Firmware
≤
11.00 - DMS 8.0 EN - 10/2011
L
471
8400 StateLine C | Reference manual
System bus "CAN on board"
Monitoring
10.10.2
Heartbeat protocol
The heartbeat protocol can be used for node monitoring purposes within a CAN network.
Basic workflow
[10-9] Heartbeat protocol
1. A heartbeat producer cyclically transmits a so-called heartbeat telegram to one or more
consumers.
2. The consumer(s) monitor the heartbeat telegram for arrival on a regular basis.
r: Reserved (always 0)
s: Status of the producer (0: Boot-up, 4: Stopped, 5: Operational, 127: Pre-Operational)
U
UHTXHVW
LQGLFDWLRQ
+HDUWEHDWSURGXFHU
(0(5*(1&<
+HDUWEHDWFRQVXPHUV
V
LQGLFDWLRQ
LQGLFDWLRQ
U
UHTXHVW
LQGLFDWLRQ
V
LQGLFDWLRQ
LQGLFDWLRQ
+HDUWEHDWSURGXFHUWLPH
+HDUWEHDWFRQVXPHU
WLPH
+HDUWEHDW
HYHQW
LQGLFDWLRQ
+HDUWEHDWFRQVXPHU
WLPH
107PDVWHU
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: [email protected]