Rockwell-automation 57C409 2 Channel Analog Input Module Manuel d'utilisateur télécharger pdf (Page 10)

2Ć2

O/A

Figure 2.1 Ć Typical Input Circuit

There are 4 LED indicators on the faceplate of the module which

reflect the status of the onĆboard 4mhz clock. The top LED indicates

whether common clock, which can be generated from numerous

modules, is on. The next LED indicates whether this module is driving

the common clock. The bottom two LEDs are used for factory testing

purposes only and should be ignored by the user. See figure 2.2.

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Rockwell-automation 57C409 2 Channel Analog Input Module Manuel d'utilisateur Page 10