Rockwell Automation 1769-ASCII Compact Module - Manual (Page 22)

22 Compact 1769-ASCII Module
Publication 1769-IN068B-EN-P - May 2005
Configuration File
The 1769-ASCII module supports a configuration assembly that is accessible
through the Assembly Object (Class 4), Instance 102. The configuration
assembly is 31 words. The addresses assume a 16-bit data structure where all
16-bit values are INT
(1)
. The least significant word occupies the smaller byte
addresses.
(1)
INT = Integer range of -32768 to +32767 decimal, 0000 to FFFF hexadecimal.
Wo
rd Description Values Valid Data Values
0 Data Buffer Mode 0…1 0 = alternate mode
1 = simultaneous mode
Channel 0
1 Serial Character Framing 0…8 0 = 7N2, 1 = 7E1, 2 = 7O1, 3 = 8N1, 4 =
8N2, 5 = 8E1, 6 = 8O1, 7 = 7E2, 8 = 7O2
2 Serial Port Speed 0…7 0 = 9600, 1 = 1200, 2 = 2400, 3 = 4800, 4
= 19200, 5 = 38400, 6 = 57.6k, 7 = 115.2k
(half-duplex only)
Serial Port Receive Data
3 Max Number of Receive
Characters 0…200 In Simultaneous mode, the total number
of channel 0 characters plus channel 1
characters cannot exceed 200.
4 Receive Record Start Mode 0…2 0 = ignore, 1 = exclude, 2 = include start
delimiter
5
Receive Start Delimiter
(1) 0…127/255 0…0x7f (0…127) for 7-bit data
0…0xff (0…255) for 8-bit data
6 Receive Record End Mode 0…2 0 = ignore, 1 = exclude, 2 = include end
delimiter
7
Receive End Delimiter
(1) 0…127/255 0…0x7f (0…127) for 7-bit data
0…0xff (0…255) for 8-bit data