User Manual

PD57/60/86-x-1260 Hardware Manual • Hardware Version V1.10 | Document Revision V1.20 • 2019-03-22

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c:>

node

- 1

node

Host

Slave Slave Slave

CAN

termination

resistor

(120 Ohm)

termination

resistor

(120 Ohm)

}

keep distance as

short as possible

Figure 12: CAN bus structure with termination resistors

2. BUS TERMINATION:

Especially for longer busses and/or multiple nodes connected to the bus and/or high communication

speeds, the bus should be properly terminated at both ends. The PD57/60/86-x-1260 does not

integrate any termination resistor. Therefore, 120 Ohm termination resistors at both ends of the bus

have to be added externally.

3. BUS TERMINATION:

The bus transceiver used on the PD57/60/86-x-1260 units (TJA1051T) supports at least 110 nodes

under optimum conditions. Practically achievable number of nodes per CAN bus highly depend on

bus length (longer bus -> less nodes) and communication speed (higher speed -> less nodes).

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