RS-422 alternatives
As of 4 November 2026, 39 iot platforms protocols are named by companies instead of RS-422: Modbus by 2,067 companies, CAN bus by 1,760, SPI by 1,559.
As of 4 November 2026 · refreshed daily · counts move as websites, DNS and career sites are re-read.
- RS-422, companies in postings
- 180
- Most used alternative
- Modbus · 2,067
- Fastest hiring, 90 days
- Modbus
- Alternatives ranked
- 39
- Catalogue
- T-1.0.1-prov
iot platforms protocols companies choose instead of RS-422
Companies naming each tool in their own postings, and postings in the last 90 days. Bars are relative to the category leader.
| # | Alternative | Companies | companies | vs RS-422 | postings, 90 d | Compare |
|---|---|---|---|---|---|---|
| 1 | ModbusModbus Organization | 2,067 | 1148% | 5,698 | RS-422 vs Modbus → | |
| 2 | CAN busISO | 1,760 | 978% | 5,610 | RS-422 vs CAN bus → | |
| 3 | SPIMotorola | 1,559 | 866% | 4,935 | RS-422 vs SPI → | |
| 4 | I2CNXP | 1,515 | 842% | 4,820 | RS-422 vs I2C → | |
| 5 | UART(industry standard) | 1,237 | 687% | 3,224 | RS-422 vs UART → | |
| 6 | MQTTOASIS | 1,201 | 667% | 2,656 | RS-422 vs MQTT → | |
| 7 | EtherNet/IPODVA | 1,048 | 582% | 2,374 | RS-422 vs EtherNet/IP → | |
| 8 | OPC UAOPC Foundation | 935 | 519% | 2,090 | RS-422 vs OPC UA → | |
| 9 | PROFINETPROFIBUS & PROFINET International | 914 | 508% | 2,036 | RS-422 vs PROFINET → | |
| 10 | PROFIBUSPROFIBUS & PROFINET International | 701 | 389% | 1,645 | RS-422 vs PROFIBUS → | |
| 11 | BACnetASHRAE | 598 | 332% | 1,743 | RS-422 vs BACnet → | |
| 12 | USBUSB Implementers Forum | 597 | 332% | 1,786 | RS-422 vs USB → | |
| 13 | Bluetooth Low EnergyBluetooth SIG | 473 | 263% | 934 | RS-422 vs Bluetooth Low Energy → | |
| 14 | RS-485TIA | 464 | 258% | 1,001 | RS-422 vs RS-485 → | |
| 15 | OPC (OPC UA)OPC Foundation | 451 | 251% | 1,193 | RS-422 vs OPC (OPC UA) → | |
| 16 | RS-232EIA | 446 | 248% | 1,038 | RS-422 vs RS-232 → | |
| 17 | KNXKNX Association | 401 | 223% | 703 | RS-422 vs KNX → | |
| 18 | EtherCATEtherCAT Technology Group | 378 | 210% | 884 | RS-422 vs EtherCAT → | |
| 19 | BluetoothBluetooth SIG | 346 | 192% | 659 | RS-422 vs Bluetooth → | |
| 20 | IEC 61850IEC | 324 | 180% | 1,126 | RS-422 vs IEC 61850 → | |
| 21 | DNP3IEEE | 321 | 178% | 895 | RS-422 vs DNP3 → | |
| 22 | DeviceNetODVA | 285 | 158% | 598 | RS-422 vs DeviceNet → | |
| 23 | DDS (Data Distribution Service)Object Management Group | 280 | 156% | 663 | RS-422 vs DDS (Data Distribution Service) → | |
| 24 | LIN BusLIN Consortium | 266 | 148% | 1,210 | RS-422 vs LIN Bus → | |
| 25 | CAN FDBosch | 181 | 101% | 545 | RS-422 vs CAN FD → | |
| 26 | SAE J1939SAE International | 179 | 99% | 468 | RS-422 vs SAE J1939 → | |
| 27 | ZigbeeConnectivity Standards Alliance | 179 | 99% | 427 | RS-422 vs Zigbee → | |
| 28 | 175 | 97% | 552 | RS-422 vs UDS (ISO 14229) → | ||
| 29 | 168 | 93% | 380 | RS-422 vs GPIO → | ||
| 30 | CANopenCAN in Automation | 162 | 90% | 293 | RS-422 vs CANopen → | |
| 31 | NFCNFC Forum | 147 | 82% | 366 | RS-422 vs NFC → | |
| 32 | DMX512USITT | 122 | 68% | 150 | soon | |
| 33 | LonWorksEchelon | 115 | 64% | 403 | soon | |
| 34 | ARINCSAE ITT | 114 | 63% | 492 | soon | |
| 35 | EcoStruxureSchneider Electric | 109 | 61% | 339 | soon | |
| 36 | LoRaWANLoRa Alliance | 108 | 60% | 185 | soon | |
| 37 | Azure IoT HubMicrosoft | 100 | 56% | 162 | soon | |
| 38 | DALIDiiA | 99 | 55% | 154 | soon | |
| 39 | HART ProtocolFieldComm Group | 99 | 55% | 265 | soon |
Filter on any of them, or on RS-422 users who also name an alternative, and open the person who owns the stack.
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39 iot platforms protocols are named by companies instead of RS-422: Modbus by 2,067 companies, CAN bus by 1,760, SPI by 1,559, measured from their own job postings. (Breaknorm, 4 November 2026, https://breaknorm.co/tools/rs-422/alternatives)
Read from the source, not self-reported
Every number on this page can be traced to a page we crawled or a posting we read. Full methodology →
- RankingCompanies whose own postings name the tool as the team's system, from the Breaknorm technology catalogue T-1.0.1-prov. Editions are folded into their parent product.
- 90-day postingsOpen postings first seen or posted in the last 90 days that name the tool.
- Not includedRatings, prices, feature claims, sponsored positions.
RS-422 alternatives: questions
What is the most used alternative to RS-422?
Modbus: 2,067 companies name it in their own job postings, against 180 for RS-422.
How is this list ranked?
By the number of companies whose own postings name the tool as the team's system (Breaknorm technology catalogue T-1.0.1-prov), then by postings in the last 90 days. No ratings, no vendor input, no sponsored positions.
Does this say which is better?
No. It says who uses what, by company size, industry and country, so you can see which tools companies like yours choose. For features and prices, read the vendors.
Can I get the companies on any of these?
Yes: click the tool, see the first 20 companies, and sign up for the full list with verified e-mails. Counting is free.
Get these companies your way
The same data as a search, over MCP and the API, as bulk files, or pushed to you as it changes.
Every company on RS-422
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