Siemens SIMATIC S7-300 Product Information page 170

Expert Functions
5.7 Triggering an output cam using the TM17 terminal module
Icon Description
Level-triggered
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The output cam will continue to be output at the output while the output cam in the
technology object is active and a parameterized enable signal is present at the
TM17 High Feature.
Switching signal for output cam TO
Digital input for enable
Digital output of the output cam
Connection of the SINAMICS S120 to the Technology CPU
Product Information, 09/2011, A5E00480378-04