An unofficial summary of facts (addresses, types, units, scaling) from the maker's manual. Not affiliated with the maker; values can differ by firmware or model. Always check the device manual before writing (run commands, settings).
Default communication
| Protocol | Modbus RTU |
|---|---|
| Baud (factory) | 19200 bps — options: 4800, 9600, 19200, 38400 |
| Data · parity · stop | 8 · Even · 1 |
| Max per request | 125 registers |
| Manual address style | 40001/30001 style (wire address + 1, first digit = table) |
- Addressing: the read example (p.205 (PDF 209)) sends slave 11h, FC03, start 03 EB (=1003), 3 registers, CRC 77 2B to read 41004-41006 (Pr.4-6); the write example (p.206 (PDF 210)) sends 05 06 00 0D 17 70 17 99 to write 60 Hz to 40014. Frame address = manual number - 40001. CRCs match calculation.
- To use Modbus RTU set Pr.549 = 1 (default 0 = Mitsubishi protocol). Pr.117 station default 0 means 'no reply', so set 1-247. Pr.118 default 192 = 19200 bps (48/96/192/384), Pr.120 default 2 = even parity, 1 stop bit (0 = no parity, 2 stop bits; 1 = odd, 1 stop bit), 8 data bits fixed (p.201 (PDF 205), p.202 (PDF 206)).
- Function codes 03, 06, 08, 10, 46. Up to 125 registers per read. Modbus RTU cannot be used in PU operation mode; use NET mode.
Registers (28)
«Wire» is the 0-based address in the request frame (PortDock's «0-based» notation). Value = raw × scale. Table: HR holding register, IR input register, CO coil, DI discrete input. Function codes in hex.
28
Swipe the table sideways — the first column (manual address) stays put.
| Manual | Wire | Table | Name | Type | Unit · scale | R/W | FC | Details |
|---|---|---|---|---|---|---|---|---|
| 40002 | 1 (0x0001) | HR | Inverter reset | U16 | W | 06·10 | Write any value. No response p.210 (PDF 214) | |
| 40009 | 8 (0x0008) | HR | Inverter status / control input instruction | U16 | R/W | 03·06·10 | Write = control input, read = inverter status. Signals in brackets are initial assignments (change with Pr.180- terminal functions). Availability depends on date assembled (Ver.UP mark in the manual). b0 Write: stop / Read: RUN (running) · b1 Write: forward rotation / Read: forward running · b2 Write: reverse rotation / Read: reverse running · b3 Write: RH (high speed) / Read: SU (up to frequency) · b4 Write: RM (middle speed) / Read: OL (overload) · b5 Write: RL (low speed) · b6 Read: FU (frequency detection) · b7 Write: second function selection / Read: ABC (fault) · b8 Write: terminal 4 input selection · b9 Read: SO (safety monitor output) · b10 Write: output stop · b15 Read: fault occurrence p.210 (PDF 214) | |
| 40010 | 9 (0x0009) | HR | Operation mode / inverter setting | U16 | R/W | 03·06·10 | Values are the read mode. Write: 0010h = EXT, 0011h = PU, 0014h = NET (depends on Pr.79/Pr.340) 0 = EXT · 1 = PU · 2 = EXT JOG · 3 = PU JOG · 4 = NET · 5 = PU+EXT p.210 (PDF 214) | |
| 40014 | 13 (0x000D) | HR | Running frequency (RAM) | U16 | ×0.01 Hz | R/W | 03·06·10 | Speed in 1 r/min increments depending on Pr.37. Manual FC06 example: 60 Hz = 1770h p.210 (PDF 214) |
| 40015 | 14 (0x000E) | HR | Running frequency (EEPROM) | U16 | ×0.01 Hz | W | 06·10 | p.210 (PDF 214) |
| 40201 | 200 (0x00C8) | HR | Output frequency | U16 | ×0.01 Hz | R | 03 | Integer (1) when Pr.37 = 0.01-9998 p.211 (PDF 215) |
| 40202 | 201 (0x00C9) | HR | Output current | U16 | ×0.01 A | R | 03 | p.211 (PDF 215) |
| 40203 | 202 (0x00CA) | HR | Output voltage | U16 | ×0.1 V | R | 03 | p.211 (PDF 215) |
| 40205 | 204 (0x00CC) | HR | Frequency setting | U16 | ×0.01 Hz | R | 03 | p.211 (PDF 215) |
| 40208 | 207 (0x00CF) | HR | Converter output voltage | U16 | ×0.1 V | R | 03 | p.211 (PDF 215) |
| 40209 | 208 (0x00D0) | HR | Regenerative brake duty | U16 | ×0.1 % | R | 03 | p.211 (PDF 215) |
