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HE 5750 Operating Instructions
#371627 Version 1.1
In a HE 5750 filter controller system with two HE 5750 Master controllers, the HE 5750 switch
unit switches the CAN Slave periphery to one of the two Master controllers.
It controls the CAN-Bus communication between the HE 5750 Master controller and the
corresponding Slaves. If the communication between Master and Slave is interrupted, the
CAN Bus is switched to the second HE 5750 in Standby mode. This HE 5750 functions as the
Master now.
The switch unit also copies the process image and the current parameters of the active HE
5750 Master to the HE 5750 Master in Standby mode. This procedure also serves to monitor
the connected HE 5750 master controllers for function or presence of the Master controller.
Note!
A firmware update of a HE 5750 Master controller cannot be done via the
switch unit. This must be carried out directly on the HE 5750 Master
controller.
Note!
During the switching process, ‘SmartTool’ data such as texts, drawing
sets and Extra I/O are not automatically copied to the new HE 5750
Master controller.
