IL05003003E.pdf
LED or D/A LED should blink.
4.
After receiving the first RS-485 command the A/D LED or D/A LED will blink.
5.
If the input or output exceeds the upper or lower bounds, then the ERROR LED will
blink.
6.
When main ELC and extension unit communicate time-out or abnormal interrupt, LED
ERROR of extension unit will keep lighting.
