Rockwell Automation 1203 User Manual
Allen-Bradley
Bulletin 1203
Serial Communications
User
Module
(Series B)
RS232/422/483 (Using DF1 Protocol)
DH485
(Cat. No. 1203–GD2, –GK2, –GM2)
Manual
Important User Information
Solid state equipment has operational characteristics differing from
those of electromechanical equipment. “Safety Guidelines for the
Application, Installation and Maintenance of Solid State Controls”
(Publication SGI-1.1) describes some important differences between
solid state equipment and hard–wired electromechanical devices.
Because of this difference, and also because of the wide variety of
uses for solid state equipment, all persons responsible for applying
this equipment must satisfy themselves that each intended
application of this equipment is acceptable.
In no event will the Allen-Bradley Company be responsible or liable
for indirect or consequential damages resulting from the use or
application of this equipment.
The examples and diagrams in this manual are included solely for
illustrative purposes. Because of the many variables and
requirements associated with any particular installation, the
Allen-Bradley Company cannot assume responsibility or liability for
actual use based on the examples and diagrams.
No patent liability is assumed by Allen-Bradley Company with
respect to use of information, circuits, equipment, or software
described in this manual.
Reproduction of the contents of this manual, in whole or in part,
without written permission of the Allen-Bradley Company is
prohibited.
Throughout this manual we use notes to make you aware of safety
considerations.
ATTENTION: Identifies information about practices
or circumstances that can lead to personal injury or
!
Attentions help you:
death, property damage, or economic loss.
• identify a hazard
• avoid the hazard
• recognize the consequences
Important: Identifies information that is especially important for
successful application and understanding of the product.
PLC, PLC–2, PLC–3, PLC–5, SLC, SLC 500, PanelView, RediPANEL, Data Highway Plus, and Dataliner are trademarks of
Allen-Bradley Company, Inc.
IBM is a registered trademark of International Business Machines, Incorporated.
Preface
Table of Contents
Who Should Use this Manual P–1. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Purpose of this Manual P–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contents of this Manual P–2. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Related Documentation P–2. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Terms and Abbreviations P–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Conventions P–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Firmware Support P–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety Precautions P–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Serial Device Compatibility P–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Allen–Bradley Support P–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Local Product Support P–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Product Assistance P–4. . . . . . . . . . . . . . . . . . . . . . . .
Product Description
Installation
Chapter 1
Chapter Objectives 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Module Description 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SCANport Device Compatibility 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuration Switches 1–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 2
Chapter Objectives 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting Module Configuration Switches 2–1. . . . . . . . . . . . . . . . . . . . .
Switch SW1 2–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DF1/DH–485 Address Selection 2–4. . . . . . . . . . . . . . . . . . . . . .
DF1 Address Selection 2–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Switch SW2 2–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Switch SW3 2–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mounting the Serial Communications Module 2–10. . . . . . . . . . . . . . . . .
Enclosed Style Serial Communications Module Dimensions 2–12. . . . . .
Connecting Cables 2–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1746-BAS Module Serial Connections 2–13. . . . . . . . . . . . . . . . . .
IBM PC Compatible Serial Connections 2–14. . . . . . . . . . . . . . . . .
1747–AIC Link Coupler Serial Connections 2–14. . . . . . . . . . . . . .
PLC5 Channel 0 Serial Connections 2–15. . . . . . . . . . . . . . . . . . .
SCANport Link Connection 2–16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1305 Drive 2–16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1336 PLUS and 1336 FORCE 2–17. . . . . . . . . . . . . . . . . . . . . .
1394 2–17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SMP 3 2–17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Supply Connections 2–18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contentsii
SCANport Datalink
Operation
Configuring and Interfacing
Block Transfer Emulation
Instructions
Chapter 3
Chapter Objectives 3–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SCANport Datalinks 3–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 4
Chapter Objectives 4–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Serial Communications Module Data Table Structure 4–1. . . . . . . . . . .
Supported PCCC Command List 4–2. . . . . . . . . . . . . . . . . . . . . .
Data Table Structure 4–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuration Examples 4–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DF1 Messaging with a PLC–5/80 Example 4–9. . . . . . . . . . . . . . .
DF1 Messaging with a 1746–BAS Module Example 4–1 1. . . . . . . .
