Appendix B—Using the Command Interface 6323 0-300-212
Conditional Energy April2001
©200 1 Schneider Electric All Rights Reserved
188
Circuit monitorregisters 1728–1744 are conditional energy registers.
Conditionalenergy can be controlled in one of two ways:
•Overt he communicationslink, by writing commands to the circuit
monitor’scommand interface, or
•Bya digital input—for example, conditionalenergy accumulates when the
assigneddigital input is on, but does not accumulate when the digital input
is off.
The followingprocedures tell how to set up conditionalenergy for command
interfacecontrol, and fordigital input control. The procedures referto register
numbersand command codes. For a listing of circuit monitor registers,
see Appendix A—AbbreviatedRegister Listing on page 127. For a listing
of command codes,see Table B–2 on page 183 in this chapter.
Set Control—To

set control

ofconditional energy to the command interface:
1. Write command code 9020 to register 8000.
2. In register 3227, set bit 6 to 1 (preserve other bits that are ON).
3. Write 1 to register 8001.
4. Write command code 9021 to register 8000.
Start—To

start

conditionalenergy accumulation, write commandcode 6321
to register 8000.
Verify Setup—To

verify proper setup

, read register1794. The register
should read 1,indicating conditional energy accumulation is ON.
Stop—To

stop

conditionalenergy accumulation, write command code 6320
to register 8000.
Clear—To

clear

allconditional energy registers (1728-1747),write command
code 6212 to register8000.
Set Control—Toconfigure conditional energyfor digital input control:
1. Write command code 9020 to register 8000.
2. In register 3227, set bit 6 to 0 (preserve other bits that are ON).
3. Configure the digital input that will drive conditional energy accumulation.
Forthe appropriate digital input, write 3 to the

Base +9

register. See the
digital inputtemplates in Table A–4onpage166in Appendix A—
Abbreviated Register Listing.
4. Write 1 to register 8001.
5. Write command code 9021 to register 8000.
Clear—Toclear all conditional energyregisters (1728–1747), write
command code 6212 toregister 8000.
Verify Setup—To

verify proper setup

, read register1794. The register
should read 0 when thedigital input is off, indicating that conditional energy
accumulationis off. The register should read 1 when conditional energy
accumulationis on.
CONDITIONAL ENERGY
Command Interface Control
Digital Input Control