Siemens SINUMERIK 840Di sl - Parameterization of the Number of Inputs;Outputs Used

NC Commissioning with HMI Advanced
11.7 Digital and analog I/O devices
Manual
468 Commissioning Manual, 05/2008, 6FC5397–4CP10–4BA0
11.7.1 Parameterization of the number of inputs/outputs used
Maximum number
The maximum number of digital or analog inputs/outputs that can be used for the NC is:
Total MCI board extension PROFIBUS modules
Analog inputs 8 - 8
Analog outputs 8 - 8
Digital inputs 36 4 32
Digital outputs 36 4 32
Note
The first digital input and output byte is permanently assigned to the MCI board extension
module (option). Therefore you can connect a maximum of 4 additional input/output bytes to
the PROFIBUS DP via signal modules. See configuration example Subsection
"Configuration example" (Page 473).
Machine data
The number of used analog and digital inputs/outputs is set in the following machine data
parameters:
Analog I/Os
● MD10300 $MN_FASTIO_ANA_NUM_INPUTS ("number of active analog NC inputs")
● MD10310 $MN_FASTIO_ANA_NUM_OUTPUTS ("number of active analog NC outputs")
Digital inputs/outputs
● MD10350 $MN_FASTIO_DIG_NUM_INPUTS ("number of active digital NC input bytes")
● MD10360 $MN_FASTIO_DIG_NUM_OUTPUTS ("number of active digital NC output
bytes")