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Functions
5.1 CANopen
EMCY messages
The EMCY messages sent in case of error are permanently specified and cannot be configured
by the user.
In "CANopen Manager" mode, users can configure whether diagnoses are sent to the S7
controller by the PN/CAN LINK in case of error.
Received EMCY messages are signaled to the IO controller in extended PROFINET diagnoses.
This function can be activated or deactivated through configuration.
See EMCY messages (Page 36).
LEDs
The PN/CAN LINK signals its state in "CANopen Manager" mode and in "CANopen Slave" mode
with the LEDs on the front of the housing. The meaning of the LEDs is described in section
Operating state of the PN/CAN LINK / PROFINET diagnostics (Page 139).
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Operating Instructions, 03/2022, A5E39895388-AC
SIMATIC PN/CAN LINK
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