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_TrolleyPLCToAddOn" block. The DCC block outputs are
interconnected with the inputs of the "FB_TrolleyAddOnToPLC" block using unit-global
variables.
Table 3-8 DCC_SCTROLLEY connections
Name Type Data
type
Unit-global variables of "AddOn" Meaning
BRELEASE IN BOOL trolley_plc_release Request release
BTRAVEL IN BOOL trolley_plc_travel TRAVEL control bit
BOM_POS IN BOOL trolley_plc_om_pos Positioning mode
BOM_SPEED IN BOOL trolley_plc_om_speed Manual mode (MAN)
BOM_LOAD_POS IN BOOL trolley_plc_om_load_pos STS selected:
Sway neutralization load position
mode
GSU selected:
Not relevant
BOM_TROLLEY_POS IN BOOL trolley_plc_om_trolley_pos STS selected:
Sway neutralization drive posi‐
tion mode
GSU selected:
Not relevant
BOM_HOIST_CONTROL IN BOOL trolley_plc_om_hoist_control Semi-automatic mode (SAM)
BSC_ON IN BOOL trolley_plc_sc_on Sway control on
BLS_FW IN BOOL trolley_plc_ls_fw Limit switch, forward
BLS_BW IN BOOL trolley_plc_ls_bw Limit switch, backward
BPRELS_FW IN BOOL trolley_plc_prels_fw Prelimit switch, forward
BPRELS_BW IN BOOL trolley_plc_prels_bw Prelimit switch, backward
BBRAKE_CLOSED IN BOOL trolley_plc_brake_closed Output value enable
BSC_WHEN_STOP IN BOOL trolley_plc_sc_when_stop Sway control only when stopping
BCONTROLLED_STOP IN BOOL trolley_plc_controlled_stop Controlled stop
BFLYING IN BOOL trolley_plc_flying STS selected:
Not relevant
GSU selected:
On-the-fly unloading
IOVERRIDE IN INT trolley_plc_override Override
RS_ACT_TR IN LREAL trolley_to_rs_act_tr Current trolley position
RS_SET_TR_EXTERN IN LREAL trolley_bt_s_set_tr_extern Target position
IS_OFFS_TR IN INT trolley_plc_offset Position offset
RV_ACT_TR IN LREAL trolley_to_rv_act_tr Actual trolley velocity
RV_SET_TR IN LREAL trolley_bt_v_set_tr Set velocity
BREADY OUT BOOL trolley_sc_ready Answer release
BACTIVE OUT BOOL trolley_sc_active Active
BPOS_COMPLETED OUT BOOL trolley_sc_pos_completed Positioning
BSC_COMPLETED OUT BOOL trolley_sc_sc_completed Sway-neutralized
Overview of the software
3.3 Sway control function blocks
SC integrated STS, GSU
Operating Instructions, 07/2019, A5E48271265B AA 41
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