CANopen Network Interface

 

 

"Change of

The asynchronous exchange of PDO in "Change of state" mode enables the rapid

state" (modes

modification of an input value, followed by immediate confirmation of the change of

254 and 255)

value. This avoids the need to wait for the master to send a request.

 

A high priority bus status is assigned to the "Change of state" mode and only the

 

updated input value is returned, not the image of the full process, thus considerably

 

reducing traffic on the bus.

 

"Change of state" corresponds to the modification of the input value (event control).

 

 

 

WARNING

 

RISK OF UNINTENDED DEVICE OPERATION

 

The "Change of State" mode must not be used for inputs/outputs whose state

 

changes continuously (such as analog inputs). The continual modification of I/Os

 

using the "Change of State" mode may block the transmission of other crucial

 

commands, resulting in the unintended operation of the device.

 

Failure to follow this instruction can result in death, serious injury, or

 

equipment damage.

 

 

 

 

1606218 02 08/2006

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Schneider Electric IP67 manual Change, State modes, Reducing traffic on the bus, Equipment damage