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CHAPTER 5: COMMUNICATIONS
EPM 6000 MULTI-FUNCTION POWER METERING SYSTEM – USER GUIDE 5–5
Status Block
read-only
1387 - 1387 Meter Status UINT16 bit-mapped --exnpch ssssssss
exnpch = EEPROM block OK flags
(e=energy, x=max, n=min,
p=programmable settings,
c=calibration, h=header),
ssssssss = state (1=Run, 2=Limp,
10=Prog Set Update via buttons,
11=Prog Set Update via IrDA, 12=Prog
Set Update via COM2)
1
1388 - 1388
Limits Status
7
UINT16 bit-mapped 87654321 87654321
high byte is setpt 1, 0=in, 1=out
low byte is setpt 2, 0=in, 1=out
1
1389 - 138A Time Since Reset UINT32 0 to 4294967294 4 msec wraps around after max count
2
Block Size:
4
COMMANDS SECTION
4
Resets Block
9
write-only
4E1F - 4E1F Reset Max/Min Blocks UINT16
password
5
1
4E20 - 4E20
Reset Energy
Accumulators
UINT16
password
5
1
Block Size:
2
Meter Programming Block
read/conditional write
55EF - 55EF
Initiate Programmable
Settings Update
UINT16
password
5
meter enters PS update mode
1
55F0 - 55F0
Terminate Programmable
Settings Update
3
UINT16 any value
meter leaves PS update mode via
reset
1
55F1 - 55F1
Calculate Programmable
Settings Checksum
3
UINT16
meter calculates checksum on RAM
copy of PS block
1
55F2 - 55F2
Programmable Settings
Checksum
3
UINT16
read/write checksum register; PS
block saved in EEPROM on write
8
1
55F3 - 55F3
Write New Password
3
UINT16 0000 to 9999 write-only register; always reads zero
1
59D7 - 59D7
Initiate Meter Firmware
Reprogramming
UINT16
password
5
1
Block Size:
6
Other Commands Block
read/write
61A7 - 61A7 Force Meter Restart UINT16
password
5
causes a watchdog reset, always
reads 0
1
Block Size:
1
Encryption Block
read/write
658F - 659A
Perform a Secure
Operation
UINT16
encrypted command to read
password or change meter type
12
Block Size:
12
PROGRAMMABLE SETTINGS SECTION
Basic Setups Block
write only in PS update mode
752F - 752F
CT multiplier &
denominator
UINT16 bit-mapped
dddddddd
mmmmmmmm
high byte is denominator (1 or 5, read-
only),
low byte is multiplier (1, 10, or 100)
1
7530 - 7530 CT numerator UINT16 1 to 9999 none
1
7531 - 7531 PT numerator UINT16 1 to 9999 none
1
HEX
ADDRESS
DESCRIPTION
1
FORMAT RANGE
6
UNITS OR
RESOLUTION
COMMENTS # REG