Bradley Smoker PLC-5 user manual Relay Instructions

D-2Instruction Set Quick Reference

Relay Instructions

Instruction							Description
		I:012				Examine On	Examine data table bit I:012/07, which corresponds to terminal
						XIC	7 of an input module in I/O rack 1, I/O group 2. If this data table
							bit is set (1), the instruction is true.
07
		I:012				Examine Off	Examine data table bit I:012/07, which corresponds to terminal
						XIO	7 of an input module in I/O rack 1, I/O group 2. If this data table
							bit is reset (0), the instruction is true.
07
	O:013					Output Energize	If the input conditions preceding this output instruction on the
		(	)			OTE	same rung go true, set (1) bit O:013/01, which corresponds to
							terminal 1 of an output module in I/O rack 1, I/O group 3.
01
	O:013					Output Latch	If the input conditions preceding this output instruction on the
		( L )				OTL	same rung go true, set (1) bit O:013/01, which corresponds to
							terminal 1 of an output module in I/O rack 1, I/O group 3. This
01
							data table bit remains set even if the rung condition goes false.
	O:013					Output Unlatch	If the input conditions preceding this output instruction on the
		( U	)			OTU	same rung go true, reset (0) bit O:013/01, which corresponds to
							terminal 1 of an output module in I/O rack 1, I/O group 3. This is
01
							necessary to reset a bit that has been latched on.
01						Immediate Input	This instruction updates a word of input-image bits before the
		( IIN		)		IIN	next normal input-image update. Address this instruction by
							rack and group (RRG). For a local chassis, program scan is
							interrupted while the inputs of the addressed I/O group are
							scanned; for a remote chassis, program scan is interrupted only
							to update the input image with the latest states as found in the
							remote I/O buffer.
01						Immediate Output	This instruction updates a word of output-image bits before the
		( IOT			)	IOT	next normal output-image update. Address this instruction by
							rack and group (RRG). For a local chassis, program scan is

interrupted while the outputs of the addressed I/O group are updated; for a remote chassis, program scan is interrupted only to update the remote I/O buffer with the latest states as found in the output image.

Publication 1785-UM012D-EN-P - July 2005