Characteristics and Technical Specifications of the SM 335
1-14
SM 335 – High-Speed Analog Input/Output Module for the SIMATIC S7-300
6ES7 335-7HG00-8BA1
Figure 1-3 shows the various components of the cycle time for a free cycle.
Conversion time for analog input
channel CH2
Conversion time for analog input
channel CH3
Conversion time for analog input
channel CH0
Conversion time for analog input
channel CH1
Conversion time for analog output
channel CH2
Conversion time for analog output
channel CH3
Conversion time for analog output
channel CH0
Conversion time for analog output
channel CH1
Cycle
time
Fig. 1-3 Cycle time for the SM 335 free cycle
The execution times in Free Cycle mode are comprised as follows:
• Base load of a cycle: approx. 200 µs
• Execution times for the reading in of an analog channel: approx. 200 µs
• Execution time for the output of an analog value: approx. 50 µs
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