6 | Connection
STOBER
14
11/2019 | ID 442710.03
6
Connection
For network connection, PROFINET only allows switches; these in turn allow for flexible network topology and nearly
unlimited network expansion of several kilometers at maximum speed.
6.1
Selecting suitable lines
The PROFINET transmission technology is based on the Fast Ethernet standard.
A PROFINET network generally consists of symmetrical, shielded copper cables twisted in pairs (shielded twisted pair, CAT
5e quality level).
Signals are transmitted according to the
method, i.e. with a transfer rate of 100 Mbps at a frequency of
125 MHz.
A maximum of 1440 bytes can be transferred per frame. The maximum cable length is 100 m.
PROFINET cables exist in different versions that are tailored to different application scenarios and ambient conditions.
We recommend using the cables specified in the PROFINET installation guidelines. They are adjusted for use in automation
technology with regard to usage, resistance, EMC properties and color coding.
There are type A, B and C cables, differentiated by installation type:
§
Type A
4-wire shielded copper cable for fixed installation
§
Type B
4-wire shielded copper cable for flexible installation
§
Type C
4-wire shielded copper cable for constant movements
6.2
X200, X201: Fieldbus connection
In order to be able to connect the drive controllers to other PROFINET nodes, an integrated switch with both X200 and X201
RJ-45 sockets is provided. The sockets are located on top of the device. The associated pin assignment and color coding
correspond to the EIA/TIA-T568B standard.
Socket
Pin
Designation
Function
1|2| ... |7|8
1
Tx+
Communication
2
Tx−
3
Rx+
4
—
—
5
—
—
6
Rx−
Communication
7
—
—
8
—
—
Tab. 1: X200 and X201 connection description
