Digi-Star EZII Escape Computer Command Set - Manual (Page 39)

EZII Escape Computer Command Set
39
D36 48 Rev G November 30, 2009
Eb - Send ALL EID Data Fields Command:
This command sends ALL twenty alpha-numeric data fields (26 characters in length) from the sw4600
indicator "DATA" screen from the indicator to a computer using the computer port on the indicator. This
command is only valid on a SW4600 EID indicator.
This command includes the following information:
Start new command: <ESC>
Command identifier: Eb
Data number to print: -99999
End of command: <EOT>
Send ALL EID Data Fields Command Examples:
When the "Send ALL EID Data Fields Command" string is sent to the indicator
<ESC>Eb-99999<EOT>
and the "Send ALL EID Data Fields Command" is completed successfully, then the <ACK> (Hex value
0x06) character will be returned only once after the last Data field. If the command fails, the <NAK> (Hex
value 0x15) character will be returned.
The response from the indicator will be as follows for EACH of the twenty data fields:
DDDDDDDDDDDDDDDDDDDDDDDDDD,C<CR><LF>
“DDD” = EID "DATA" field information (26 characters)
C = CheckSum character (See Checksum calculation description located below)
<CR> = 'Carriage Return' . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dec 13 Hex 0D
<LF> = 'Line Feed' . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dec 10 Hex 0A
After the last EID Data Field is sent from the indicator, it will be followed by an <ACK> character,
('Acknowledge' [06] hex or [06] decimal).
CheckSum Calculation
1. XOR bits of each character in the Data Field ( DDDDDDDDDDDDDDDDDDDDDDDDDD ) 26
characters only not the comma
2. AND the result with decimal 63 (Hex 3F) to keep the lower 6 bits.
3. OR the results with 64 (Hex 40) to make it a printable character.