Allen-Bradley Compact I/O 1769-ADN DeviceNet, Руководство пользователя

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Publication 1769-UM001B-EN-P - October 2002
B-6 Explicit Messaging Application Examples
The status word written to the tag specified in the destination field of
the MSG instruction is defined as follows:
Refer to the Troubleshooting information in Chapter 4 for additional
information on Recoverable and Uncoverable, Major and Minor faults.
Get 1769 I/O Module Configuration Size
1769 I/O modules should be configured in RSNetworx for DeviceNet
when your DeviceNet system is configured. We’ll describe how to
modify 1769 I/O module configuration parameters while the system is
running. Modifying I/O module configuration parameters dynamically
is not a common practice, but for some applications it may be
necessary.
We’ll use a 1769-OF2 analog output module to get/set configuration
parameters dynamically for this example.
The first task is to determine the size of the configuration file for the
1769 I/O module. The following command will read the number of
configuration words (not bytes) from the 1769-OF2 in slot 10 of the
remote DeviceNet system by sending a CIP Generic message to the
1769 I/O module via DeviceNet. One word will be read from the 1769
I/O module which contains the word count of its configuration file.
Bit Description
0 0 = No module error detected
1 = Module detected error present
1 0 = Communication on bus OK
1 = Communication Fault on bus
2 0 = Module is not configured
1 = Module is configured
3-7 Reserved, set to 0