Channel-specific interface

IndexGroup: IdxGrp = 0x122300 + Channel_No , e.g. for Channel 1: 0x122301:

IdxGrp	IdxOffs	Function	Description	Input	Output
0x122301	0x44	Number of variable elements	Number of existing variable entries of selected variable type. If no variable type is specified → total number of all available variables V.E + V.G + V.A (Largest index = number of elements – 1)	STRING max. 255 characters	UNS32
0x122301	0x45	Variable description by index	Variable description (name, handle, variable type, access, size, array dimensions, largest index)	BYTE[2048] variable length	BYTE[2048] variable length
0x122301	0x46	Variable handle by name	Handle for access to the variable	STRING max. 255 characters	Handle (UNS32)
0x122301	0x47	Read variable value by handle	Read variable value by variable handle	BYTE[2048] variable length	BYTE[2048] variable length
0x122301	0x48	Read variable value by name	Read variable value by variable name	STRING max. 255 characters	BYTE[2048] variable length
0x122301	0x49	Write variable value by handle	Write variable value by variable handle	BYTE[2048] variable length	-
0x122301	0x4A	Write variable value by name	Write variable value by variable name	BYTE[2048] variable length	-
0x122301	0x4B	Extended variable description by index	Extended variable description, e.g. for V.E variable synchronisation and validity range	BYTE[2048] variable length	BYTE[2048] variable length
0x122301	0x4C-0x4E	reserved	Reserved	-	-

Attention

attention

The following functions are not available for V.CYC variables.

"Variable handle by name"

"Read variable value by handle"

"Write variable value by handle"