LX3V-4TC
6
WECON Technology CO., LTD.
disconnection.
b15 or b8
b7
b6
b5
b4
b3
b2
b1
b0
Not used
High Low High Low High Low High Low
CH4
CH3
CH2
CH1
Low:
Latches ON when temperature measurement data goes below the lowest temperature
measurement limit.
High:
Turns ON when temperature measurement data goes above the highest temperature
measurement limit, or when a thermocouple is disconnected.
When an error occur the temperature data before the error is latched. If the measured value
returns to within valid limits the temperature data returns to normal operation. (Note: The
error remains latched in (BFM #28))
An error can be cleared by writing K0 to BFM #28 using the TO instruction or turning off the
power.
2)
Buffer memory BFM#29: Error states
BFM#29 Bit device
ON
OFF
b0: Error
When any of b1 to b3 is ON A/D
conversation is stopped for the
error channel
No error
b1: Reserved
Reserved
Reserved
b2: Power source
24V DC power supply failure
Power supply normal
b3: Hardware error
A/D
converter
or
other
hardware failure
Hardware normal
b4 to b9: Reserved
Reserved
Reserved
b10: Digital range error
Digital
output/analog
input
value is outside the specified
range.
Digital output value is normal
b11: Averaging error
Selected number of averaged
results is outside the available
range. See BFM#1 to #4
Averaging is normal (between 1
to 256)
b12 to b15: Reserved
Reserved
Reserved
3)
Identification Code Buffer Memory BFM #30
