Siemens SIMATIC S7-1500 System Manual page 121

Configuring
7.9 Configuration of digital inputs/outputs (X142)
1. Select whether you want to output the switching signals generated at the digital output.
● Activate output
Select one of the following two output options for outputting the cam track:
– Output via Timer DQ
– Output by digital output module
Output deactivated
When output is deactivated, the cam track is evaluated only in the software.
120
For output by Timer DQ, select a cam output in the Output field. The selection box
displays all channels that have been configured correctly.
Note
Extending the configuration limits
A maximum of eight timer DQ can be configured at the X142 interface. If the Timer DQ
at X142 are not sufficient for your needs, you can increase the configuration limits with
time-based IO modules:
• ET 200SP distributed I/O system: TM Timer DIDQ 10x24V
• ET 200MP distributed I/O system: TM Timer DIDQ 16x24V
You can find more information on these systems in Technology functions of the CPU
(Page 44).
Note
Unsupported instructions for the X142 interface
The function blocks for the use of time-based IO (TIO instructions) are not supported
by the X142 interface.
Recommendation: For the timer DQ, use the output cam or cam track technology
object.
For output by a digital output module, select a digital output in the Output field. Only
the digital outputs with previously defined PLC tags are displayed for selection.
Note
Output via the X122, X132 or X142 interface
Also use the "Output by digital output module" setting in the following cases:
• The output occurs at the X142 interface by a DQ instead of a Timer DQ.
• The output occurs by a digital output of the X122 or X132 interface (configured
telegram 39x required)
In both cases you must define a PLC tag for the respective I/O address.
SIMATIC Drive Controller
System Manual, 11/2019, A5E46600094-AA