User Manual QT series generation 2.5, ID 2021, rev 3.2, January 14, 2022
This chapter describes the Dual CAN option.
With the Dual CAN option, redundancy support is improved, making the
actuator system more robust to errors.
The Dual CAN interface improves system redundancy communication and
makes a loop of actuators more robust to short circuits and break in the
cable. The actuators can be connected in a bus topology like before. In
addition, the system installations utilizing Dual CAN allow a redundant PLC
to be connected at the other end of the CAN bus. This introduces a
possibility to retain full control of all actuators in the event of a single
signal cable failure (short circuit, breakage, etc.).
Note! Due to its design, some latency will occur in each node. This results in a
lower number of nodes per loop compared to a standard CAN node.
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