Siemens ACCESS 9340 Reference Manual page 220

ACCESS 9340 and 9360 Meters
Appendix B—Using the Command Interface
Conditional Energy
Command Interface Control
EN–212
meter registers 1728–1744 are conditional energy registers.
Conditional energy can be controlled in one of two ways:
•
Over the communications link, by writing commands to the
meter's command interface, or
•
By a digital input—for example, conditional energy accumulates
when the assigned digital input is on, but does not accumulate
when the digital input is off.
The following procedures tell how to set up conditional energy for
command interface control, and for digital input control. The
procedures refer to register numbers and command codes. For a
listing of meter registers, see Appendix A—Register List on page
122. For a listing of command codes, see Table B–2 on page 205 in
this chapter.
•
Set Control—To set control of conditional 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 conditional energy accumulation, write command
code 6321 to register 8000.
•
Verify Setup—To verify proper setup, read register 1794. The
register should read 1, indicating conditional energy accumulation
is ON.
•
Stop—To stop conditional energy accumulation, write command
code 6320 to register 8000.
•
Clear—To clear all conditional energy registers (1728-1747),
write command code 6212 to register 8000.
© 2008 Siemens Energy & Automation, Inc. All Rights Reserved
PMCM-9340D-0208
2/2008