Siemens SIMATIC ET 200S Operating Instructions Manual page 4

Table of contents
2.9 Evaluation of count and direction signal ................................................................................... 106
2.10 Behavior at CPU-Master-STOP ................................................................................................ 109
2.11 Technical Specifications............................................................................................................ 111
3 1Count5V/500kHz.................................................................................................................................. 115
3.1 Product Overview...................................................................................................................... 115
3.2 Clocked Mode ........................................................................................................................... 117
3.3 Example: Start 1Count5V/500kHz ............................................................................................ 119
3.4 Terminal Assignment Diagram.................................................................................................. 123
3.5 Operating mode of the 1Count5V/500kHz ................................................................................ 124
3.6 Count Modes............................................................................................................................. 125
3.6.1 Overview ................................................................................................................................... 125
3.6.2 Endless Counting ...................................................................................................................... 127
3.6.3 Once-Only Counting.................................................................................................................. 129
3.6.4 Periodic Counting...................................................................................................................... 132
3.6.5 Behavior of the Digital Inputs .................................................................................................... 135
3.6.6 Gate Functions in Count Modes ............................................................................................... 135
3.6.7 Latch Function........................................................................................................................... 137
3.6.8 Synchronization......................................................................................................................... 140
3.6.9 Behavior of the Outputs in Count Modes .................................................................................. 144
3.6.10 Assignment of the Feedback and Control Interface for the Count Modes................................ 152
3.6.11 Parameter Assignment for the Count Modes............................................................................ 160
3.7 Measurement Modes ................................................................................................................ 162
3.7.1 Overview ................................................................................................................................... 162
3.7.2 Sequence of continuous-action measurement.......................................................................... 163
3.7.3 Frequency Measurement .......................................................................................................... 167
3.7.4 Continuous Frequency Measurement....................................................................................... 169
3.7.5 Rotational Speed Measurement ............................................................................................... 172
3.7.6 Continuous Rotational Speed Measurement ............................................................................ 174
3.7.7 Period Measurement................................................................................................................. 177
3.7.8 Continuous Period Measurement ............................................................................................. 179
3.7.9 Gate Functions in Measurement Modes ................................................................................... 182
3.7.10 Behavior of the Outputs in Measurement Modes ..................................................................... 183
3.7.11 Assignment of the Feedback and Control Interfaces for the Measurement Modes.................. 185
3.7.12 Parameter Assignment for Measurement Modes ..................................................................... 192
3.8 Position feedback...................................................................................................................... 194
3.8.1 Overview ................................................................................................................................... 194
3.8.2 Position detection...................................................................................................................... 196
3.8.3 Gate Functions for Position Detection ...................................................................................... 197
3.8.4 Latch Function........................................................................................................................... 200
3.8.5 Synchronization......................................................................................................................... 203
3.8.6 Assignment of the Feedback and Control Interface for Position Feedback.............................. 204
3.8.7 Assigning Parameters for Position Feedback ........................................................................... 211
3.9 Evaluation of count and direction signal ................................................................................... 212
3.10 Behavior at CPU-Master-STOP ................................................................................................ 214
3.11 Technical Specifications............................................................................................................ 216
4
Technological Functions
Operating Instructions, 02/2007, A5E00124867-05