Bradley Smoker PLC-5 user manual Specify the Discrete Transfer Configuration Files

Communicating with a PLC-5 Adapter Channel 7-5

In this Field	Define	By Doing the Following
Last rack	Notifies the supervisory controller that	Select the check box if this is the last rack.
	this is the last chassis
	This information is important when the
	supervisory controller is a PLC-2
	controller.
Starting group	The starting group number of the rack	Cursor to the field and enter the number
		Valid entries are: 0, 2, 4 or 6.
Rack size	The number of I/O words to exchange	Cursor to the field and select the rack size, which depends on the
	with the supervisory controller	starting group you selected above:
		If you want to communicate using:
		2 words - select 1/4 (starting group 6)
		4 words - select 1/2 (starting group 4)
		6 words - select 3/4 (starting group 2)
		8 words - select FULL (starting group 0)
		For example, if you choose starting group 6, you can only transfer
		2 words. If you choose starting group 4, you can transfer 4 or 2
		words.

Specify the Discrete Transfer Configuration Files

The discrete transfer configuration files (output source file and the input destination file) are the main vehicles for discrete data and block-transfer status bits exchange between a PLC-5 adapter channel and a scanner channel or a supervisory controller (see ).

The discrete transfer configuration files can be integer, BCD, or binary data file types. Be sure to create the files specified for the input source and output source prior to specifying them. If they do not exist at the time of configuration, you will receive an error when trying to accept edits.

Publication 1785-UM012D-EN-P - July 2005