Topics covered in this article

• Prerequisites
• Setting the OPC-UA option
• Configuring the OPC-UA option
• MachineMetrics sample script file

Prerequisites

• SINUMERIK Operate is a requirement for OPC UA server.
• The OPC UA license (6FC5800-0AP67-0YBO) is also a requirement and may need to be installed by a service technician.
• The HMI time needs to be checked and set.

Compatibility of OPC UA server version and CNC software versions

Setting the OPC-UA option

• Go to Startup
• Press Licenses softkey
• Go to Access MyMachine / OPC UA and check the box under Set as shown below

If you do not have the license, use this link to purchase from Siemens.

Configuring the OPC-UA option

• Go to Startup
• Press Network softkey
• Press OPC UA softkey
• Press Setting softkey
• Press Change softkey
• Make required changes to Connection, Authentication, Activation.
  • • Note:  Port setting of 4840

If these screens do not match your CNC screens it is likely that you are on a different version to the v4.7 we are showing, you can find OPC-UA guides on the Siemens website.

Photo credit:  Siemen's Configuration Manual, 08/2019, 6FC5397-1DP41-0BA3

• Choose OK and you will see a safety note appear regarding an open port in the firewall.

Photo credit:  Siemen's Configuration Manual, 08/2019, 6FC5397-1DP41-0BA3

MachineMetrics sample script file

• Snippet of our adapter script file for a Siemens CNC 840d or 828D OPC-UA and the associated namespace tags.

version: 2
username: #Enter Username Here
password: #Enter Password Here
security-mode: Sign #or SignAndEncrypt or None
security-policy: Basic256Sha256 #or Basic256 or Basic128Rsa15 or None

tags:
  tool-group:
    path: ns=2;s=/Channel/State/actToolIdent
  tool-num:
    path: ns=2;s=/Channel/State/actTNumber
  line-number:
    path: ns=2;s=/Channel/ProgramInfo/actLineNumber
  spindle-load:
    path: ns=2;s=/Nck/Spindle/driveLoad
  prog-status:
    path: ns=2;s=/Channel/State/progStatus
  controller-op-mode:
    path: ns=2;s=/Bag/State/opMode
  op-mode:
    path: ns=2;s=/Nck/Spindle/opMode
  position:
    path: ns=2;s=/Nck/Spindle/psModePos
  spindle-speed:
    path: ns=2;s=/Nck/LogicalSpindle/actSpeed
  last-alarm-number:
    path: ns=2;s=/Nck/LastAlarm/alarmNo
  feed-rate:
    path: ns=2;s=/Channel/MachineAxis/actFeedRate
  prog-name:
    path: ns=2;s=/Channel/ProgramInfo/progName
  act-parts:
    path: ns=2;s=/Channel/State/actParts
  spindle-turn-state:
    path: ns=2;s=/Nck/Spindle/turnState
  total-parts:
    path: ns=2;s=/Random@NCU_1/Plc/DB165.DBD50
  feedrateovr:
    path: ns=2;s=/Channel/MachineAxis/feedRateOvr
  workpandprogname:
    path: ns=2;s=/Channel/ProgramPointer/workPandProgName

variables:
  execution:
    - source: prog-status
    - state:
      - INTERRUPTED: this == 1
      - STOPPED: this == 2 or this == 5
      - ACTIVE: this == 3 or this == 4
      - READY: true 
  controller-mode:
    - source: controller-op-mode
    - state:
      - MANUAL: this == 0
      - MANUAL_DATA_INPUT: this == 1
      - AUTOMATIC: this == 2
  spindle-rotating:
    - source: spindle-turn-state
    - state:
      - ON: this == 0 or this == 1
      - OFF: this == 2
data-items:
  - spindle-speed
  - spindle-load
  - feed-rate
  - last-alarm-number
  - line-number
  - tool-group
  - tool-num
  - prog-name
  - act-parts
  - total-parts
  - feedrateovr
  - workpandprogname

Note: this is only valid for a Siemens CNC

Have Questions? 

Reach out to our team at Support@machinmetrics.com.