Language Elements For Synchronized Actions And Technology Cycles - Siemens SINUMERIK 840D sl Function Manual

Detailed description

3.5 Language elements for synchronized actions and technology cycles

● The array size for STRING type synchronized action GUD is set to a fixed value of 32 (31
characters + \0).
● Even if no definition files have been created manually for global user data (GUD),
synchronized-action GUD defined using machine data can be read in the corresponding
GUD block from the HMI.
Note
User variables (GUD, PUD, LUD) can only be defined with the same name as synchronized-
action GUD (DEF ... SYG_xy) if no synchronized-action GUD has been parameterized
with the same name (MD18660 - MD18665). These user-defined items of GUD cannot be
used in synchronized actions.
Access rights
The access rights defined in a GUD definition file remain valid and refer only to the GUD
variables defined in this GUD definition file.
Deletion behavior
If the content of a particular GUD definition file is reactivated, the old GUD data block in the
active file system is deleted first. The configured synchronized-action GUD is also reset at this
point. This process is also possible using the HMI in the operator area "Services" > "Define
and activated user data (GUD)".
3.5 Language elements for synchronized actions and technology cycles
The following language elements can be used in synchronized actions and technology cycles:
Fixed addresses
L
F
S
1) 2)
M
1) 2)
H
1)
1) Chapter: "Output of M, S and H auxiliary functions to the PLC (Page 67)"
2) Chapter: "Traversing spindles (M, S, SPOS) (Page 90)"
Fixed addresses with axis extension: Miscellaneous
POS
POSA
SPOS
MOV
60
1)
Subprogram number
Feed
Spindle
M function
H function
Traversing axes, to position (POS) (Page 78)
Modal positioning axis
Spindle positioning
Chapter: "Traversing spindles (M, S, SPOS) (Page 90)"
Positioning axis
Chapter: "Traversing axes, endless (MOV) (Page 83)"
Function Manual, 08/2018, 6FC5397-5BP40-6BA2
Synchronized actions