Schneider Electric PM870 Manual De Usuario
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.
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.
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
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,
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”
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)