Omega A2400 manual Command $1RR Response, Bit, Byte 2 Linefeed, Parity and Baud Rate

SetUp Command 5-6

Command: $1RR

Response: *

Up to this point all communications have been sent at 300 baud. The module will not respond to any further communications at 300 baud because it is now running at 9600 baud. At this point the host computer or terminal must be set to 9600 baud to continue operation.

If the module does not respond to the new baud rate, most likely the setup data is incorrect. Try various baud rates from the host until the module responds. The last resort is to set the module to Default Mode where the baud rate is always 300.

Setting a string of RS-232C modules to a new baud rate requires special consideration. Refer to Chapter 3 for instructions.

Bit 4

Bit 4 of byte 2 is not used and should be set to ‘0’.

Table 5.2 Byte 2: Linefeed, Parity and Baud Rate.
BYTE 2
FUNCTION	DATA BIT
	7	6	5	4	3	2	1	0
LINEFEED	1
NO LINEFEED	0
NO PARITY		0	0
NO PARITY		1	0
EVEN PARITY		0	1
ODD PARITY		1	1
NOT USED				X
57600 BAUD					1	0	0	1
115200 BAUD					1	0	0	0
38400 BAUD					0	0	0	0
19200 BAUD					0	0	0	1
9600 BAUD					0	0	1	0
4800 BAUD					0	0	1	1
2400 BAUD					0	1	0	0
1200 BAUD					0	1	0	1
600 BAUD					0	1	1	0
300 BAUD					0	1	1	1