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Variable frequency drives Modbus register maps
Updated 28 October 2026
24 variable frequency drives register maps from 11 manufacturers: ABB, Armstrong Fluid Technology, Danfoss, Danfoss VACON, Grundfos, Invertek Drives, LS Electric, Schneider Electric, Siemens, WEG, Yaskawa.
- Variable frequency drive
ABB ACH580 HVAC drive (embedded Modbus RTU)
ACH580 drives running the ACH580 HVAC control program, embedded fieldbus (EFB) set to Modbus RTU, addressing mode 0 (default).
Also known as: ACH580-01, ACH580-07, ACH580-31, ACH580-34, ACH580 HVAC control program - Variable frequency drive
ABB ACQ580 water and wastewater drive (embedded Modbus RTU)
ACQ580 drives running the ACQ580 pump control program, embedded fieldbus (EFB) Modbus RTU, addressing mode 0 (default); firmware manual 3AXD50000035867 Rev H.
Also known as: ACQ580-01, ACQ580-04, ACQ580-07, ACQ580-31, ACQ580-34, ACQ580 pump control program - Variable frequency drive
ABB ACS355 machinery drive (embedded Modbus RTU)
ACS355 drives with firmware 5.110 or later using the embedded fieldbus (Modbus RTU) over an FMBA-01 adapter on terminal X3 (EIA-485) or the panel port (RS-232).
Also known as: ACS355-01E, ACS355-03E, ACS355-01U, ACS355-03U, ACS355 with FMBA-01 - Variable frequency drive
ABB ACS480 general purpose drive (embedded Modbus RTU)
ACS480 drives running the ACS480 standard control program, embedded fieldbus (EFB) Modbus RTU, addressing mode 0 (default); firmware manual 3AXD50000047399 Rev G.
Also known as: ACS480-04, ACS480 standard control program - Variable frequency drive
ABB ACS580 general purpose drive (embedded Modbus RTU)
ACS580 drives running the ACS580 standard control program, embedded fieldbus (EFB) Modbus RTU, addressing mode 0 (default).
Also known as: ACS580-01, ACS580-04, ACS580-07, ACS580 standard control program - Variable frequency drive
ABB ACS880 industrial drive, primary control program (embedded Modbus RTU)
ACS880 drives running the primary control program (AINLX) 3.4x or later, embedded fieldbus (EFB) Modbus RTU on terminal XD2D, 58.33 Addressing mode = Mode 0 (default).
Also known as: ACS880-01, ACS880-04, ACS880-07, ACS880-11, ACS880-17, ACS880-31, ACS880-37, AINLX, ACS880 primary control program - Pump (vertical in-line with integrated VFD)
Armstrong Fluid Technology Design Envelope 4300 / 4380 with DEPM IVS / DE IVS drive (map v2)
Armstrong Design Envelope 4300 and 4380 vertical in-line pumps with DEPM IVS or DE IVS drive, controller firmware v1.17 and newer (Modbus register map version 2).
Also known as: Design Envelope 4300, Design Envelope 4380, DEPM IVS, DE IVS, Design Envelope pump controller, DEPC - Variable frequency drive
Danfoss VLT AQUA Drive FC 202 (Modbus RTU)
VLT AQUA Drive FC 202 using the built-in RS-485 (FC) port with 8-30 Protocol = Modbus RTU and the FC control profile; parameter data checked against the software 5.4X programming guide.
Also known as: VLT AQUA Drive, FC202, FC-202, AQUA Drive FC 202 - Variable frequency drive
Danfoss VLT AutomationDrive FC 301/302 (Modbus RTU)
VLT AutomationDrive FC 301 and FC 302 (0.25-75 kW design guide; same scheme across sizes) using the built-in RS-485 (FC) port with 8-30 Protocol = Modbus RTU and the FC control profile; parameter data checked against the software 9.5x / 48.96 programming guide.
Also known as: VLT AutomationDrive, FC 301, FC301, FC302, FC-302, FC-301, FC 300 - Variable frequency drive
Danfoss VLT HVAC Drive FC 102 (Modbus RTU)
VLT HVAC Drive FC 102 using the built-in RS-485 (FC) port with 8-30 Protocol = Modbus RTU and the FC control profile; parameter scaling checked against the software 7.61 programming guide.
Also known as: VLT HVAC Drive, FC102, FC-102 - Variable frequency drive
Danfoss VACON VACON 100 family (built-in Modbus RTU / Modbus TCP)
VACON 100 INDUSTRIAL, FLOW, HVAC and 100 X drives using the built-in RS-485 Modbus RTU or Ethernet Modbus TCP/UDP (manual DPD00156D); application IDs per the VACON 100 INDUSTRIAL application guide DPD00927L (FW0072V037).
Also known as: VACON 100 INDUSTRIAL, VACON 100 FLOW, VACON 100 HVAC, VACON 100 X, VACON0100 - Pump (circulator / E-pump / pump drive)
Grundfos E-pumps (MAGNA3, TPE, CRE, CUE) via CIM 200 / CIM 500
Grundfos E-pumps (CRE/CRNE/CRIE, MTRE, CHIE, CME, TPE, TPE Series 2000, NBE/NKE), CUE drives and MAGNA3 with a CIM/CIU 200, CIM/CIU 500 or built-in SoftCIM.
