6 Object dictionary for XN-312-GW-CAN gateway
6.4 Operational readiness monitoring
Gateway XN-312-GW-CAN 06/16 MN050003-EN
www.eaton.eu
85
Table 13:
Description of object 100D
hex
6.4.3 Object 1016
hex
Consumer Heartbeat Time
The heartbeat protocol is used to monitor the operational readiness of other
CANopen nodes.
All nodes can register when a CANopen node drops out!
Object 1016
hex
defines the interval at which a heartbeat is expected.
When using the heartbeat protocol, a device generates a heartbeat at a spe-
cific interval (please refer to "Object 1017
hex
" "Producer Heartbeat Time" for
more information). A different device then receives this heartbeat and moni-
tors the interval.
The aforementioned interval needs to be longer than the transmitter's cycle
time (please refer to "Object 1017
hex
" for more information). Heartbeat moni-
toring starts after the first heartbeat frame is received.
If the consumer heartbeat time = 0, monitoring for the corresponding CANo-
pen node will be disabled.
The interval is set as a multiple of 1 ms.
The heartbeat protocol should be viewed as an alternative to node/life guard-
ing that, in contrast to guarding, does not use remote frames. Node guarding
uses one-to-one monitoring, i.e., when using node guarding, one CANopen
node will monitor one other CANopen node. In contrast, the heartbeat proto-
col can be used to implement one-to-many monitoring, i.e., every CANopen
node for which the heartbeat protocol is enabled can be configured in such a
way as to monitor the heartbeat of every other CANopen node, including the
CAN master.
The XN-312-GW-CAN gateway can monitor a maximum of four other CANo-
pen nodes as a heartbeat consumer.
Table 14:
Description of object 1016
hex
Feature
Sub index
Description / Value
Name
Life Time Factor
Object code
VAR
PDO mapping
No
Data type
Sub index 00
hex
Unsigned 8
Access
Sub index 00
hex
rw
Default value XN-312-GW-CAN0
Sub index 00
hex
200 [ms]
Feature
Sub index
Description / Value
Name
Consumer heartbeat time
Object code
ARRAY
PDO mapping
No
Содержание XN-312-GW-CAN
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