DL205 User Manual, 4th Edition, Rev. B
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Chapter 5: Intelligent Box (IBox) Instructions
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NETCFG Example
The Network Configuration IBox coordinates all of the interaction with other Network
IBoxes (NETRX/NETWX). You must have a Network Configuration IBox for each serial
port network, DCM module network, or original ECOM module network in your system.
Configuration IBoxes must be at the top of your program and must execute every scan.
This IBox defines Network# K0 to be for the local CPU serial port #2 (KF1). For local CPU
serial ports or DCM/ECOM modules, use the same value you would use in the most
significant byte of the first LD instruction in a normal RX/WX rung to reference the port or
module. Any NETRX or NETWX IBoxes that need to reference this specific network would
enter K0 for their Network# parameter.
The Workspace register is used to maintain state information about the port or module, along
with proper sharing and interlocking with the other NETRX and NETWX IBoxes in the
program. This V-memory register must not be used anywhere else in the entire program.
NOTE
: The Network Configuration IBox instruction is used without a permissive contact. The top line will
be identified in
BOLD italics
, and the instruction name and ID will be in
BOLD characters.