Also known as: MAGNA3, TPE, TPE Series 2000, CRE, CRNE, CRIE, MTRE, CHIE, CME, NBE, NKE, CUE, MGE, CIM 200, CIU 200, CIM 500, CIU 500, SoftCIM Modbus RTU - Variable frequency drive
Invertek Drives Optidrive Eco (built-in Modbus RTU)
Invertek Optidrive Eco drives using the built-in RJ45 RS-485 Modbus RTU port, per user guide 82-HEMAN-IN V3.13.
Also known as: ODV-3, Optidrive Eco HVAC, Optidrive Eco IP20, Optidrive Eco IP55, Optidrive Eco IP66 - Variable frequency drive
Invertek Drives Optidrive P2 (built-in Modbus RTU)
Invertek Optidrive P2 drives (0.75-250 kW) using the built-in RJ45 RS-485 Modbus RTU port, per user guide 82-P2MAN-IN V3.10.
Also known as: ODP-2, Optidrive P2 IP20, Optidrive P2 IP55, Optidrive P2 IP66 - Variable frequency drive
LS Electric LSLV-S100 AC drive (built-in RS-485 Modbus RTU)
LS Electric S100 drives (0.4-75 kW, including IP66) using the built-in RS-485 terminals S+/S-/SG with CM.02 = Modbus-RTU, per S100 User Manual V4.3.
Also known as: LSLV-S100, LSIS S100, LS S100, LSLV0075S100-4EOFNS - Variable frequency drive (HVAC fans and pumps)
Schneider Electric Altivar 212 (embedded Modbus RTU)
ATV212H (IP21) and ATV212W (IP55) drives on the built-in Modbus RTU ports (RJ45 and open-style terminal), per Modbus manual S1A53844.
Also known as: ATV212, Altivar 212, ATV212H, ATV212W, ATV212HU15N4, ATV212WD11N4 - Variable frequency drive
Schneider Electric Altivar Machine ATV320 (embedded Modbus RTU)
ATV320 Book (ATV320...B) and Compact (ATV320...C) drives on the built-in RJ45 Modbus serial port; register map per Communication Parameters file NVE41316 V3.5.
Also known as: ATV320, Altivar 320, ATV320U, ATV320D, ATV320 Book, ATV320 Compact - Variable frequency drive
Schneider Electric Altivar Process ATV630 / ATV600 family (Modbus serial and Modbus TCP)
Altivar Process ATV600 drives (ATV630, ATV650 and other ATV6x0 models) on the embedded RJ45 Modbus serial port or the embedded Ethernet Modbus TCP server; register map per Communication Parameters file EAV64332 V4.6.
Also known as: ATV600, ATV630, ATV650, ATV660, ATV680, Altivar Process 600, ATV630U, ATV630D - Variable frequency drive
Siemens SINAMICS G120 / G120C (Modbus RTU)
SINAMICS G120 with an RS485 Control Unit (CU230P-2 HVAC/BT, CU240B-2, CU240E-2 / -2 F, CU250S-2), G120C USS/MB and G110M CU240M USS, firmware V4.7, per Fieldbuses function manual A5E34229197B AA. Not SINAMICS G120X, which has its own documentation.
Also known as: G120C USS/MB, CU230P-2 HVAC, CU230P-2 BT, CU240B-2, CU240E-2, CU240E-2 F, CU250S-2, G110M CU240M USS, G120P - Variable frequency drive
Siemens SINAMICS V20 inverter (Modbus RTU)
SINAMICS V20 basic inverters (1AC 230 V 6SL3210-5BB.. and 3AC 400 V 6SL3210-5BE..) using the built-in RS485 port with P2023 = 2 (Modbus), per operating instructions A5E34559884-006 (11/2016).
Also known as: V20, 6SL3210-5BB, 6SL3210-5BE - Variable frequency drive
WEG CFW500 frequency inverter (Modbus RTU)
WEG CFW500 drives as a Modbus RTU slave on the RS-485 port of the plug-in module (Modbus RTU User's Guide 10002253377 rev 04); parameter scaling from the V2.2X programming manual.
Also known as: CFW500 VFD, CFW500-IOS, CFW500-CRS485, CFW500-CUSB, CFW500-CRS232 - Variable frequency drive
Yaskawa A1000 AC drive (MEMOBUS/Modbus RTU)
Yaskawa A1000 drives (CIMR-AU; 200 V, 400 V and 600 V classes) using the built-in RS-422/485 MEMOBUS/Modbus terminals (TB5), per Technical Manual SIEP C710616 41H.
Also known as: CIMR-AU, CIMR-AUA, A1000 High Performance Vector Control Drive - Variable frequency drive
Yaskawa GA500 AC drive (MEMOBUS/Modbus RTU)
Yaskawa GA500 drives using the built-in RS-485 MEMOBUS/Modbus port (terminal TB4), per technical reference SIEPC71061752 revision C.
Also known as: CIPR-GA50U, GA500 Versatile Compact - Variable frequency drive
Yaskawa V1000 AC drive (MEMOBUS/Modbus RTU)
Yaskawa V1000 drives (CIMR-VU; 200 V single/three-phase and 400 V three-phase, 0.1-18.5 kW) using the built-in RS-422/485 MEMOBUS/Modbus terminals, per Technical Manual SIEP C710606 18F.
Also known as: CIMR-VU, V1000 Compact Vector Control Drive
Variable frequency drives: default communication settings
Factory defaults as the manufacturer documents them. Change one setting at a time on site and write down what you changed. Word order applies to 32-bit values; the addressing column says how the manufacturer prints register numbers (every map on this site also gives the 0-based wire address).