Controller · Siemens
Connect SINUMERIK ONE
SINUMERIK ONE runs OPC UA server versions 3.1 to 4.2 depending on the Operate version (6.14 to 6.24). The Access MyMachine /OPC UA licence for ONE is an electronic licence: Siemens lists 6FC5800-0BP82-0YB0. The server is based on OPC UA 1.04 and adds an "OPC UA Advanced" layer (machine state, tool management, production dialog). Newer security policies (Aes128Sha256RsaOaep, Aes256Sha256RsaPss) are available; Basic128Rsa15 and Basic256 are deprecated.
At a glance
| Native protocol | OPC UA server 3.1 to 4.2 |
|---|---|
| Licence | 6FC5800-0BP82-0YB0 (electronic) |
| Port | TCP 4840 |
| Security | Basic256Sha256 on by default; AES policies available |
| Extras | OPC UA Advanced, RegisterAdvHost |
| umati | Not mentioned in the ONE OPC UA manual |
Connection paths
Native OPC UA serverRecommended
Same activation flow as 840D sl, with the ONE licence.
IBH Link UAAlternative
Lists SINUMERIK ONE support and an OPC 40502 CNC model.
Industrial Edge / Manage MyMachinesVendor product
ONE NCU 1740/1750/1760, Operate 6.13 onward depending on app
Licences and options
| Item | Option / part number | Paid? | Note |
|---|---|---|---|
| Access MyMachine /OPC UA (ONE) | 6FC5800-0BP82-0YB0 | Paid | Electronic licence; the ONE manual also prints 6FC5800-0BP67-0Yx0 |
Ports
| Port | Protocol | Note |
|---|---|---|
4840 | TCP | OPC UA |
Software versions
- OPC UA 4.2 ↔ Operate 6.15, 6.20 to 6.24
- OPC UA 4.1 SP1 ↔ 6.15 to 6.23
- OPC UA 4.0 / 4.0 SP1 ↔ 6.15, 6.20, 6.21
- OPC UA 3.1 SP1 ↔ 6.15; 3.1 ↔ 6.14
Data you can read
- Channel state: execution state, operating mode, active program name, block, line
- Spindle: rotating, speed, load; feed rate and override
- Alarms: event-based NC, PLC and HMI alarms with multilingual texts (needs the AlarmRead right)
- R parameters, global user data (GUD) and NC variables by path, for example
/Channel/Parameter/R[u1,10] - PLC data:
/Plc/MB6,/Plc/DB5.DBW2, arrays such as/Plc/DB2.DBD0:REAL[10](828D: customer DBs from DB9000 only) - Tools: tool data, cutting edges, magazine; methods to create and delete tools and cutting edges
- Part counters (actual and total parts) and program selection (Select/Deselect methods with the ApWrite right)
- OPC UA Advanced: machine state, tool management, production dialog, workpiece carrier, Tool Ident Connection
Setting it up
- Check the licence and software versionAccess MyMachine /OPC UA must be licensed and activated: order number 6FC5800-0AP67-0YB0 for 840D sl and 828D. Check the CNC software version against the compatibility table below before you order.
- Use the right network interface828D: X130 (company network). 840D sl with thin client: X120 and X130 on the NCU. 840D sl with PCU or IPC: the server is reachable on eth1 and eth2 of the PC, not on X120/X130. Do not change the 192.168.214.x and 192.168.215.x system networks.
- Raise the access levelEnter the Manufacturer access level so the commissioning screens are available.
- Activate the serverStartup (Commissioning) > Network > OPC UA > Setting > Change. Choose the network (company, system or service), confirm IP address and port 4840, tick "Activate OPC UA", OK.
- Create a user and rightsAnonymous access is off by default and should stay off. Create a user with a strong password (8 or more characters, mixed case, digits, special characters) and give it only the rights it needs, for example StateRead, ToolRead, AlarmRead.
- RestartHardware restart of the NCU or PPU; on a PCU 50 or IPC, restart Operate.
- Exchange certificatesStartup > Network > OPC UA > Certificates. The server certificate is generated at first start (20-year validity). Import the client certificate (.der) and trust the HMI certificate on the client side. Switch off automatic certificate acceptance once commissioning is done.
- Verify with a generic clientConnect with UaExpert to
opc.tcp://<HMI-IP>:4840using Basic256Sha256 Sign & Encrypt, browse, read a channel state, then hand over to the production client.
Troubleshooting
| Symptom | Likely cause | Fix |
|---|---|---|
| BadCertificateTimeInvalid | System time wrong on the control or the client | Set the clock on both sides (NTP where possible), then reconnect. |
| BadSecurityChecksFailed | Client certificate not trusted by the server | Move the client certificate to the trusted list under Startup > Network > OPC UA > Certificates. |
| Endpoint not reachable on 840D sl with PCU | Client is dialling X120/X130 | With a PCU or IPC the server listens on eth1/eth2 of the PC; open TCP 4840 in the PC firewall. |
| Login works, every read is denied | New users have no rights | Grant the needed rights (StateRead, AlarmRead, ToolRead, PlcRead…) with the admin user. |
| 828D cannot read a PLC data block | 828D exposes customer data blocks from DB9000 only | Ask the PLC programmer to copy the values into a DB at or above DB9000. |
| Security None endpoint missing | Only 256-bit policies are active by default | Keep it that way in production; enable None only temporarily for a reachability test if your site policy allows it. |
Traps to avoid
- Basic128Rsa15 and Basic256 are deprecated and off by default; clients limited to these policies will not connect.
- Passwords: 8 to 120 characters.
Connectors that support this control
| Product | Vendor | Type | Outputs |
|---|---|---|---|
| IBH Link UA | IBHsoftec | Gateway | OPC UA (incl. OPC 40502 CNC model), MQTT Sparkplug B |
| dataFEED OPC Server CNC | Softing | OPC server / driver | OPC DA; optional OPC UA 1.04, MQTT, REST |
| Manage MyMachines | Siemens | Control or machine maker | Cloud (Insights Hub) |
| Industrial Edge for Machine Tools | Siemens | Control or machine maker | REST, MQTT |
| Connectware | Cybus | Edge platform | MQTT, OPC UA server |
| StateMonitor | HEIDENHAIN | Control or machine maker | ERP/MES job interface |
Not published by the vendor. We could not find these in vendor documentation. Ask the control or machine maker before you rely on them.
- Whether SINUMERIK ONE ships an OPC 40501 (umati) information model: not in the ONE OPC UA manual; VDW lists Siemens as a supporting control supplier
Questions engineers ask
Which OPC UA version runs on SINUMERIK ONE?
From 3.1 (Operate 6.14) to 4.2 (Operate 6.15 and 6.20 to 6.24).
Related
Sources
Facts on this page come from these documents, opened on 27 October 2026.
- Siemens — SINUMERIK ONE OPC UA configuration manual (07/2024)
- Siemens Industry Mall — 6FC5800-0BP82-0YB0
- IBHsoftec — IBH Link UA
- Siemens — Manage MyMachines system requirements
- Siemens — Analyze MyMachine /Condition installation manual (10/2023)
- VDW — control suppliers supporting umati
Last verified 27 October 2026 against vendor documentation. OPC UA Connect is an educational resource published by TEEPTRAK; it is not affiliated with the OPC Foundation, the MTConnect Institute or any control maker.