General properties

V.P., V.L. and V.S. variables are accessible over the channel-specific interface with restrictions as of CNC Builds V.2.11.2077, V2.11.2847, V3.1.3081.07, V3.1.3115 and V4.18.0.

• There is a common channel-specific interface to read and write V.*. variables. This applies to the following V.*. variables:
• V.E. variables
• V.G. variables
• V.A. variables
• V.CYC.variables (*)
• V.P. variables (*)
• V.L. variables (*)
• V.S. variables (*)
• In addition, there is an axis-specific interface for axis-specific variables (V.A.). In the channel-specific interface, the axis name for axis-specific variables must be affixed to the variable names to address the required axis. In the axis-specific interface on the other hand, the variable value of the axis currently assigned to this position is read implicitly. Example:
  Axis-specific interface: V.A.ACT_POS
  Channel-specific interface: V.A.ACT_POS.X
• The variable value can be accessed by name or handle, whereby the handle is faster. Variables marked by (*) are an exception since they are only accessible by name.
  The handle of the variable is variable (depending on the configuration). For this reason, a request can be sent by variable name.
• In order to access the variable without “pre-knowledge”, the number of existing variable entries can be determined and the variable descriptions can be polled (by index).
• Variable arrays with an elementary data type (including multi-dimensional arrays and “end nodes” of variable structures) can be treated as a single unit. Example:
  V.E.array_sgn32, V.E.struct.array_uns32, V.G.NP[0].V, V.G.NP[1].V
  When an array variable is read or written, either a single element or a complete array can be accessed. Example:
  V.G.NP[0].V[1] -> single element
  V.G.NP[0].V -> complete array V.G.NP[0].V[0] ... V.G.NP[0].V[n]
• Variable structures are resolved into their single elements, i.e. the variable name is composed of structure names, element name and array indices. Examples:
  V.G.WZ_AKT.SPDL_AX_NR
  V.E.trajectory.vector.x, V.E.trajectory.vector.y, V.E.trajectory.vector.z
  V.E.struct1[0].struct2[0].array_sgn32, ..., V.E.struct1.struct1[5].struct2[8].array_sgn32
  (end node “array_sgn32” is treated as a single unit).