User Manual
Table Of Contents
- 1747-6.8, Direct Communication Module User Manual
- Important User Information
- Summary of Changes
- Table of Contents
- Preface
- 1 - Overview
- 2 - Quick Start for Experienced Users
- 3 - Addressing
- 4 - Module Configuration
- 5 - Installation and Wiring
- 6 - Programming
- 7 - Troubleshooting
- 8 - Application Examples
- A - Specifications
- B - DCM Addressing Worksheet
- Index
- Back Cover

User Manual
Direct Communication Module
Index
I–2
E
electrical specifications, A–1
EMC Directive, 5–1
environmental specifications, A–1
equipment needed, 2–1
errors, troubleshooting, 7–2
European Union Directives Compliance, 5–1
Examine If Open instruction (XIO), 6–7, 6–10
examples
basic DCM application, 8–1
programming, 6–2
status word bit application, 6–7
supplementary DCM application, 8–4
extended node capability
, 1–4
of scanners and adapters, 1–4
of the DCM, 1–4
specifications, 2–4, 5–3, A–1
F
FAUL
T LED, 1–1
flashing LED, 7–2
front label, 1–1
full rack, 2–3, 4–6
G
getting started, 2–1
procedure, 2–2
glossary terms, P–3
green LED, troubleshooting using, 7–2
H
hardware features, 1–1
cable tie slots, 1–1
COMM LED, 1–1
DIP switches, 1–1
FAUL
T LED, 1–1
front, side and door labels, 1–1
RIO link connector
, 1–1
self-locking tabs, 1–1
hardware overview
, 1–1
hardware features, 1–1
Hold Last State, in status word applications,
6–7
humidity rating, A–1
I
I/O Group (SW1-7 and SW1-8), 4–2
I/O group address, 3–2
I/O image tables, 3–4
image division configuration, scanner
, 1–5
image mapping, 3–5
inserting the cable tie, 5–2
installation, getting started, 2–1
installing the module, 5–1
L
labels, front, side and door
, 1–1
ladder logic instructions, addressing, 3–1
Last Rack (SW2-4), 4–6
LEDs, 7–1
blinking, 7–1
COMM (green), 7–2
FAUL
T (red), 7–1
steady state, 7–1
troubleshooting using, 7–1
link wiring, 5–2
logical group, 1–4
Logical OR bit, 6–5, 6–6, 6–10
logical rack, 1–4
logical specifications, 1–2
M
manuals, related, P–2
Module Rack Size (SW2-5 and SW2-6), 4–6
module release, 5–2
N
network specifications, A–1
network wiring, 5–3
P
physical specifications, 1–2
PLC addresses, 3–2
bit address, 3–2
I/O group address, 3–2
rack address, 3–2