3300 ACM Installation and Operation Manual Power Measurement Ltd.
Appendix B: Firmware Versions B-1
APPENDIX B
3300 ACM FIRMWARE VERSIONS
This following table lists each firmware version release for the
3300 ACM and the new features or performance enhance-
ments added with each release.
The version number can be identified from the display module
of the 3300 ACM by entering program mode and going to the
FIRMWARE REV parameter under the DIAGNOSTICS group.
If your 3300 ACM is currently using a firmware version older
than the most recent version listed in the table below, you
may upgrade the software in that unit by contacting your
local representative or the manufacturer. Either contact will
need to know the serial number of the 3300 ACM and the
current firmware version installed. The serial number can also
be viewed in the DIAGNOSTICS group.
Most upgrades to the 3300 ACM will require a simple
download of firmware data into the on-board program
memory inside the unit.
VERSION RELEASE DATE DESCRIPTION
V 1.0.0.1 May 1991 •Initial release.
V1.1.x.x January 1992 • Sliding Window Demand functions offered as options
(previously, only Thermal Demand functions available).
•# OF DMD PERIODS setup parameter added.
•RS-485 port KWH PULSE output function expanded to provide either
pulse or transition output. PULSE FORMAT and PULSE DURATION setup
parameters added.
•Modicon Modbus compatibility added as standard feature. PROTOCOL
and REGISTER SIZE setup parameters added. AMPS SCALE range
increased to 30,000.
•Power factor polarity via communications modified: Leading PF = positive
number, Lagging PF = negative. (Note: This change does not affect front
panel LEAD/LAG display indication.)
•Manual sliding window demand synchronization added.
•All real-time demand parameters are now reset when Min/Max reset.
V1.2.x.x February 1993 •FORMAT parameter added to allow customization of phase labels and
decimal format.
•CONTRAST/ANGLE parameter added for LCD display.
•CLEAR STATUS? parameter added to allow clearing of diagnostic flags.
•Auto Function Cycling Mode added. 4-wire Wye / 2½ element connection
mode (3 WIRE WYE) and demonstration mode (DEMO) added to VOLTS
MODE options.
V.1.2.2.x November 1993 •Decimal display capability and high resolution communication packet
format added.
V.1.3.x.x September 1994 •Added ability to change protocol from PML to Modbus via
communications.
V.1.3.1.x April 1995 • Demand calculations are reset when any operating parameter is changed
(e.g. - volts scale, current scale, demand, period, etc.)
•Demand min/max comparisons made after demand has reached 99% of
its' steady state value
•Power factor sign determined independently on each phase.
Courtesy of NationalSwitchgear.com
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