Product overview
KL31x2
17
Version: 2.4.0
2.4
LEDs
Fig. 4: LEDs
LED
Display
K-bus power
(green)
ON
Power supply (5 V) available on the K-bus
OFF No power supply (5 V) available on the K-bus
K-Bus Run
(green)
ON
Data transmission on the K-bus is active
OFF Data transmission on the K-bus is not active
Run 1
(green)
ON
Channel 1 active:
• process data contain valid analog value
OFF Channel 1 not active:
• Calibration is performed, analog value in the process data not current (frozen or zero)
• or channel 1 is switched off (if LED error 1 not lit)
Error 1
(red)
ON
• Analog value of channel 1 is above the valid measuring range, specified through register
is set in the status byte of channel 1.
• Analog value of channel 1 is below the valid measuring range, specified through register
of
is set in the status byte of channel 1.
• Calibration is in progress. The LED goes out when the calibration is complete.
OFF
• Analog value of channel 1 is within the valid measuring range (if LED Run 1 is lit)
• or channel 1 is switched off (if LED Run 1 is not lit)
Run 2
(green)
ON
Channel 2 active:
• process data contain valid analog value
OFF Channel 2 not active:
• Calibration is performed, analog value in the process data not current (frozen or zero)
• or channel 2 is switched off (if LED error 2 not lit)
Error 2
(red)
ON
• Analog value of channel 2 is above the valid measuring range, specified through register
is set in the status byte of channel 2.
• Analog value of channel 2 is below the valid measuring range, specified through register
of
is set in the status byte of channel 2.
• Calibration is in progress. The LED goes out when the calibration is complete.
OFF
• Analog value of channel 2 is within the valid measuring range (if LED Run 2 is lit)
• or channel 2 is switched off (if LED Run 2 is not lit)
Limiting the measuring range
The terminal indicates any violation of the measuring range to the higher-level controller via the status byte.
If the current measured value is:
• greater than specified in register
, bit 1 is set in the status byte,
• smaller than specified in register
, bit 0 is set in the status byte.
In both cases, the ERROR LED of the respective channel will be on. This display can be disabled through bit