Heartbeat - Mitsubishi Electric MELSEC iQ-R Series User Manual

1.9

Heartbeat

Heartbeat is the function to monitor and detect errors in other nodes from any CANopen node.
Function details
The producer (2) (CANopen node monitored by other nodes) sends a heartbeat message periodically to the consumer (1)
(CANopen node that monitors other nodes). The consumer checks the heartbeat message receiving interval to monitor the
producer.
(1)
: Heartbeat message (broadcast)
• Heartbeat imposes heavy load on the bus. However, the load level is half the level of the load imposed by
node guarding.
• When the flying master function is used, the heartbeat for flying master is automatically enabled. ( Page
24 Flying master)
• Node guarding may be disabled because a conflict occurs between heartbeat and node guarding. (
Page 56 Node Guarding)
1 FUNCTIONS
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1.9 Heartbeat
(2)
(2)