Bradley Smoker PLC-5 user manual Configuring MCPs, If the MCP is a Following Occurs, An I/O update

Using Main Control Programs 16-3

Configuring MCPs

If the MCP is a The Following Occurs:

Ladder-logic program 1.All rungs are executed—from the first rung to the last, with all timers, counters, jumps, and subroutines active.

2.After the END instruction in the ladder program, the controller initiates an I/O update—reading local inputs, writing local outputs, reading remote buffers, and writing remote outputs to the buffer.

	3.The controller starts the next MCP.
Structured-text program 1.Code is executed normally.
	2.After the last instruction in the program, the controller initiates
	an I/O update.
	3.The controller starts the next MCP.
SFC	1.Only the active steps are scanned, and transitions from those
	active steps are examined.

2.After one complete pass through the active steps, the controller initiates an I/O update.

3.The controller starts the next MCP.

You configure MCPs on the controller configuration screen in your programming software.

Publication 1785-UM012D-EN-P - July 2005