3.2.3.2
Naming scheme for the unit-global variables
The global variables serve as connection elements between the components and have the
following structure:
%ORFNQDPH!B6RXUFH!B0HDQLQJ!
Section
Description
Example
①
Specification of the DCC library block
Trolley, Hoist, Common, TLS, Targets, Ob‐
stacle, Camera, Intpo, Diag
②
Source of the variables.
BT, SC, PLC, CAM, TO
③
Meaning of the variables. This is identical
with the name on the DCC blocks and on the
function blocks.
e.g. Brake_Closed, Active
Example:
7UROOH\B3/&B%UDNHB&ORVHG
3.2.3.3
AddOn technology – Basic Technology
Basic Technology → AddOn technology
The following signals are forwarded via unit-global variables of the "AddOn" MCC source file
from the Basic Technology to the AddOn technology:
Table 3-2
Variables Basic Technology → AddOn technology
Variable
Format
Meaning
Unit
trolley_BT_S_Set_TR_Extern
LREAL
External target position for the trolley
from the Basic Technology
± mm
trolley_BT_V_Set_TR
LREAL
Set velocity for the trolley from the Ba‐
sic Technology
mm/s
hoist_BT_S_Set_HO_Extern
LREAL
External target position for the hoist
from the Basic Technology
± mm
hoist_BT_V_Set_HO
LREAL
Set velocity for the hoist from the Basic
Technology
mm/s
hoist_BT_Field_Weak
REAL
Field-weakening limit from the Basic
Technology
%
Overview of the software
3.2 AddOn software structure
SC integrated STS, GSU
Operating Instructions, 07/2019, A5E48271265B AA
35