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Displays and connections of the AS-i master
CM 1243-2
Position of the display elements and the electrical connections
The LEDs for detailed display of the module states are located under the top enclosure cover
of the AS-i master CM 1243-2.
The terminals for AS-Interface and the functional grounding are located under the cover at
the bottom of the AS-i master CM 1243-2.
Opening the enclosure covers
Open the upper or lower enclosure cover by rotating it downwards or upwards as shown in
the figure. The enclosure covers have been extended for this purpose to form a handle.
You will find further details in the "SIMATIC S7 S7-1200 Programmable Controller" System
Manual (order number: 6ES7298-8FA30-8BH0). The S7-1200 System Manual
(http://support.automation.siemens.com/WW/view/de/36932465/0/en) is available on the
Internet.
Figure 2-1
AS-i master CM 1243-2 and AS-i data decoupling unit DCM 1271 for SIMATIC S7-1200
Manual, 04/2013, A5E02655230010A/RS-AA/003
Enclosure covers
2
17
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