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1606218 02 08/2006
LED Status Diagnostics for I/O
Status LED for I/
Os on the M12
Connectors
One LED is associated with each splitter channel. The LED status depends on the
channel configuration and its level (0 or 24 VDC).
The following figure shows the DEL addressing which correspond to the I/Os for
plastic units (on left) and metal units (on right):
LED Behavior LED Behavior according to Settings and Channel Status
Element Function
1LED
2 LED number on the plastic unit
3 Pin number displayed on the metal unit
4 Connector number for the metal unit
1
Channel configuration Input voltage Logical value LED status
Input closing function 0 VDC 0 Off
24 VDC 1 Yellow
Channel error - Red
Input opening function 0 VDC 1 Off
24 VDC 0 Yellow
Channel error - Red
Input diagnostics 0 VDC 1 Red
24 VDC 0 Off
Output 0 VDC 0 Off
24 VDC 1 Yellow
Channel error - Red