Bradley Smoker PLC-5 Specify the Scan List, Scan list includes the following, Do the Following

Communicating with Remote I/O 6-9

Specify the Scan List

A scan list is a map of the I/O devices being scanned by the scanner channel. For the channel to communicate with the I/O devices connected to it, you must create a scan list.

To	Do the Following
Create a scan list	Make sure the controller is in Remote Program or Program mode.
	1.Make sure that you defined an I/O status file on the controller configuration
	screen (see page 6-7).
	2.Accept any edits made to the channel configuration.
	3.Use the autoconfiguration function
	If you have errors when you accept edits, clear the scan list and accept edits
	again.
	If you encounter the error message “Resource not Available,” you have not
	defined an I/O status file. Define the I/O status file and try automatic
	configuration again.

Insert an entry into the scan list

Make sure the controller is in Remote Program, Program, or Remote Run mode. 1.Position the cursor at the place on the scan list where you want to insert an entry.

2.Insert an entry into the list and enter the appropriate values for the list. Important: If incorrect information is entered for an entry, the controller will not display the new configuration when you save edits.

Delete an entry for the scan list

Make sure the controller is in Remote Program, Program, or Remote Run mode. 1.Position the cursor at the place on the scan list where you want to delete an entry.

2.Delete the entry from the list.

Important: If incorrect information is entered for an entry, the controller will not display the new configuration when you save edits.

	A scan list includes the following:
For this Field:	A Scan List Contains
Rack address	1-3 octal (PLC-5/11, -5/20, -5/20E controllers)
	1-7 octal (PLC-5/30 controllers)
	1-17 octal (PLC-5/40, -5/40L, -5/40E controllers)
	1-27 octal (PLC-5/60, -5/60L, -5/80, -5/80E controllers)
	If complementary I/O is enabled, a C appears before the complemented rack
	address.
Starting group	0, 2, 4, or 6
Rack size	1/2, 1/4, 3/4, or FULL
Range	Automatically calculated based on rack address, starting module group and chassis
	size.
	An asterisk (*) after a range indicates the last valid rack entry.

Publication 1785-UM012D-EN-P - July 2005