Schneider Electric PM2100 / PM2200 Modbus register map

Device identity

What a tool can read to check that this map fits the connected device (SPEC.md section 4.7). Registers with a role are read like any other register.

Sources and notes

• Schneider Electric, PM2000 series firmware, revision history and Modbus register map, LCD v01.05.03 · version v1050_6, 2022-08
  spreadsheet Public_EM6400_PM2xxx PMC Register List_v1050_6.xls, sheet Register List

Source: Schneider Electric, PM2000 series firmware, revision history and Modbus register map, LCD v01.05.03

• Addresses are the register numbers of the register list (Modicon numbering, 1-based): the address on the wire is the register number minus 1.
• Registers marked RWC in the register list are changed through the command interface, so they are listed as read-only.
• Values the meter cannot provide read as the N/A value of their data type (0xFFFF, 0xFFFFFFFF, 0x8000 or a float NaN).
• Power factor registers are four-quadrant values from -2 to 2, not plain power factors: 0° = 1, 90° = 0, 180° = -1, 270° = 2. Above 1, the power factor is 2 minus the value and leading; below -1 it is -2 minus the value and leading; otherwise it is the value, lagging (unity at ±1).
• The register list does not state the order of the two registers of a 32-bit value; this map uses the order of the PM5000 family (most significant register first). If the values look wrong on a device, try little word order.
• Registers that exist only on some of the models say so in their description.
• Tested on two PM2130, both firmware 1.2.1.34 (register 1637 reads 1021), read over a Modbus TCP gateway, November 2026: on the first all 2418 registers read without errors, 367 of them as the N/A value (registers of other models, such as the phase energies of the PM2220 / PM2230, the multi-tariff energies, and unused setup). Checked: identification, setup, currents, voltages, frequency, power (L1 + L2 + L3 active power = total on both, -46.36 kW and 120.40 kW), power factor, and the 64-bit accumulated energies; 32-bit floats read correctly with most significant register first. On the second, 2412 registers read; alarm log entries 16 and 17 (11307-11315) got no response from the gateway. Both meters answer FC17 with illegal function.
• The integer power factors at 3196 and 3197 are sign-magnitude: bit 15 is the sign and bits 0-14 are thousandths (0x814F = -0.335 with the float at -0.336; on the second meter 3196 read 0x03AA = 0.938 and 3197 0x83AA, the float copy at 3194 being negative). The map reads the magnitude only; the sign is not decoded. Not tested: the models other than the PM2130.