User-Defined Variables For Synchronized Actions - Siemens SINUMERIK 840D sl Function Manual

Detailed description

3.4 User-defined variables for synchronized actions

These bits have the following meaning:
Bit
0
1
2
Disabling via PLC or synchronized action have different levels of priority. The following
hierarchy of priorities applies:
Priority 1 (highest priority):
Priority 2:
Priority 3:
$AC_SYNA_STATE only outputs the value of the disable with the highest priority, even if
disabling is simultaneously active via PLC and Synchronized action:
Status
Channel-wide disable via PLC is active.
In addition, disable via synchronized action
can be active.
Channel-wide disable via PLC is not active.
Disable via synchronized action is active.
Additionally, a single disable can be active
via PLC.
Channel-wide disable via PLC is not active.
Disable via synchronized action is not active.
Single disable via PLC is active.
No disable is active.
3.4 User-defined variables for synchronized actions
GUD variables capable of synchronized actions
As well as specific system variables, predefined global synchronized-action user variables
(synchronized action GUD) can also be used in synchronized actions. The number of
synchronized action GUD items available to the user is parameterized for each specific data
type and access using the following machine data:
● MD18660 $MM_NUM_SYNACT_GUD_REAL[<x>] = <number>
● MD18661 $MM_NUM_SYNACT_GUD_INT[<x>] = <number>
58
Value Meaning
0 Not disabled
1 Disabled via PLC or synchronized action
0 Not disabled via PLC
1 Disabled via PLC
0 Not disabled via synchronized action
1 Disabled via synchronized action
Disabled via PLC across all channels (⇒ all synchronized ac‐
tions in the channel are inhibited)
Disabled via synchronized action
Individual disabling via PLC (⇒ a single synchronized action
in the channel is disabled)
Highest $AC_SYNA_STATE
priority
Bit 2 Bit 1
Channel- 0 1
wide disable
via PLC
Disabled via 1 0
synchron‐
ized action
Single disa‐ 0 1
ble via PLC
- 0 0
Function Manual, 08/2018, 6FC5397-5BP40-6BA2
Bit 0 Bit-coded value
1 3
1 5
1 3
0 0
Synchronized actions