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63230-500-225A2 PowerLogic
TM
Series 800 Power Meter
3/2011 Appendix B—Register List
© 2011 Schneider Electric All Rights Reserved
81
Supported Modbus Commands
Table B–3 provides the Modbus commands that the PM800 Series meters support. For an
up-to-date register list, see ““Register List Access”” at the start of this chapter.
Resetting Registers
Table B–4 provides the commands needed to reset many of the power meter features. You
can perform these resets simply by writing the commands into register 4126.
Table B–3: Modbus Commands
Command Description
0x03 Read holding registers
0x04 Read input registers
0x06 Preset single registers
0x10 Preset multiple registers
0x11
Report ID
Return String
byte 1: 0x11
byte 2: number of bytes following without crc
byte 3: ID byte = 250
byte 4: status = 0xFF
bytes 5+: ID string = PM8xx Power Meter
last 2 bytes: CRC
0x2B
Read device identification, BASIC implementation (0x00, 0x01, 0x02 data),
conformity level 1,
Object Values
0x01: If register 4128 is 0, then “Schneider Electric. If register 4128 is 1,
then “Square D”
0x02: “PM8xx”
0x03: “Vxx.yyy” where xx.yyy is the OS version number. This is the
reformatted version of register 7001. If the value for register 7001 is 11900,
then the 0x03 data would be “V11.900”
Table B–4: Register Listing—Reset Commands
Reset Commands—Write commands to Register 4126.
Command Parameters Notes
666 Restart demand metering
1115 Reset Meter
3211 Reset all alarms to default values
3320 De-energize digital output
3321 Energize digital output
3361 Reset digital output counter
3365 Reset digital input counters
6209
Register Energy value to
Preset Energy Values
7016 4000
7017 4001
7018 4002
7019 4003
7020 4004
7021 4005
10001 Clear the Usage Timers. (Set to 0)
14255 Reset all Min/Max Values. (Sets values to defaults)
21212 Reset Peak Demand values. (Set to 0)
30078 Clear all Energy Accumulators. (Set to 0)