Message Formats | Property Management System - Communication Interface |
Room Recovery (Model 60)
These messages are used by the PMS to update the database in the Model 60 version of the NEAX. First a Recovery Start Report
The messages are grouped into a set of four messages. Within each set of four messages the format of the messages is identical, except for the Function Codes, which specify the message. Each set of messages contain more fields (and can therefore convey more information) than the preceding set.
Each set of four messages is itself a set of two pairs of messages. The first pair of messages is used when the PMS, in normal operation (i.e. not error recovery), needs to update the information on a given extension. The second pair of messages is used during recovery. This pair will only be used in response to the NEAX sending a Nop Test Recover Answer or Recovery Request message.
The first message (of either pair) is used by the PMS as an update/ request for information on an extension. If a field contains a valid entry, the NEAX database is updated; if the field is entirely filled with NULL (00H) characters, it is a request for the NEAX to send the value from the NEAX database. The second message is the response from the NEAX to the PMS.
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