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
Direct Communication Module
Index
User Manual
I–3
PLC scanner output image, 3–5, 3–6
power up, system, 2–4
Program/T
est/Fault Mode bit, 6–5, 6–6, 6–7
programming examples, 6–2
physical input into both PLC and SLC –
physical output from SLC, 6–3
physical input into first SLC – physical
output from second SLC, 6–4
physical input into PLC – physical output
from SLC, 6–2
physical input into SLC – physical output
from PLC, 6–3
programming overview
, 6–1
publications, related, P–2
R
rack address, 3–2
Rack Address (SW1-1 through SW1-6), 4–3
rack size
1/2 rack, 2–3, 4–6
1/4 rack, 2–3, 4–6
3/4 rack, 2–3, 4–6
full rack, 2–3, 4–6
number of data words transferred
according to, 2–3
recording I/O addresses, B–1
red LED, troubleshooting using, 7–1
remote I/O
adapter
, 1–2
communications link, 1–2
link connector
, 1–1
removing the module, 5–2
required tools and equipment, 2–1
resistor baud rate, 2–4
RIO adapter
, 1–2
RIO communications link, 1–2
RIO link connector
, 1–1
RIO scanner status word bit examination
(decimal), 6–5
Communications Error bit, 6–5
DCM initialization bit, 6–5
Logical OR of other status word bits, 6–5
Program/T
est/Fault Mode bit, 6–5
RIO scanners, 2–2
S
scanner
, image division, 1–4
logical groups, 1–4
logical racks, 1–4
scanner image division, 1–4
configuration example, 1–5
scanners
number of physical and logical devices
supported by
, 2–3
selection, 2–2
self-locking tabs, 1–1
setting the DIP switches, 4–1
side label, 1–1
SLC addresses, 3–3
bit address, 3–3
slot address, 3–3
word address, 3–3
SLC input image, 3–5, 3–6
slot address, 3–3
specifications, A–1
cable distance, 2–4, 5–3, A–1
electrical, A–1
environmental, A–1
network, A–1
resistor size, 2–4, 5–3, A–1
temperature and humidity
, A–1
start-up instructions, 2–1
status words, 1–6, 6–5
about the, 1–6
DCM status word bit examination (octal),
6–6
RIO scanner status word bit examination
(decimal), 6–5
supplementary DCM application example,
8–4
SW1-1 through SW1-6, DIP switch, Rack
Address, 4–3
SW1-7 and SW1-8, DIP switch, I/O Group,
4–2
SW2-1 and SW2-2, DIP switch, Data Rate,
4–7
SW2-3, DIP switch, Clear On Fault, 4–7
SW2-4, DIP switch, Last Rack, 4–6