HMS AnyBus-X J1939, Руководство пользователя

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Example Application 4-4
© 2002 HMS Industrial Networks
Document Id:
SCM-7801-026
Output Data Points
The output data points determine what PGNs are going to be produced by the
AnyBus-X on J1939, and what the content of those PGN messages is going to be.
Since the example application only needs to produce 16 bits of data in a single
PGN message, the resulting configuration is quite simple. It is shown in Figure 4-
6.
The single data point specifies that 2 bytes of data from the first word of the Out-
put table is going to be copied into the first 2 bytes of the message. The message
will be transmitted with a PGN of 256 every 100ms. The message will be broad-
cast (Target Address 255) so that it can be seen by everyone on the network.
The Modbus register address 40001 will be used by the system controller to set
the data for the message.
Figure 4-6 Example J1939 Output Configuration