Connection Examples
The total length of the bus cable must not exceed the specified lengths. The following
table indicates physical limitations valid for specific transmission rates:
Baud rate
Max. bus length
50 kBd
1000 m
125 kBd
500 m
250 kBd
250 m
500 kBd
100 m
1000 kBd
25 m
The number of bus nodes is also limited by the specification according to ISO 11898.
The limiting value is between 32 and 100 bus nodes. depending on the used cable and
transmission rate. For further information on the maximum number of bus nodes refer to
the document “CAN Physical Layer” by the user organization CiA e. V.
8.9.2
COM1 – RS232 Interface
COM1 - RS232 interface 1
Fig. 46: RS232 interface (X19)
If you connect X19 to a standard RS232 interface of a PC (9-pole male submin D con-
nector), the used cable must be constructed as follows:
Fig. 47: RS232 cable
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Drive System SD2M - Hardware Description 036228xxF