DH–485 Messaging with a SLC5/03 Interface 4–13. . . . . . . . . . . . .
Chapter 5
Chapter Objectives 5–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Block Transfer Status Word 5–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Scattered Parameter Value Read 5–2. . . . . . . . . . . . . . . . . . . . . . . . .
Scattered Parameter Value Write 5–4. . . . . . . . . . . . . . . . . . . . . . . . .
Product ID Number Read 5–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parameter Read Full 5–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parameter Value Read 5–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parameter V alue W rite 5–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EE Memory Functions 5–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fault Clear/Reset 5–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fault Queue Entry Read Full 5–16. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fault Queue Size 5–18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Trip Fault Queue Number 5–19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting
Specifications
Chapter 6
Chapter Objectives 6–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LED Locations 6–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LED Troubleshooting Table 6–2. . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 7
Chapter Objectives 7–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Product Specifications 7–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Module Compatibility 7–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preface
Preface
Read this preface to familiarize yourself with the rest of the manual.
This preface covers the following topics:
• who should use this manual
• the purpose of this manual
• terms and abbreviations
• conventions used in this manual
• safety precautions
• Allen–Bradley support
Who Should Use this Manual
Purpose of this Manual
Use this manual if you are responsible for setting up and servicing
the Serial Communications Module. You must have previous
experience with and a basic understanding of communications
terminology, configuration procedures, required equipment, and
safety precautions.
To use this Serial Communications Module efficiently, you must be
able to program and operate serial communications devices, as well
as have a basic understanding of the parameter settings and functions
of the device to which you are communicating.
This manual is an installation and user guide for the Serial
Communications Module. The Serial Communications Module is
available for products that include the SCANport communications
port.
This manual provides you with the following:
• an overview of the Serial Communications Module
• the procedures you need to install, configure, and troubleshoot the
Serial Communications Module
For information on specific features of Allen–Bradley products
mentioned within this manual, refer to the user manual for that
product.
Important:You should read this manual in its entirety before
installing, operating, servicing, or initializing the Serial
Communications Module.
1203–5. 5 September 1995
P–2
Contents of this Manual
Chapter Title Contents
Describes the purpose, background, and scope of
Preface
this manual. Also specifies the audience for whom
this manual is intended.
1 Product Description
2 Installation
3
4
5
6 Troubleshooting
7 Specifications
SCANport Datalink
Operation
Configuring and
Interfacing
Block Transfer Emulation
Instructions
Explains the Serial Communications Module’s
features, configuration, and diagnostics.
Provides procedures for mounting, connecting
power, configuring switches, cabling, and
connecting hardware.
Provides information for configuring SCANport
device datalinks and datalink operation.
Provides information about addressing, information
transfer, and sample programs.
Provides information for using the block transfer
emulation instructions.
Explains how to interpret and correct problems with
your Serial Communications Module.
Provides environmental, electrical, and
communications specifications.
Related Documentation
The following documents contain additional information concerning
Allen–Bradley SLCt and PLC products. To obtain a copy, contact
your local Allen–Bradley office or distributor.
For Read This Document
Information about the DH–485 network
Additional information about setting up the DH–485 network on
your SLC 500
A complete listing of current Allen–Bradley documentation,
including ordering instructions. Also indicates whether the
documents are available on CD–ROM or in multi–languages.
A glossary of industrial automation terms and abbreviations Allen–Bradley Industrial Automation Glossary AG–7.1
Information about the MSG block Instruction Set Reference 6200–6.4.11
Information about configuring the PLC–5 channel 0 hardware Hardware Installation Manual 1785–6.6.1
Information about configuring the PLC–5 channel 0 driver Software Configuration and Maintenance 6200–6.4.6
1203–5.5 September 1995
Data Highway/Data Highway Plus/DH–485
Communication Protocol and Command Set
SLC 500 Modular Hardware Style
Allen–Bradley Publication Index SD499
Document
Number
1770–6.5.16
1747–NI002,
Series A
Preface P–3
Terms and Abbreviations
Conventions
The following terms and abbreviations are specific to this product.
