Siemens SINUMERIK Series Function Manual page 57

Further attributes
Further attributes can be allocated to each I/O range with the following machine data:
MD10502 $MN_DPIO_RANGE_ATTRIBUTE_IN[<n>]
Bit
0
1
2
3
MD10512 $MN_DPIO_RANGE_ATTRIBUTE_OUT[<n>]
Bit
0
1
2
3
Note
● The configuration of the I/O ranges via the corresponding machine data need not be done
● If the registration of one/several I/O range(s) does not run successfully during the NCK
Extended Functions
Function Manual, 03/2013, 6FC5397-1BP40-3BA1
Value Meaning
Format display of system variables $A_DPx_IN[<n>,<m>]
0 Little-endian format
1 Big-endian format
Reserved
Reading of input data
0 Reading possible via system variables and CC-binding
1 Reading possible only for CC-binding
Output of slot sign-of-life alarms
0 Slot sign-of-life alarms are issued
1 Slot sign-of-life alarms are suppressed
Value Meaning
Format display of system variables $A_DPx_OUT[<n>,<m>]
0 Little-endian format
1 Big-endian format
Writing of output data
0 Writing only via system variable
1 Writing only via CC-binding
Reserved
Output of slot sign-of-life alarms
0 Slot sign-of-life alarms are issued
1 Slot sign-of-life alarms are suppressed
persistently. That is, the assignment of the I/O ranges to the corresponding machine
data-indices can be selected in any way.
run-up phase, the registration is aborted with an alarm (4700 or 4702).
A4: Digital and analog NCK I/Os for SINUMERIK 840D sl
1.3 Access via PROFIBUS
57