MBMap Registry
  1. Devices
  2. Mitsubishi Electric
  3. FR-E700

Mitsubishi Electric FR-E700 Modbus register map

Also covers FR-E720, FR-E740, FR-E720S, FR-E710W

FREQROL-E700 compact inverter with Modbus RTU on the PU connector

  • Official
  • 85 registers
  • Modbus RTU
  • Revision 1 · 2026-11-10

Official: Written from the manufacturer's documentation, but not tested on a device yet. Check the map against the manufacturer's documentation before you write to a live device. Tested it? Report a test.

Download .mbmap.json Raw JSON View on GitHub Suggest a correction Report a problem

Communication

Protocol
Modbus RTU
Unit ID
1
Serial
19200 8E1 · 19200 baud, 8 data bits, even parity, 1 stop bit
Byte / word order
ABCD · bytes big-endian, words high first
Addresses
1-based · wire address = address − 1

Connection values are defaults: the device may be configured differently.

Map

Registers
85 holding registers
Groups
8
Translation tables
7
Revision
1 · 2026-11-10
Added
()
File
maps/mitsubishi-electric/fr-e700.mbmap.json · 24 KB · history
SHA-256
d0769b6ef2c1e0d8642741d7c3764c0884a230c917418fa0307147003f31ea1b
Manufacturer
mitsubishielectric.com

Sources and notes

Source: Mitsubishi Electric FR-E700 Instruction Manual (Applied) IB(NA)-0600277ENG-G, MODBUS RTU communication

