Siemens SINUMERIK 840D sl Function Manual page 428

H2: Auxiliary function outputs to PLC
8.13 Behavior during block search
Explanation
● An auxiliary function package comprises a maximum of ten auxiliary functions.
● Two packages can be processed per IPO cycle in each channel during SERUPRO because
synchronized actions are processed in this cycle.
● An output sequence of up to a maximum of 20 packages (2 packages per channel * 10
channels) can be processed within an IPO cycle across all channels.
The encoding indicates how many auxiliary function packages and, within these, how many
auxiliary functions have been processed during the same IPO cycle:
● Auxiliary functions which have been collected in one IPO cycle have the same sequence
counter.
● Auxiliary functions which have been collected in one package (block or synchronized action)
all have the same package counter.
The total on the auxiliary function counter increases every time an auxiliary function is collected.
Global list of auxiliary functions
At the end of SERUPRO, the auxiliary functions collected on a group-specific basis in the
individual channels are entered in a cross-channel list with the channel number and group
index according to their counter state.
System variable
$AC_AUXFU_TICK[<n>,<m>]
$AN_AUXFU_LIST_CHANNO[<n>]
$AN_AUXFU_LIST_GROUPINDEX[<n>]
1) Value range index <n>: 0 ... MAXNUM_GROUPS * MAXNUM_CHANNELS - 1
2) The system variables can be read and written.
428
1)
2)
2)
Meaning
Counter value
Channel number
Group index
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Basic Functions