Pelco cs73m-d Appendix C Message Text Insertion Commands, Command Function Command Format

APPENDIX C – MESSAGE TEXT INSERTION COMMANDS

As discussed in the Set Message Text section of this manual, the CM9760-MDA supports message text insertion protocol commands for display of text messages. The commands can be used by third-party equipment when interfacing the COM 1 or COM 2 port of the CM9760-MDA using the RS-232 or RS-422 communication standard.

Table H provides a listing of the message text insertion commands based upon the function of the command.

Table H. CM9760-MDA Message Text Insertion Commands

Command Function	Command Format
Set one line of message text	[A0][CB][00][Unit ID][Channel][Row][Message
on an MDA unit/channel/row	Text (1-24 characters)][AF][Checksum]
Set up to five lines of message	[A0][CB][01][Unit ID][Channel][Message Text (4 to
text on an MDA unit/channel	124 characters)][AF][Checksum]
Query the message text that is	[A0][CB][02][Unit ID][Channel][AF][Checksum]
displayed on an MDA unit/channel*
Clear one line of message text	[A0][CB][03][Unit ID][Channel][Row]
from an MDA unit/channel/row	[AF][Checksum]
Clear all lines of message text	[A0][CB][04][Unit ID][Channel][AF][Checksum]
from an MDA unit/channel
Clear all message text from all	[A0][CB][05][Unit ID][AF][Checksum]
channels of the selected MDA unit
Format the text block display on	[A0][CB][06][Unit ID][Channel][Format][Rows to
MDA unit/channel	Display/Scroll][Row Separation][High Message
	Time][Low Message Time][AF][Checksum]
Format the text block display on	[A0][CB][07][Unit ID][Format][Rows to Display/
all channels for the selected MDA	Scroll][Row Separation][High Message Time][Low
unit	Message Time][AF][Checksum]
Query text block format on an	[A0][CB][08][Unit ID][Channel][AF][Checksum]
MDA unit/channel
Insert message text and scroll the	[A0][CB][09][Unit ID][Channel][Message Text (1-24
other rows upward	characters)][AF][Checksum]

*The MDA response to the message text query command is the command using function byte 01.

The MDA response to the message format query command is the command using function byte 06.

Note the following about the commands shown in Table H:

¥Data within brackets is expressed as hexadecimal data. Brackets are not part of the commandsÑthe brackets are used to separate the various parts of the command to provide ease of readability.

¥First four bytes of each command are as follows: [A0][CB][function byte][Unit ID]

where:

[A0] and [CB] = 2-byte header information

[function byte] = [00] to [09], which determines the command function

[Unit ID] = [00] to [63] in packed binary code decimal (BCD) format, which defines the Unit ID number of the MDA

Pelco Manual C573M-D (11/03) 57