Troubleshooting
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qSCALE i2 Cranes (Tool Version 3.0.34) Service Manual / Issue B / 11-2017 / ac.
3.2.13 CAN Bus Communications
CAN Bus - a serial bus protocol to connect individual systems and sensors as an alternative to conven-
tional multi-wire cables. It allows crane components to communicate on a single bus: a dual-wire net-
worked data bus with speed up to 1Mbps.
The use of a CAN Bus design allows for all nodes (sensor, controller and console) signals to be net-
worked over a common pair of cables. The signals generated by all sensors are slave signals sent with
a digital identifier over common cables. The data transmitted is used by the controller (master). The
data can be interpreted, and information and controls sent from the controller to provide crane safety
functions. Each node has a unique identifier. This allows for a common pair of shielded wires (the bus)
to carry all signals.
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