Siemens SIMATIC S7-300 FM 350-1 Manual page 6

Table of contents
6 Commissioning FM 350-1 ........................................................................................................................ 75
6.1 Working steps for mechanical installation................................................................................... 76
6.2 Procedure for assigning parameters........................................................................................... 78
7 Operating Modes, parameters and commands ........................................................................................ 83
7.1 Basics on calling operating modes, settings and commands ..................................................... 84
7.2 Isynchronous mode..................................................................................................................... 85
7.3 Count modes............................................................................................................................... 86
7.3.1 Overview of the count modes...................................................................................................... 86
7.3.2 Basic principles ........................................................................................................................... 87
7.3.3 Endless counting......................................................................................................................... 90
7.3.4 Single counting............................................................................................................................ 93
7.3.5 Cyclic count................................................................................................................................. 98
7.3.6 Counting range.......................................................................................................................... 103
7.3.7 Command: Open and close gate .............................................................................................. 104
7.3.8 Behavior of the Digital Outputs ................................................................................................. 109
7.3.9 Hysteresis.................................................................................................................................. 117
7.3.10 Command: Setting the counter ................................................................................................. 120
7.3.11 Command: Latch / retrigger ...................................................................................................... 127
7.3.12 Command: Latch....................................................................................................................... 130
7.3.13 Command: Measure edge intervals .......................................................................................... 133
7.4 Measuring modes...................................................................................................................... 134
7.4.1 Overview of measuring modes.................................................................................................. 134
7.4.2 Basics........................................................................................................................................ 135
7.4.3 Frequency measuring ............................................................................................................... 140
7.4.4 Speed capture........................................................................................................................... 143
7.4.5 Period measurement................................................................................................................. 146
7.4.6 Command: Open and close gate .............................................................................................. 149
7.4.7 Behavior of the Digital Outputs ................................................................................................. 153
7.5 Triggering of a Hardware Interrupt............................................................................................ 156
8 Encoder signals and their evaluation ..................................................................................................... 159
8.1 Encoders which can be connected ........................................................................................... 160
8.2 5-V differential signals............................................................................................................... 161
8.3 24-V signals .............................................................................................................................. 163
8.4 Signal evaluation....................................................................................................................... 166
9 DB assignments..................................................................................................................................... 169
10 Errors and diagnostics ........................................................................................................................... 175
10.1 Error Display via the Group Error LEDs.................................................................................... 176
10.2 Triggering diagnostics interrupts............................................................................................... 177
10.3 Data error .................................................................................................................................. 180
10.4 Operator error ........................................................................................................................... 182
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FM 350-1 Counter module
Manual, 05/2011, A5E03648639-01