Internal Circuits - Mitsubishi MELSEC-WS0-CPU0 User Manual

Table 14:
Displays of the input/output
LEDs on WS0-XTIO
Note
Figure 8:
Internal circuits WS0-XTIO
safe inputs and test outputs
Figure 9:
Internal circuits WS0-XTIO
outputs Q1 to Q4
Product description
Input LEDs (I1...I8)
Output LEDs (Q1...Q4)

 Green
Green (1 Hz) synchronous with the
red MS LED
Green (1 Hz) alternating with the red
MS LED
The input and output LEDs display the states with a refresh rate of approx. 64 ms.
3.8.3

Internal circuits

Meaning
Input/output is inactive.
Input/output is active.
Input/output is inactive and there is a correctable
error.
Input/output is active and there is a correctable
error.
Chapter 3
36