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Appendix

D-1

ControlNet I/O MapEntry Status Words

and Error Messages

The ControlNet status file is an integer data-table file that you specify and

configure with the I/O map for scheduled-I/O usage. It containing status

information about all of the ControlNet network’s scheduled I/O

connections. Each I/O map-table entry has a status-file offset field

pointing to three status words associated with the connection.

0000102003040500607080091011120131415

Reset

Inhibit

Data Invalid

Connection Error

Reserved Reserved

First

ord

Second and Third W

ords

Error Messages

0000102003040500607080091011120131415

If these status words are for a 1794 Flex I/O

module and there is no connection error,

any 1's set in bits 00 through 07 of the third

word indicate errors in the corresponding

slots (numbered 0 through 7)

If these status words are for a Peer In

or a Peer Out and there is no connection

error, a 1 set in bit 00 of the third word

indicates that the other (peer) processor

is in Run mode

I/O MapEntry Status Words