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Siemens SIMATIC S7-300 FM 350-1 - Count Modes Overview

Siemens SIMATIC S7-300 FM 350-1
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Operating Modes, parameters and commands
7.3 Count modes
FM 350-1 Counter module
86 Manual, 05/2011, A5E03648639-01
7.3 Count modes
7.3.1 Overview of the count modes
Overview
You define FM 350-1 functionality by setting a default mode of operation. The table shows
an overview of the count modes.
Table 7- 1 Count modes of FM 350-1
Designation Description
Continuous count with or without SW or
HW gate
FM 350-1 performs a continuous count, starting at the
current counter value.
Single count with SW or HW gate When the gate opens, FM 350-1 starts the count at the
load value, and stops at the count limit.
Cyclic count with SW or HW gate FM 350-1 starts counting in the range between the load
value and the count limit when the gate opens.
Those operating modes are enabled by programming FM 350-1.

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