Yamaha RCX222 User Manual page 366

1. Standard I/O interface over view
DO10 "AUTO" mode
This signal is on while the controller is in "AUTO" mode.
DO11 Return-to-origin complete
This signal is on when return-to-origin has been completed on all incremental axes
and semi-absolute axes and absolute reset has been performed on all absolute axes.
DO12 Sequence program in progress
This signal is on while a sequence program is being executed.
DO13 Auto operation in progress
This signal is on while a program is being executed in "AUTO" mode.
Chapter
DO14 Program reset output
5
This signal turns on when the program has been reset correctly and turns off when
automatic operation or step operation starts.
DO15 Batter y alarm
This signal turns on when the system backup battery or absolute battery voltage is
low.
DO16 END
This signal turns on when an IO command has ended normally.
DO17 BUSY
This signal is on while an IO command is being executed.
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