LG Electronics 120S user manual Communication Functions List of commands, Cpu

Chapter 8 Communication Functions

8.1.4 List of commands

Classification				Command
			Main command		Command type				Treatment
Items			Code	ASCII code	Code	ASCII code
	Individual		r(R)	H72	SS		5353	Reads data from device of Bit, Byte, Word type.
Reading				(H52)
device	Continuous		r(R)	H72	SB		5342	Reads device Word in block unit.
				(H52)				(Continuous reading Bit is unavailable)
	Individual		w (W)	H77	SS		5353	Writes data to device of Bit, Byte and Word type.
Writing				(H57)
device	Continuous		w(W)	H77	SB		5342	Writes data to Byte and Word type in block unit.
				(H57)				(Continuous reading Bit is unavailable)
CPU			r(R)	H73	ST		5354	Reads flag list like PLC operation status and error
Status reading				(H53)				information.
Classification				Command
			Main command		Register No.				Treatment
Item
		Code		ASCII code	Register		ASCII code
					no.
Monitoring variable			x(X)	H78	H00~H09		3030 ~ 3039		Register device to monitor.
register				H58
Execution of			y(Y)	H79	H00~H09		3030 ~ 3039		Execute registered device to monitor.
monitoring				(H59)

Remark

MASTER-K120S main unit identifies capitals or small letters for main commands, but not for the others.

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