14: DATA CONVERSION INSTRUCTIONS14-14 « FC4A MICRO SMART USER ’S MANUAL »ALT (Alternate Output)Applicable CPU ModulesValid OperandsFor the valid operand number range, see pages 6-1 and 6-2.Since the ALT instruction is executed in each scan while input is on, a pulse input from a SOTU or SOTD instruction mustbe used.Example: ALTFC4A-C10R2/C FC4A-C16R2/C FC4A-C24R2/C FC4A-D20K3/S3 FC4A-D20RK1/RS1 & FC4A-D40K3/S3— — — — XOperand Function I Q M R T C D Constant RepeatD1 (Destination 1) Bit to turn on and off — X X X — — — — —When input is turned on, output, internal relay, or shift register bit designated byD1 is turned on and remains on after the input is turned off.When input is turned on again, the designated output, internal relay, or shift reg-ister bit is turned off.The ALT instruction must be used with a SOTU or SOTD instruction, otherwise thedesignated output, internal relay, or shift register bit repeats to turn on and off ineach scan.ALT D1*****SOTUD1Q0I0ALTWhen input I0 is turned on, output Q0 designated by operand D1 is turned on andremains after input I0 is turned off.When input I0 is turned on again, output Q0 is turned off.SOTUInput I0Output Q0ONOFFONOFF
