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Rockwell Automation Publication 1756-RM003N-EN-P - October 2011 589
ASCII Serial Port Instructions (ABL, ACB, ACL, AHL, ARD, ARL, AWA, AWT) Chapter 17
Structured Text
osri_1.InputBit := get_control_line_status;
OSRI(osri_1);
IF (osri_1.OutputBit) THEN
AHL(0,0,0,serial_port);
END_IF;