AN-X2-MOD-MAS Page
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Controlling Program Mode Behaviour
The ControlLogix processor that is the exclusive owner of the connection in slot 0
controls how the AN-X-MOD-MAS module scans the S908 network. For that reason,
when you map the data, you must always include a connection to the generic module in
slot 0.
When the ControlLogix processor with the exclusive owner connection to slot 0 on the
AN-X is in program mode or the connection is stopped, the AN-X stops scanning the
S908 network, just as a Modicon scanner would. Even if other ControlLogix processors
have exclusive owner connections to other slots on the AN-X and are in run mode, AN-X
does not scan the network.
You can override this behaviour by including a line with the keyword ScanModProg in
the configuration file. This causes the AN-X-MODMAS module to continue to
communicate with the S908 network when the ControlLogix processor is in program
mode. Similarly ControlLogix processors with exclusive owner connections to other
AN-X slots will also update. If the exclusive owner connection to slot 0 stops, AN-X
stops all communication with the S908 network.
WARNING!
The ScanModProg option is included for debugging since it allows
inputs to update in the ControlLogix. It is NOT recommened for normal
operation. For maximum compatibility with Modicon hardware, it
should not be used in normal operation.
Other Mappable Data
In addition to the I/O data, there are other items that can be mapped to connection input
data.
For all these items, you can assign an offset for the data within the ControlLogix input
data, or you can leave out the offset and let AN-X assign the offset automatically. If you
omit the offset, the line must start with a comma.
All items are of the form
offset [optional], ItemKeyword
If you create the ControlLogix configuration automatically when you autoconfigure the
S908 network, these items are mapped by default to ClxSlot 15.
TIP
If you map the diagnostic data to a separate connection, use a long RPI
to reduce the Ethernet traffic, since the diagnostics do not need to be
updated as frequently as I/O data.
Summary of Contents for AN-X2-MOD-MAS
Page 1: ...AN X2 MOD MAS Modicon S908 Remote I O Scanner Module User Manual ...
Page 3: ......
Page 49: ...AN X2 MOD MAS Page 49 ...
