Siemens SINAMICS S120 Function Manual page 818

Basic information about the drive system
13.5 Inputs/outputs
Function diagrams (see SINAMICS S120/S150 List Manual)
TB30
• 9102
TM31
• 9556
Control Unit 310-2
• 2038
Bidirectional digital inputs/outputs
Signal processing using the bidirectional inputs/outputs is shown in the function diagrams
listed below.
Properties
● Can be parameterized as digital input or output.
● When set as digital input:
– Six "high-speed inputs" on Control Unit
– The properties of the "pure" digital outputs apply.
● When set as digital output:
– The properties of the "pure" digital outputs apply.
● Sharing of bidirectional input/output resources by the CU and higher-level controller (see
Section "Use of bidirectional inputs/outputs on the CU (Page 820)")
818
Terminal Board 30 (TB30) -
isolated digital inputs (DI 0 ... DI 3)
Terminal Module 31 (TM31) -
digital relay outputs, isolated (DO 0 and DO 1)
CU310-2 input/output terminals -
digital output (DO 16)
If these inputs are used, for example, for the "flying measurement" function, they act
as "high-speed inputs" with virtually no time delay when the actual value is saved.
Function Manual, (FH1), 04/2014, 6SL3097-4AB00-0BP4
Drive functions