WEG CFW-11 Communications Manual page 42

a heartbeat, indicating that the communication is active and without errors. One or more consumers can monitor
these periodic telegrams, and if they cease occurring, it means that any communication problem occurred.
One device of the network can be both producer and consumer of
master can consume messages sent by a slave, making it possible to detect communication problems with the
master, and simultaneously the slave can consume
to the slave detect communication fault with the master..
The CFW-11 has the producer and consumer of
4 different producers to be monitored by the inverter.
At sub-indexes 1 to 4, it is possible to program the consumer by writing a value with the following format:
Node-ID: it allows programming the Node_ID for the
Heartbeat time
message of the producer is received. The value 0 (zero) in this field disables the consumer.
Figure 5.7 - Error control service – Heartbeat
Index
Name
Object
Type
Sub-index
Description
Access
Mappable
Range
Default value
Sub-indexs
Description
Access
Mappable
Range
Default value
Reserved
(8 bits)
: it allows programming the time, in 1 millisecond multiples, until the error detection if no
heartbeat
heartbeat
messages sent by the master, also making it possible
heartbeat
services. As a consumer, it is possible to program up to
1016h
Consumer Heartbeat Time
ARRAY
UNSIGNED32
0
Number of the last sub-index
ro
No
-
4
1 – 4
Consumer Heartbeat Time 1 – 4
rw
No
UNSIGNED32
0
UNSIGNED32
Node-ID Heartbeat time
(8 bits) (16 bits)
heartbeat
producer to be monitored.
messages. For example, the network