Models FL3100/3101
38
8.7.9 Options
A read returns the status of the settings for the Detector Sensitivity, Relay Delay,
Relay Latching/Non-Latching and Relay Energized/Non-Energized features
either from the Options DIP Switch or the EEPROM depending on the setting of
the EEPROM Override bit listed above. A write command changes the settings
for the EEPROM only when the EEPROM Override bit is set.
EXCEPTION -
If an attempt to change the EEPROM Options is made while the
EEPROM Override bit is not set, then the unit shall return an Exception Code 01
(Illegal Function).
These Functions are indicated on the Low Data Byte and the High Data Byte is
not used.
Function Bit Position
Conditions Access
Warn Energized 8 (MSB) 1 = Energized Read/Write
0 = Non-Energized
Alarm Energized 7 1 = Energized Read/Write
0 = Non-Energized
Warn Latched 6 1 = Latched Read/Write
0 = Non-Latched
Alarm Latched 5 1 = Latched Read/Write
0 = Non-Latched
4 8
2 1 (Time Delay in Seconds)
Alarm Time Delay 2 4 0 0 1 1 Read/Write
Alarm Time Delay 1 3 0 1 0 1 Read/Write
100 75
50 (% Sensitivity)
Sensitivity 2 2 0 0 1 Read/Write
Sensitivity 1 1 (LSB) 0 1 0 Read/Write
8.7.10 Comm 1 Address
A read returns the Comm 1 address of the FL3100, FL3101. 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 FL3100, FL3101 Address will default to 1.
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