Model FL3112
32
7.7.10 Baud
Rate
A read returns the baud rate of the FL3112. 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. These Functions operate on the Low Data Byte
Baud Rate
Low Data Byte
Access
19200
03
Read/Write
9600
02
Read/Write
4800
01
Read/Write
2400
00
Read/Write
High Data Byte 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 error occurs, then the Exception Code 04 (Slave Device
Failure) is returned.
7.7.11 Data
Format
A read returns the data format of the FL3112. A write changes the data format to the
requested data format. After the data format has been changed to the addressed unit, the
Modbus communications may cease or start producing comm errors because the data
format has changed; therefore the master will have to change its data format to the slave’s
new data format in order to restart or provide proper communications.
These Functions operate on the Low Data Byte.
Data Parity Stop Format Low
Data
Byte Access
8 None 1 8-N-1 00
Read/Write
8 Even 1 8-E-1 01
Read/Write
8 Odd 1 8-O-1 02
Read/Write
8 None 2 8-N-2 03
Read/Write
High Data Byte Not Used
Exception: If an EEPROM write error occurs, then the Exception Code 04 (Slave Device
Failure) is returned.
7.7.12
Fire COPM Fault Total
A read indicates the Total Number of Fire Channel Window or Sensor COPM Faults that
occurred in the slave device. This fault is usually caused by a dirty Window or faulty Fire
Channel Sensor or Circuitry. The maximum count is 255 and then the counter will roll over
to zero and begin counting again.
