|
LED |
State |
Color |
LED = OFF |
LED = ON |
LED flashes |
|
|---|---|---|---|---|---|---|
 |
DO0 ... DO15 |
Digital output |
Yellow |
Output is OFF |
Output is ON |
-- |
|
DC16 ...DC23 |
Digital input/output |
Yellow |
Input/output is OFF |
Input/output is ON 1) |
-- |
|
|
AI0 ... AI3 |
Analog input |
Yellow |
Input is OFF |
Input is ON 2) |
-- |
|
|
AO0 ... AO1 |
Analog output |
Yellow |
Output is OFF |
Output is ON 2) |
-- |
|
|
UP |
Process supply voltage 24 V DC via terminal |
Green |
Process supply voltage is missing |
Process supply voltage OK |
-- |
|
|
CH-ERR1 |
Channel error, error messages in groups (digital inputs/outputs combined into the groups 1, 2, 3, 4) |
Red |
No error or process supply voltage is missing |
Severe error within the corresponding group |
Severe error within the corresponding group (e.g. short circuit at an output) |
|
|
CH-ERR2 |
Red |
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|
CH-ERR3 |
Red |
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|
CH-ERR4 |
Red |
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|
CH-ERR 3) |
Module error |
Red |
-- |
Internal error |
-- |
|
|
1) Indication LED is ON even if an input signal is applied to the channel and the supply voltage is off. In this case the module is not operating and does not generate an input signal. |
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|
2) Brightness depends on the value of the analog signal |
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|
3) All of the LEDs CH-ERR1 to CH-ERR4 light up together |
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