USER MANUAL Manual

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Remote I/O Communications
This chapter describes the run mode operations for the Remote I/O
version of the DL40 Plus and contains the following sections:
Section Page
Overview of Remote I/O Communications 8–2
Remote I/O Terminology 8–4
Typical Configurations 8–8
Processors and Corresponding Scanners 8–10
Physical vs Logical Addressing 8–11
Triggering Messages 8–13
Returning Data to the PLC 8–14
Sending Variables 8–15
Handshake Bit 8–16
Message/Variable/Slave Run Mode 8–17
Message/Variable Run Mode 8–25
Message List Run Mode 8–26
Bit Trigger Run Mode 8–32
Chapter Objectives