| 40210 | 209 (0x00D1) | HR | Electronic thermal relay load factor | U16 | ×0.1 % | R | 03 | p.211 (PDF 215) |
| 40211 | 210 (0x00D2) | HR | Output current peak value | U16 | ×0.01 A | R | 03 | p.211 (PDF 215) |
| 40214 | 213 (0x00D5) | HR | Output power | U16 | ×0.01 kW | R | 03 | p.211 (PDF 215) |
| 40215 | 214 (0x00D6) | HR | Input terminal status | U16 | R | 03 | b0 STF · b1 STR · b4 RL · b5 RM · b6 RH p.211 (PDF 215) | |
| 40216 | 215 (0x00D7) | HR | Output terminal status | U16 | R | 03 | Availability depends on date assembled (Ver.UP mark in the manual). b0 RUN · b5 ABC · b7 SO p.211 (PDF 215) | |
| 40220 | 219 (0x00DB) | HR | Cumulative energization time | U16 | h | R | 03 | p.211 (PDF 215) |
| 40223 | 222 (0x00DE) | HR | Actual operation time | U16 | h | R | 03 | p.211 (PDF 215) |
| 40224 | 223 (0x00DF) | HR | Motor load factor | U16 | ×0.1 % | R | 03 | p.211 (PDF 215) |
| 40225 | 224 (0x00E0) | HR | Cumulative power | U16 | kWh | R | 03 | p.211 (PDF 215) |
| 40261 | 260 (0x0104) | HR | Motor thermal load factor | U16 | ×0.1 % | R | 03 | p.211 (PDF 215) |
| 40262 | 261 (0x0105) | HR | Inverter thermal load factor | U16 | ×0.1 % | R | 03 | p.211 (PDF 215) |
| 40263 | 262 (0x0106) | HR | Cumulative power 2 | U16 | ×0.01 kWh | R | 03 | p.211 (PDF 215) |
| 40264 | 263 (0x0107) | HR | PTC thermistor resistance | U16 | ×0.01 kΩ | R | 03 | p.211 (PDF 215) |
| 40501 | 500 (0x01F4) | HR | Fault record 1 (latest) | U16 | R/W | 03·06·10 | Low byte is the fault code (00xxh). Writing any value clears the whole fault history 0 = No fault · 16 = E.OC1 · 17 = E.OC2 · 18 = E.OC3 · 32 = E.OV1 · 33 = E.OV2 · 34 = E.OV3 · 48 = E.THT · 49 = E.THM · 64 = E.FIN · 82 = E.ILF · 96 = E.OLT · 112 = E.BE · 128 = E.GF · 129 = E.LF · 144 = E.OHT · 145 = E.PTC · 176 = E.PE · 177 = E.PUE · 178 = E.RET · 192 = E.CPU · 196 = E.CDO · 197 = E.IOH · 199 = E.AIE · 201 = E.SAF · 245 = E.5 p.212 (PDF 216) | |
| 40502 | 501 (0x01F5) | HR | Fault record 2 | U16 | R | 03 | Low byte is the fault code 0 = No fault · 16 = E.OC1 · 17 = E.OC2 · 18 = E.OC3 · 32 = E.OV1 · 33 = E.OV2 · 34 = E.OV3 · 48 = E.THT · 49 = E.THM · 64 = E.FIN · 82 = E.ILF · 96 = E.OLT · 112 = E.BE · 128 = E.GF · 129 = E.LF · 144 = E.OHT · 145 = E.PTC · 176 = E.PE · 177 = E.PUE · 178 = E.RET · 192 = E.CPU · 196 = E.CDO · 197 = E.IOH · 199 = E.AIE · 201 = E.SAF · 245 = E.5 p.212 (PDF 216) | |
| 41007 | 1006 (0x03EE) | HR | Acceleration time (Pr.7) | U16 | ×0.1 s | R/W | 03·06·10 | Register = parameter number + 41000. Manual FC10 example: 0.5 s = 0005h p.208 (PDF 212) |
| 41008 | 1007 (0x03EF) | HR | Deceleration time (Pr.8) | U16 | ×0.1 s | R/W | 03·06·10 | Manual FC10 example: 1 s = 000Ah p.208 (PDF 212) |
Read it with PortDock
- Install the free PortDock Modbus Master and connect with the device's settings.
- On the table toolbar, «Device profile…» → pick this device → «Load». Polling tables, names, types and the Slave ID are filled in (optionally the serial settings too).
- Names carry the unit and scale (e.g. «×0.01 Hz»). Values on screen are raw — multiply by the scale.
- To test your program without the device, PortDock Modbus Slave's «Emulate device…» serves the same map with example values.
Download JSON
- mitsubishi-electric/fr-d700.json (GitHub raw) · copy on this site · history
- schema.json — format (JSON Schema). table, address (0-based), type and order match the PortDock CSV.
- License: CC BY 4.0 — please cite:
PortDock device register maps, v2026.10 · 09ac1d0b2792, https://portdock.dev/devices/
and this page. LICENSE · data bundle, version and changelog - Found a mistake? Please open a GitHub issue with the manual page.
Sources
- FR-D700 INSTRUCTION MANUAL (Applied) — Mitsubishi Electric Corporation, IB(NA)-0600366ENG-H, June 2018 · Modbus RTU p.201 (PDF 205) to p.212 (PDF 216), parameter list Pr.7/8 increments 0.1 s p.60 (PDF 71) · checked 2026-10-23