Product description
Chapter
3
Operating Instructions
10
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Germany
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8014012/1EF3/2021-12-08
Subject to change without notice
3.3
Integration in the PROFIBUS
A3M60 Basic
The A3M60 Basic is a PROFIBUS peripheral device and is integrated in the PROFIBUS as a
slave.
The A3M60 Basic complies with the requirements for the PROFIBUS<DP protocol V0 as per
EN 50 170<2 and the requirements for the encoder profile version 1.1 class 1 and class 2.
Version DP<V0 of the A3M60 Basic communicates using cyclic data exchange with the
master.
The encoder is an input/output device. This means that the encoder uses data from the
master on the bus (output data) and also produces data for the bus itself (input data).
Tab. 3: Realizable cable
lengths for the RS 485
interface
Note
3.3.1
RS9485 interface
PROFIBUS DP and therefore also the A3M60 Basic use RS<485 for the transmission
technology. The cabling is twisted pair. The transmission speed can be selected in the bus
system in the range between 9.6 kbit/s and 12 Mbit/s, the A3M60 Basic automatically
adjusts to suit.
The following cable lengths can be realized as a function of the transmission speed:
Baud rate [kbit/s]
9.6
19.2
93.75
187.5
500
1500
12000
Cable length [m]
1200
1200
1000
1000
400
200
100
Up to 32 stations (masters or slaves) can be connected together in a segment. With more
than 32 stations, repeaters (line amplifiers) must be used to connect the individual bus
segments.
3.3.2
GSD file
Common configuration tools (e.g. STEP7 for SIMATIC) require a GSD file to integrate the
device into the network.
The GSD file STEG0CA7.gsd for the A3M60 Basic is available at www.sick.com for
download.