  • The manual numbers the registers 40001 and up; this map uses address_base 1, so address 201 is register 40201 and goes on the wire as 200.
  • The register layout is the same as the FR-D700 one: 40002 to 40015 are the system environment variables, 40201 and up the real-time monitor, 41000 plus the parameter number the parameters (Pr. 1 is 41001), and 40501 to 40508 the fault history.
  • Register 40009 holds the control input instruction when written and the inverter status when read; 40010 sets the operation mode when written and gives the mode status when read, so each is listed twice with a different access.
  • Write the running frequency to 40014 (RAM) for continuous changes and to 40015 (EEPROM) only for values to keep; the EEPROM has a limited number of writes.
  • The inverter must be in NET operation mode to accept commands from communications (Pr. 79, Pr. 340); Pr. 549 = 1 selects MODBUS RTU and the PU connector is the RS-485 port. Reset the inverter after changing the communication parameters.
  • Some monitor registers (40208 to 40212, 40214, 40220, 40223 to 40225, 40252 to 40254 and 40261 to 40263) depend on the date the inverter was assembled according to the manual; the monitored values are kept after a fault until reset.
  • Pr. 118 = 192 (19200 bit/s) and Pr. 120 = 2 (even parity, 1 stop bit) are the factory values. The factory station number Pr. 117 = 0 is broadcast and the inverter does not answer, so the unit_id here is 1, which must be set in Pr. 117. Pr. 119 (stop bit length and data length) applies to the Mitsubishi protocol only; MODBUS RTU always uses 8 data bits.
  • Only a selection of parameters is listed; any other parameter can be reached at 41000 plus its number. The analog calibration parameters C2 to C7 and C22 to C25 use special registers in the 41900, 42000 and 43900 ranges (see the manual).
  • Not tested on a device.
AreaAddressNameTypeAccessUnitScaleDescription
HR 2 uint16 W Write any value to reset the inverter
HR 3 uint16 W Write 0x965A; the communication parameters are not cleared
HR 4 uint16 W Write 0x99AA
HR 6 uint16 W Write 0x5A96
HR 7 uint16 W Write 0xAA99
HR 9 uint16 W Written value; bit 0 stop, 1 forward (STF), 2 reverse (STR), 3 RH, 4 RM, 5 RL, 7 second function (RT), 8 current input selection (AU), 10 output stop (MRS), 12 reset (RES). Reading the same register gives the inverter status
HR 9 bool bit 1 W
HR 9 bool bit 2 W
HR 9 bool bit 3 W Write; takes the function set by Pr. 180 to Pr. 184
HR 9 bool bit 4 W Write; takes the function set by Pr. 180 to Pr. 184
HR 9 bool bit 5 W Write; takes the function set by Pr. 180 to Pr. 184
HR 9 bool bit 7 W
HR 9 bool bit 8 W
HR 9 bool bit 10 W
HR 9 bool bit 12 W
HR 9 bool bit 0 R Variable, by Pr. 190 to Pr. 192
HR 9 bool bit 1 R
HR 9 bool bit 2 R
HR 9 bool bit 3 R
HR 9 bool bit 4 R
HR 9 bool bit 6 R
HR 9 bool bit 7 R Variable, by Pr. 190 to Pr. 192
HR 9 bool bit 15 R
HR 10 uint16 R Read value; write the operation mode with the register below
HR 10 uint16 W Writing is limited by Pr. 79 and Pr. 340
HR 14 uint16 RW Hz ×0.01 Written to RAM; the unit is 1 r/min when Pr. 37 is set to a value other than 0
HR 15 uint16 W Hz ×0.01 Written to EEPROM; same unit as register 14
HR 201 uint16 R Hz ×0.01 1 r/min when Pr. 37 is set
HR 202 uint16 R A ×0.01
HR 203 uint16 R V ×0.1
HR 205 uint16 R Hz ×0.01 1 r/min when Pr. 37 is set
HR 207 uint16 R % ×0.1
HR 208 uint16 R V ×0.1
HR 209 uint16 R % ×0.1
HR 210 uint16 R % ×0.1
HR 211 uint16 R A ×0.01
HR 212 uint16 R V ×0.1
HR 214 uint16 R kW ×0.01
HR 215 bool bit 0 R Input terminal status
HR 215 bool bit 1 R Input terminal status
HR 215 bool bit 4 R Input terminal status; function can be reassigned (Pr. 178 to Pr. 184, Pr. 190 to Pr. 192)
HR 215 bool bit 5 R Input terminal status; function can be reassigned (Pr. 178 to Pr. 184, Pr. 190 to Pr. 192)
HR 215 bool bit 6 R Input terminal status; function can be reassigned (Pr. 178 to Pr. 184, Pr. 190 to Pr. 192)
HR 215 bool bit 8 R Input terminal status
HR 215 bool bit 10 R Input terminal status
HR 216 bool bit 0 R Output terminal status; function can be reassigned (Pr. 178 to Pr. 184, Pr. 190 to Pr. 192)
HR 216 bool bit 1 R Output terminal status; function can be reassigned (Pr. 178 to Pr. 184, Pr. 190 to Pr. 192)
HR 216 bool bit 2 R Output terminal status; function can be reassigned (Pr. 178 to Pr. 184, Pr. 190 to Pr. 192)
HR 220 uint16 R h
HR 223 uint16 R h
HR 224 uint16 R % ×0.1
HR 225 uint16 R kWh
HR 252 uint16 R % ×0.1
HR 253 uint16 R % ×0.1
HR 254 uint16 R % ×0.1
HR 258 uint16 R Bit mask of the FR-A7AX E kit inputs X0 to X15; all zero when no option is fitted
HR 259 uint16 R Bit 0 is DY of the FR-A7AX E kit
HR 260 uint16 R Bit mask of the FR-A7AY E / FR-A7AR E kit outputs; all zero when no option is fitted
HR 261 uint16 R % ×0.1
HR 262 uint16 R % ×0.1
HR 263 uint16 R kWh ×0.01
HR 501 uint16 RW Low byte is the error code; writing any value to this register clears the whole fault history
HR 502 uint16 R
HR 503 uint16 R
HR 504 uint16 R
HR 505 uint16 R
HR 506 uint16 R
HR 507 uint16 R
HR 508 uint16 R
HR 1001 uint16 RW Hz ×0.01
HR 1002 uint16 RW Hz ×0.01
HR 1003 uint16 RW Hz ×0.01
HR 1007 uint16 RW s ×0.1
HR 1008 uint16 RW s ×0.1
HR 1009 uint16 RW A ×0.01
HR 1077 uint16 RW 0 = write only when stopped, 1 = no write, 2 = write in any mode
HR 1078 uint16 RW 0 = both directions, 1 = reverse prevented, 2 = forward prevented
HR 1079 uint16 RW 0, 1, 2, 3, 4, 6 and 7 are valid
HR 1117 uint16 RW 0 = no reply (broadcast); 1 to 247 with MODBUS RTU
HR 1118 uint16 RW Setting x 100 = bit/s
HR 1120 uint16 RW
HR 1122 uint16 RW s ×0.1 0 = communication allowed but E.PUE on switching to the command source; 0.1 to 999.8 s = signal-loss time; 9999 = no check
HR 1343 uint16 R
HR 1502 uint16 RW
HR 1549 uint16 RW Set to 1 for MODBUS RTU; takes effect after a reset

Help improve this map

Esc