1, ICW1, IAW2, IBW2, ICW2,
IAW3, IBW3, ICW3, VAWX, VBWX, VCWX, VDC (Imaginary values
first, followed by Real values). Note: the imaginary value for VDC is
always zero.
8-bytes Time
stamp
50-bytes
Digital banks -- targets 0 through 49
1-byte Reserved
1-byte Checksum
A5B9
Fast Meter
Status Acknowledge Message
In response to the A5B9 request, the SEL-387E Relay clears the Settings change (STSET) bit in
the Status Byte of the
Fast Meter
messages (A5D1, A5D2, and A5D3). The bit is set on power
up and on settings changes. If the STSET bit is set, the external device should request the A5C1,
A5C2, and A5C3 messages to determine if the scale factors or line configuration parameters
have been modified. No return response is given to the A5B9 request.
A5C2/A5C3 Demand/Peak Demand
Fast Meter
Configuration Messages
In response to the A5C2 or A5C3 request, the relay sends the following block:
Data Description
A5C2 or A5C3
Command; Demand (A5C2) or Peak Demand (A5C3)
A8
Message length (168 bytes)
