Permissible Cable Lengths For A Segment Using Rs 485 Repeaters With Order Number 6Es7 972-0Aa00-0Xa0; Length Of Droplines Per Segment - Siemens SIMATIC S5 Manual

Maximum cable The maximum cable lengths as stated in the table below are guaranteed only
length for SINEC L2 bus cables.
Table 5-6 Permissible cable lengths for a segment using RS 485 repeaters with order
9.6 to 187.5 kbaud
Length of
If you do not connect the bus cable directly to the bus connector (e.g. when
droplines
using an L2 bus terminal), you must take the maximum permissible length of
a dropline into account.
The maximum lengths for droplines per bus segment are shown in the table
below.
At baud rates of 3 Mbaud and higher, connect the PG or PCs by means of PG
droplines having the order number 6ES7 901-4BD00-0XA0. You can use
multiple droplines with this order number in a bus configuration. Other drop-
lines are not permitted.
Table 5-7 Length of droplines per segment
ET 200 Distributed I/O System
EWA 4NEB 780 6000-02a
Routing cables; connecting and installing bus connectors
number 6ES7 972-0AA00-0XA0
Baud rate Maximum cable
length of a segment
(in meters)
500 kbaud
1.5 Mbaud
3 to 12 Mbaud
Baud rate Max. length of
droplines per
segment
9.6 to 93.75 kbaud 96 m
187.5 kbaud 75 m
500 kbaud 30 m
1.5 Mbaud 10 m
3 to 12 Mbaud
Max. distance between 2
stations (in meters)
1000
400
200
100
Number of stations with
droplines measuring ...
t
1.5 m or 1.6 m
32
32
20
6
– –
10,000
4,000
2,000
1,000
3 m
32
25
10
3
–
5-19
5