Configuration parameters (CFG)
5.2 CFG1: COM interface
RF290R
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Configuration Manual, 09/2014, C79000-G8976-C377-01
Name
Description
COM-
ADR
Bus address of the reader (0 .. 254) for communication via the asynchronous interface.
Notes:
•
When this parameter is saved on the reader, a plausibility test is run. If an error occurs, the reader replies
with STATUS = {0x11}.
•
The address 255 must not be configured.
•
The reader can be addressed at any time using the COM address 255 in the transmit protocol. It then
replies with the set address.
BAUD
Here you set the baud rate of the asynchronous interface.
BAUD
Baud rate
0x05
4800 Baud
0x06
9600 Baud
0x07
19200 Baud
0x08
38400 Baud
0x09
57600 Baud
0x0A
115200 Baud
Notes:
•
When this parameter is saved on the reader, a plausibility test is run. If an error occurs, the reader replies
with STATUS = {0x11}.
•
A change to the baud rate only takes effect after writing/saving the configuration block CFG1 in the
EEPROM and resetting the reader.
•
If the user sets an invalid baud rate, the reader sets the baud rate to 38,400 Bd.
TRANS-
FORM
With this byte, you define various parameters of the data transfer format of the asynchronous interface.
Bit
7
6
5
4
3
2
1
0
Function
0
0
0
0
S
D
P
Function
Description
P
Type of parity
•
b00 none
•
b01 even (default)
•
b10 odd
•
b11 reserved
D
Number of data bits
•
b0 1 bit
•
b1 reserved
S
Number of stop bits
•
b0 8 bits
•
b1 reserved