Omron C200HW-CORT21-V1, Operation Manual

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Communication
Section 1-3
18
rate and Node-ID must be set. Though this is possible via the network, most
devices only allow mechanical setting on the unit (DIP- or rotary switches).
The C200HW-CORT21-V1 allows storage of its configuration parameters in
non-volatile memory. At power-on, the Unit initialises with the stored
configuration parameters (see section 3).
After the device is properly configured, an NMT master must set the device
to Operational state to enable PDO communication.
1-3-7 Network length
The permissible length of a CANopen network depends on the network baud
rate. The following table lists the relationship between the baud rate and the
maximum network length.
Baud rate (kbit/s) Network length (m)
10 5000 *
20 2500 *
50 1000 *
125 500
250 250
500 100
800 50
1000 25
* For bus lengths greater than 1 km, a bridge or
repeater device is recommended.
The bus should always be terminated with 120
Ω
on both ends of the cable
to ensure proper functioning of the network communication under all
conditions.