C-28 IM02601001E www.eaton.com
Modbus Register Maps
The following is a complete Modbus map, including option cards, for communications through the RS485 port.
Modbus Address
Hex Decimal Description
1
Format Range6 Units or Resolution Comments # Reg
Fixed Data Section
Identification Block
read-only
0000 - 0007 1 - 8 Reserved ASCII 16 char none Reserved 8
0008 - 000F 9 - 16 Meter Serial Number ASCII 16 char none
8
0010 - 0010 17 - 17 Meter Type UINT16 bit-mapped -------t vvvvvvvv t = transducer model
(1=yes, 0=no),
vvv = Model:
V43 = PXM2250
V44 = PXM2260
V45 = PXM2270
1
0011 - 0012 18 - 19 Firmware Version ASCII 4 char none
2
0013 - 0013 20 - 20 Map Version UINT16 0 to 65535 none
1
0014 - 0014 21 - 21 Meter Configuration UINT16 bit-mapped -----ccc --ffffff ccc = CT denominator
(1 or 5),
ffffff = calibration
frequency (50 or 60)
1
0015 - 0015 22 - 22 ASIC Version UINT16 0-65535 none
1
0016 - 0017 23 - 24 Boot Firmware Version ASCII 4 char none
2
0018 - 0018 25 - 25 Option Slot 1 Usage UINT16 bit-mapped same as register 10000
(0x270F)
1
0019 - 0019 26 - 26 Option Slot 2 Usage UINT16 bit-mapped same as register 11000
(0x2AF7)
1
001A - 001D 27 - 30 Meter Type Name ASCII 8 char none
4
001E - 0026 31 - 39 Reserved
Reserved 9
0027 - 002E 40 - 47 Reserved
Reserved 8
Block Size: 47
Meter Data Section
2
Primary Readings Block
read-only
03E7 - 03E8 1000 - 1001 Volts A-N FLOAT 0 to 9999 M volts
2
03E9 - 03EA 1002 - 1003 Volts B-N FLOAT 0 to 9999 M volts
2
03EB - 03EC 1004 - 1005 Volts C-N FLOAT 0 to 9999 M volts
2
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