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Flex M Engineered Receiver Instruction Manual
May 2019
Page 31 of 50
4.8.1 ANALOG I/O MODULE LED OPERATION
When the Flex M system is supplying power to the Analog I/O module, an LED indicates the power and
communication status of the Analog I/O module.
Figure 29. Analog I/O Module LED Placement
•
OK LED
o
Solid indicates module communication with system is good
o
3 Blinks indicates read/write error to attached CPU module
Additionally, there are eight LEDs labeled 1 through 8 on the Analog I/O module. When the LED is on,
this indicates that the module is sending/receiving a signal on that input or output.
•
LED1
o
Analog Output 1 is Active (non-zero)
•
LED2
o
Analog Output 2 is Active (non-zero)
•
LED3
o
Analog Output 3 is Active (non-zero)
•
LED4
o
Analog Output 4 is Active (non-zero)
•
LED5
o
Analog Input 1 is Active (non-zero)
•
LED6
o
Analog Input 2 is Active (non-zero)
•
LED7
o
Analog Input 3 is Active (non-zero)
•
LED8
o
Analog Input 4 is Active (non-zero)