Connections
The inputs of the DCC block are connected via unit-global variables of the MCC source file
"AddOn" to the outputs of the "FB_IntpoPLCToAddOn" block. The DCC block outputs are
interconnected with the inputs of the "FB_IntpoAddOnToPLC" block using unit-global variables.
Table 3-16 DCC_SCINTPO connections
Name Type Data type Unit-global variables of "AddOn" Meaning
BENABLE IN BOOL intpo_PLC_Enable Transfer Activate transfer of interpolation points
BLIST_IDX IN BYTE intpo_PLC__Index_Rcv Received interpolation point number
BCOUNT OUT BYTE intpo_SC_Count Number of interpolation points
BCURR_IDX OUT BYTE intpo_SC_Index_Snd Sent interpolation point number
IPOS_TR OUT DINT intpo_SC_HO_Pos Hoist position (corresponding to received
interpolation point number)
IPOS_HO OUT DINT intpo_SC_TR_Pos Trolley position (corresponding to re‐
ceived interpolation point number)
BERROR OUT BOOL intpo_SC_Error Invalid interpolation point number
Error messages
If the specified interpolation point number is larger than the current number, the BERROR
output is set.
Overview of the software
3.3 Sway control function blocks
SC integrated STS, GSU
Operating Instructions, 07/2019, A5E48271265B AA 53
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