Synchronisation type of H functions (P-CHAN-00027)

P-CHAN-00027

Synchronisation type of H functions

Description

The synchronisation type of the corresponding H function is defined in the array ‘h_synch[i]’. Here, the field index ‘i’ defines the number of the H function. This value indicates the synchronisation type of the H function, i.e. when a check is made for the presence of a PLC acknowledgement. A motion is not executed, or is stopped at the latest towards the end of the block, if no acknowledgement has arrived from the PLC. The synchronisation type is defined as a string constant or a hexadecimal value.

Parameter

h_synch[i] where i = 0 999 (maximum number of H functions, application-specific)

Data type

STRING

Data range

See figure below

Dimension

----

Default value

NOT_VALID

Remarks

H functions are consumption information and they must be fetched (read) from the PLC. This also applies to H functions of the type MOS, MEP_MOS and MET_MOS. Otherwise, this results in a blocked interface to the HLI in the CNC and as a consequence to an unexpected processing stop.

Caution:

The following applies to synchronisation types with associated time and path-related pre-output (MET_SVS, MET_MOS, MEP_SVS, MEP_MOS):

If one of these synchronisation types is later changed into one which requires no pre-output value, P-CHAN-00107 (m_pre_outp[i]) must be assigned to 0. Otherwise, a license error is generated in case of microwebs if this function is not licensed or not enabled (see P-CHAN-00600 Alternatively: P-STUP-00060) is inactive.

Example

h_synch[12]         MVS_SVS     0x00000002

Note: Programming a UNS32 variable is permissible for downward compatibility reasons.

Example: m_synch[12]         0x00000002

Constant

Value

Meaning

NOT_VALID

-1

No valid H function

NO_SYNCH

0x00000000

No output of H function to PLC

MOS

0x00000001

Output of H function to PLC without synchronisation.
Fetch H function from PLC!

MVS_SVS

0x00000002

Output of H function to PLC before motion block,
synchronisation before motion block

MVS_SNS

0x00000004

Output of H function to PLC before motion block,
synchronisation after motion block

MNS_SNS

0x00000008

Output of H function to PLC after motion block,
synchronisation after motion block

MNE_SNS

0x00000020

Output of H function to PLC after (measurement) event,
synchronisation after motion block
(for edge banding option only)

MVS_SLM

0x00004000

Late synchronisation, output of H function to PLC within the block, synchronisation during transfer to G01/G02/G03 (implicit synchronisation)

MVS_SLP

0x00008000

Late synchronisation, output of H function to PLC within the block, synchronisation by NC command #EXPL SYN (explicit synchronisation)

MOS_TS

0x00040000

Output of H function to PLC before motion block without synchronisation.

CNC calculates sampling time offset for high-precision time output in the PLC.

H function must be fetched from PLC!

MEP_MOS

0x00100000

Pre-output of H function with specified path, without synchronisation.
Fetch H function from PLC!

MET_MOS

0x00200000

Pre-output of H function with specified time, without synchronisation.
Fetch H function from PLC!

BWD_SYNCH

0x00400000

Synchronisation of H function during backward motion with MVS_SVS

FWD_SYNCH

0x00800000

Synchronisation of H function during 'Simulated forward motion' with associated synchronisation type

MEP_SVS

0x01000000

Output of H function with specified path, synchronisation before next block

MET_SVS

0x02000000

Output of H function with specified time, synchronisation before next block

FAW_SYNCH

0x10000000

Decoding stop (Flush and Wait): Output of H function to PLC and stop of program decoding at block end until all NC blocks in NC channel are completed. FAW_SYNCH can be set in addition to other synchronisation types. H functions with FAW_SYNCH may not be used during active tool radius compensation (TRC), polynomial contouring and HSC mode.