What this manual contains, This manual is divided into five units – Rockwell Automation 1770, D17706.5.16 Ref Mnl DF1 Protocol Command User Manual
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About This Manual
P–2
1770Ć6.5.16 Ċ October, 1996
This manual is divided into five units:
Chapter 3,
Using HalfĆduplex
Protocol to Send and
Receive Messages
Chapter 2,
Understanding DF1
Protocol
➊
Network
Basics
➋
Protocol
➌
Message
Packets
➍
Module
Diagnostics
Chapter 1,
Network Layers
➎
Reference
Chapter 4,
Using FullĆduplex
Protocol to Send and
Receive Messages
Chapter 6,
Application Layer
Message Packets
Chapter 5,
DataĆlink Layer
Message Frames
Chapter 7,
Communication
Commands
Chapter 8,
Message Packet
Status Codes (STS,
EXT STS)
Chapter 10,
Diagnostic Status
Information
Chapter 9,
Diagnostic Counters
Chapter 12,
Uploading and
Downloading
Chapter 11,
Data Encoding
Chapter 13,
PLC Addressing
Chapter 14,
Line Monitor
Examples
Chapter 15,
ASCII Codes
➊
➋
➌
➍
➎
gain an understanding of
the network
•
understand what DF1
protocol is
•
understand the difference
between halfĆduplex and
fullĆduplex protocols
•
properly configure the
dataĆlink layer of your
software driver
•
understand each part of a
message packet
•
learn message packet
formats for all commands
•
asynchronous link status
codes that may be sent in
the STS fields of your
message packet
•
diagnostic counters
contained in each interface
module
•
information returned from
each interface when your
computer sends a
diagnostic status command
•
data encoding and
conversion information
•
upload and download
procedures for the PLCĆ2,
PLCĆ3 and PLCĆ5
processors
•
information on addressing
PLCĆ2, PLCĆ3, PLCĆ5, and
PLCĆ5/250 processors
•
line monitor examples that
show actual commands
being sent and provide an
explanation of each
example
•
hex and binary values for
ASCII characters
What This Manual
Contains