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Transferring Data Using Communication Blocks
33002479 06 07/2008 129
4.2 IEC Data Transfer Functions
At a Glance
Overview This section describes several IEC function blocks that manage data transfer to and
from nodes on a TCP/IP network.
What's in this
Section?
This section contains the following topics:
Topic Page
CREAD_REG 130
CWRITE_REG 134
READ_REG 138
WRITE_REG 141
TCP_IP_ADDR 144