6884212中文資料圖爾克數(shù)據(jù)手冊PDF規(guī)格書

The input module DF20-N is equipped with 8

channels acc. to NAMUR, which are grouped

together in two blocks. There is one frequency input per block and three control inputs/outputs.

The module can be used as a counter or frequency input module: It is thus suited for pulse

counting of binary input signals or frequency

measurements of binary pulse sequences of

NAMUR sensors.

The counting direction can either be set externally via a control input or internally by setting

a parameter. The maximum frequency of one

block is 4 kHz; with 2 blocks the frequency is

reduced to 2 kHz.

Input and output mode can be adjusted

via the Fieldbus master. Each channel is

equipped with parametrizable wire-break/

short-circuit monitoring.

■ Frequency module for the connection of

NAMUR sensors