User manual

Toolbox 32 User Manual 1.47d www.cse-semaphore.com/mykingfisher

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Ladder Logic - Outputs

The right-most column of ladder logic is used for Ladder Output blocks. These blocks cause something to

happen - like a register bit to be set, a message to be transmitted or a calculation to be performed. Ladder

Output blocks are processed when connected to a ladder rung that is logically true. The various types of

ladder outputs are detailed in the following sections.

Output blocks include: Coil, Copy, Maths, Logic, Event Logging, Tx/Rx Comms, Pager Message, Function

and Program Blocks, P.I.D., AGA-8, AGA-9, Clock Synchronization, Report Printer and Image Monitoring

Functions.

Ladder Logic - Coil

A coil parameter can be any read/write bit. These include local register bits (eg. #R1.1), hardware register

bits (eg. #DO3.16), internal register bits (eg. #YDIAG.1) and network bits (eg. #NR5.1.1, #ND2.14.9).

Normal Coil

When the input condition is true, the parameter is turned ON. When the input condition is false, the

parameter is turned OFF. Eg. bit 1 of R1 is turned ON when the rung is true and is turned OFF when the

rung is false. As used in the topic Example - Timer Flag.

Negated Coil

When the input condition is true, the parameter is turned OFF. When the input condition is false, the

parameter is turned ON. Eg. bit 1 of R1 is turned OFF when the rung is true and is turned ON when the rung

is false.

Set Coil

When the input condition is true, the parameter is turned ON. No action is taken when the input condition is

false. Eg. bit 1 of R1 is turned ON when the rung is true and is unchanged when the rung is false.

Reset Coil

When the input condition is true, the parameter is turned OFF. No action is taken when the input condition is

false. Eg. bit 1 of R1 is turned OFF when the rung is true and is unchanged when the rung is false.