Model FL3102
43
7.7.33 Comm 2 Address
A read returns the Comm 2 address of the FL3102. A write changes the address
to the requested address. The range of the address is 1 to 247 (01 to F7 Hex).
After the address has been changed to the slave unit, the MODBUS
communications will cease because the address has changed. Therefore, the
master will have to change its query address to the slave’s new address in order
to restart the communications.
EXCEPTION -
If the EEPROM write error occurs, then the Exception Code 04
(Slave Device Failure) is returned.
NOTE -
By grounding the RESET input during power-up cycle (approximately 10
seconds), the FL3102 Address will default to 1.
7.7.34 Comm 2 Baud Rate
A read returns the Comm 2 baud rate of the FL3102. A write changes the baud
rate to the requested baud rate. After the baud rate has been changed to the
addressed unit, the MODBUS communications will cease because the baud rate
has changed. Therefore, the master will have to change its baud rate to the
slave’s new baud rate in order to restart the communications.
Baud
Rate
Low Data
Byte
Access
19.2K 03 Read/Write
9600
02
Read/Write
4800 01 Read/Write
2400
00
Read/Write
Figure 52 Comm 2 Baud Rate
This function is indicated on the Low Data Byte and the High Data Byte is not
used.
EXCEPTION -
If an illegal data value is entered which is not listed above, then
the Exception Code 03 (Illegal Data Value) is returned.
EXCEPTION -
If an EEPROM write occurs, then the Exception Code 04 (Slave
Device Failure) is returned.
NOTE -
By grounding the RESET input during power-up cycle (approximately 10
seconds), the FL3102 Baud Rate will default to 19.2K.