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ifm
Programming Manual BasicDisplay CR0452 v03.02
05 / 2018
ifm function elements
ifm function elements for the device CR0452
CANOPEN_GETEMCYMESSAGES
7921
= Get emergency messages
Unit type = function block (FB)
Unit is contained in the library
ifm_CANopen_NT_Vxxyyzz.LIB
Symbol in CODESYS:
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Description
7923
CANOPEN_GETEMCYMESSAGES returns all emergency messages that have been received by the
controller from other nodes in the network since the last deletion of messages.
The list can be reset by setting the according input. A maximum of MAXEMCYMSGS messages is
stored. Each message contains information from which the node it was sent. The most recent
message is in index 0.
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Parameters of the inputs
7924
Parameter
Data type
Description
EXECUTE
BOOL := FALSE
FALSE
TRUE (edge):
execute function element once
otherwise: function element is not active
A function element already started is processed.
CHANNEL
BYTE
CAN interface (1...n) depending on the device
RstList
(optional use of the parameter)
BOOL := FALSE
TRUE:
Provide list with accumulated CAN messages
at the output and then delete
FALSE:
function element is not executed