PRD: Siemens Motion and Modal Domains

This page groups the major Siemens-aligned motion and modal requirements that shape parser, AIL, and runtime design.

5.3 Siemens Comment Syntax

Required forms:

• ; ...
• (* ... *)
• optional // ... behind explicit compatibility mode

Acceptance expectation:

• comment text preserved in parse output
• comments do not alter executable token order outside the comment span
• malformed or unclosed block comment returns actionable diagnostics

5.4 Siemens Tool-Change Semantics

Required behavior families:

• without tool management
  • direct-change mode
  • preselect plus M6
• with tool management
  • selection by location or name
  • substitution handled by runtime policy

Parser/runtime must preserve:

• raw command form
• resolved intent
• timing
• optional spindle extension
• selector kind

5.5 Tool Radius Compensation

Required modal group:

• Group 7
  • G40
  • G41
  • G42

Requirement:

• model Group 7 explicitly and track it independently from motion state

5.6 Working Plane Selection

Required commands:

• G17
• G18
• G19

Requirement:

• working plane must propagate into arc interpretation and compensation-related behavior

5.7 Feedrate Semantics

Required Group 15 coverage includes:

• G93
• G94
• G95
• G96
• G97
• G931
• G961
• G971
• G942
• G952
• G962
• G972
• G973

Required supporting forms:

• F...
• FGROUP(...)
• FGREF[...]
• FL[...]

Requirement:

• feed state must remain explicit and composable with motion, plane, and compensation state

5.8 Dimensions and Unit Semantics

Required coverage:

• Group 14:
  • G90
  • G91
• local overrides:
  • AC(...)
  • IC(...)
• rotary targeting:
  • DC(...)
  • ACP(...)
  • ACN(...)
• unit modes:
  • G70
  • G71
  • G700
  • G710
• turning diameter/radius families:
  • DIAMON
  • DIAM90
  • DIAMOF
  • related axis-specific and value-override forms

5.9 Settable Work Offsets

Required Group 8 coverage:

• G500
• G54
• G55
• G56
• G57
• G505 .. G599

Required suppress commands:

• G53
• G153
• SUPA

5.10 Exact-Stop and Continuous-Path Modes

Required modal groups:

• Group 10:
  • G60
  • G64
  • G641
  • G642
  • G643
  • G644
  • G645
• Group 11:
  • G9
• Group 12:
  • G601
  • G602
  • G603

Required parameter support:

• ADIS=...
• ADISPOS=...

5.11 Rapid Traverse

Required coverage:

• G0
• RTLION
• RTLIOF

Requirement:

• preserve rapid-mode state and effective override decisions explicitly

5.12 M-Code Syntax and Semantics

Required baseline predefined families include:

• flow control:
  • M0
  • M1
  • M2
  • M17
  • M30
• spindle:
  • M3
  • M4
  • M5
  • M19
  • M70
• tool:
  • M6
• gear:
  • M40 .. M45

Requirement:

• parsing preserves raw code, normalized identity, and source
• runtime semantics for machine-specific free M numbers must remain pluggable