Commands and display via PLC interface

Channel operation mode
Description	Selects a special channel operation mode, e.g. syntax check or machining time calculation
Data type	MC_CONTROL_SGN32_UNIT, see description of Control Unit
Access	PLC reads request_r + state_r and writes command_w + enable_w
ST path	gpCh[channel_idx]^.decoder_mc_control.execution_mode
Commanded, requested and return values
ST element	.command_w .request_r .state_r
Data type	DINT
Value range	Value	Constant	Meaning
	0x0000	ISG_STANDARD	Normal mode
	0x0001	SV	Block search
	0x0002	SOLLKON	Nominal contour visualisation simulation with output of visualisation data
	0x0802	SOLLKON_SUPRESS_OUTPUT & SOLLKON	Nominal contour visualisation simulation without output of visualisation data
	0x0004	ON_LINE	Online visualisation simulation
	0x0008	SYNCHK	Syntax check simulation
	0x0010	PROD_TIME	Simulation machining time calculation (in TwinCAT without function)
	0x0020	ONLINE_PROD_TIME	Simulation online machining time calculation
	0x0040	MACHINE_LOCK	Dry run without axis motion
	0x0080	ADD_MDI_BLOCK	Extended manual block mode: the end of a manual block is not evaluated as a program end. It permits the commanding of further manual blocks.
	0x0100	KIN_TRAFO_OFF	Overwrites automatic enable for kinematic transformations by a characteristic parameter defined in the channel parameters (sda_mds*.lis).
	0x1000	BEARB_MODE_SCENE	When SCENE mode is enabled, the output of #SCENE commands is activated on the interface (see also [FCT-C17// Scene contour visualisation]). An additional client is linked to this output via DataFactory / CORBA.
	0x2000	SUPPRESS_TECHNO_OUTPUT	Without output of technology functions (M/H/T). Set implicitly in connection with syntax check.
	0x10000	SUPPRESS_POSITION_REQUEST	Fast program start without position request at program start
	0x20000	SUPPRESS_PROG_START_INIT	Suppress program start sequence for machining on the belt
Redirection
ST element	.enable_w

Display:

Parameter	Description
X_SyntaxCheck	Display: Syntax check active
X_WaitAfterError	Display: Decoder waits for enable to resume
X_SyntaxCheckWaitContinueCleared	Display: Decoder waits for cancellation of enable to resume

Syntax check active
Description	Decoder is currently in the syntax check
Signal flow	CNC → PLC
ST path	pMC[channel_idx]^.addr^.StateDecoder_Data.X_SyntaxCheck
Data type	BOOL
Value range	[TRUE = decoder operates in the syntax check, FALSE]
Access	PLC is reading
Special features	-

Error occurred during syntax check – waiting for external input
Description	In syntax check mode, the decoder waits after an error for an external input (continue, abort)
Signal flow	CNC → PLC
ST path	pMC[channel_idx]^.addr^.StateDecoder_Data.X_WaitAfterError
Data type	BOOL
Value range	[TRUE = error occurred in the syntax check – decoder waits, FALSE]
Access	PLC is reading
Special features	-

Syntax check active
Description	Decoder is currently operating in the syntax check and, after an error and enable, waits until enable is cancelled.
Signal flow	CNC → PLC
ST path	pMC[channel_idx]^.addr^.StateDecoder_Data.X_SyntaxCheckReleaseNextBlockCleared
Data type	BOOL
Value range	[TRUE = decoder waits for enable to be cancelled, FALSE]
Access	PLC is reading
Special features	-

Implicit handshake during interactive syntax check between decoder and Mcm/PLC

Decoding interrupted
Description	Decoding was interrupted and waits for enable to continue.
Signal flow	CNC → PLC
ST path	pMC[channel_idx]^.addr^.StateDecoder_Data.X_WaitContinue
Data type	BOOL
Value range	[TRUE = decoder interrupted, FALSE]
Access	PLC is reading
Special features	-

Decoding interrupted
Description	Decoding was interrupted and the decoder waits until enable is cancelled again resuming.
Signal flow	CNC → PLC
ST path	pMC[channel_idx]^.addr^.StateDecoder_Data.X_WaitReleaseNextBlockCleared
Data type	BOOL
Value range	[TRUE = decoder waits, FALSE]
Access	PLC is reading
Special features	-