Alt (Alternate Output) - IDEC FC4A-C10R2 User Manual

Fc4a series microsmart micro programmable logic controller

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ALT (Alternate Output)

Applicable CPU Modules

FC4A-C10R2/C

FC4A-C16R2/C

Valid Operands

D1 (Destination 1)

For 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 must

Example: ALT

When input is turned on, output, internal relay, or shift register bit designated by

D1 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 the

designated output, internal relay, or shift register bit repeats to turn on and off in

FC4A-C24R2/C

Bit to turn on and off

When input I0 is turned on, output Q0 designated by operand D1 is turned on and

remains after input I0 is turned off.

When input I0 is turned on again, output Q0 is turned off.

FC4A-D20K3/S3

FC4A-D20RK1/RS1 & FC4A-D40K3/S3

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