This request command allows automation equipment to read
the text descriptions that are stored in the control.
The control will response with a {@link TextDescriptionResponse}.
NOTE! The {@link TextDescriptionResponse} may not be for the
address requested! If there is no description for the requested
address the next addresses will be searched until one with a
description is found (or, if none are found, an address of 0 will
be returned).
From the protocol specification:
If the first character in a requested name is a “space” or less,
then the next names are searched until a name is found whose first
character is greater than “space” or the “Show On Keypad” bit is
set. If no valid names are found, a “000” for the NNN address is
returned. This speeds up the loading of names so that invalid
names are not returned. M1 version 2.4.6 or later.
see
4.29.1 Request ASCII String Text Descriptions (sd)
Request ASCII String Text Descriptions
This request command allows automation equipment to read the text descriptions that are stored in the control.
The control will response with a {@link TextDescriptionResponse}.
NOTE! The {@link TextDescriptionResponse} may not be for the
addressrequested! If there is no description for the requested address the next addresses will be searched until one with a description is found (or, if none are found, an address of0will be returned).From the protocol specification:
4.29.1 Request ASCII String Text Descriptions (sd)