Active Field Splitter (Afs) - Siemens SIMATIC AFD4 Product Information

Bus links active field distributors
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● Debounce logic reduces interference when connecting and disconnecting the spur lines
● IP30 covers for connections of the main lines
● Diagnostics using LED displays
● Power supply by means of the field bus
● Screw gland on substrate
● Grounding terminal outside
● Degree of protection IP66
● Protective coating of printed circuit board
1.3

Active field splitter (AFS)

Active field splitter (AFS)
The AFS field distributor connects 2 FDC 157 couplers to a field bus segment. It enables
operation of coupler redundancy on the line this way.
The total number of field devices on the line is 31 devices limited by a maximum current of 1
A.
Functions
If a fault occurs, the main line automatically switches to the redundant FDC 157 coupler.
Properties
● 2 M16 cable glands for the main line
● 4 M16 cable glands for the segment
● Connection using screw-type terminals
● Reverse polarity protection connections
● IP30 covers for connections of the main lines
● Diagnostics using LED displays
● Power supply by means of the field bus
● Power failure backup in case of failure of a main line
● Screw gland on substrate
● Grounding terminal outside
● Degree of protection IP66
● Protective coating of printed circuit board
Active field distributors AFD4, AFD4 (FM), AFD8 and AFS
Product Information, 02/2015, A5E03775304-AC
Introduction
1.3 Active field splitter (AFS)
7

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Simatic afd4 (fm)Simatic afsSimatic afd8

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