For a complete listing of Allen–Bradley terminology, refer to the
Allen–Bradley Industrial Automation Glossary, Publication Number
ICCG–7.1. In this manual, we refer to the:
• Variable Frequency AC Drive (Bulletin 1305, 1336 FORCE,
1336 PLUS, 1395, 1557, SMC, SMC Plus, or SMC dialog) as
the drive or SCANport device.
• Programmable Logic Controller as the Programmable Controller
or PLC.
• Earth Ground as GND.
The following conventions are used throughout this manual:
• Bulleted lists such as this one provide information, not procedural
steps.
• Numbered lists provide sequential steps or hierarchical
information.
• Italic type is used for emphasis.
• Text in this font indicates words or phrases you should type.
Firmware Support
Safety Precautions
This manual supports communications module firmware versions
2.xx (the “xx” designator may vary). Features that work with
specific firmware versions will be denoted as such.
ATTENTION: Only personnel familiar with
SCANport devices and associated machinery should
!
!
plan or implement the installation, start–up,
configuration, and subsequent maintenance of the serial
communications module. Failure to comply may result
in personal injury and/or equipment damage.
ATTENTION: This module contains Electrostatic
Discharge (ESD) sensitive parts and assemblies. Static
control precautions are required when installing,
testing, servicing, or repairing this assembly.
Component damage may result if ESD control
procedures are not followed. If you are not familiar
with static control procedures, refer to Allen–Bradley
Publication 8000–4.5.2, Guarding Against Electrostatic
Damage or any other applicable ESD protection
handbook.
1203–5.5 September 1995
P–4
Serial Device Compatibility
Allen–Bradley Support
This Serial Communications Module is intended for use with devices
that communicate via the following protocols:
Hardware Standard Communications Protocol
RS–232 DF1
RS–422 DF1
RS–485 DF1
DH–485 DH–485
Allen–Bradley offers support services worldwide, with over 75
Sales/Support Offices, 512 authorized Distributors, and 260
authorized Systems Integrators located throughout the United States
alone, plus Allen–Bradley representatives in every major country in
the world.
Local Product Support
Contact your local Allen–Bradley representative for:
• sales and order support
• product technical training
• warranty support
• support service agreements
Technical Product Assistance
If you need to contact Allen–Bradley for technical assistance, please
review the information in the Troubleshooting chapter first. Then
call your local Allen–Bradley representative.
1203–5.5 September 1995
Product Description
Chapter
1
Chapter Objectives
Module Description
In this chapter, you will read about:
• Serial Communications Module features
• the location of configuration switches
The Serial Communications Module is an optional interface device
designed to provide a direct digital link between serial
communications devices and any device that uses SCANport. The
current list of products that use SCANport includes: 1305, 1336
PLUS, 1336 FORCE, 1394, SMP3 controllers, and 1557 medium
voltage drives. The module connects to these products via
SCANport.
The Serial Communications Module is available in both Open style
(Figure 1.1) and Enclosed (Figure 1.2) type configurations. The
Open style module mounts inside certain drives, depending on drive
size. The Enclosed module mounts independently and can be used
with any SCANport device. The following table provides more
information about the Open and Enclosed styles.
Designation Enclosure Power Supply Source Used With
Open Style Open PC Board Supplied by the drive 1336 PLUS*
Enclosed IP30 24V DC separately supplied or
120/240V AC separately supplied
* 7.5HP and higher sizes only, excluding the AQF and BRF catalog number drives
** 7.5HP and higher sizes with Standard Adapter board only
*** analog 1394 only
1336 FORCE**
1394***
1336 PLUS
1336 FORCE
Other SCANport products
1305
1394
SMP3
1203–5.5 September 1995
1–2 Product Description
SCANport Device Compatibility
The SCANport Serial Communications Module is compatible with
the following Allen–Bradley devices:
Device Firmware Revision
1336 PLUS All
1336 FORCE All
1305 Micro Drive 2.0 or newer
SMC
SMP
1394
1557
1203–5.5 September 1995
Figure 1.1
Open Style Communications Module
SW1.1 – SW1.2 = Protocol select
SW1.3 – SW1.8 = Adapter address
1–3Product Description
J4
1
2
3
SW1
4
5
6
7
8
SW2.1 – SW2.3 = Baud rate selection
SW2.4 = Parity enable
SW2.5 = Parity sense (even/odd)
SW2.6 = Stop bits
SW2.7 = Point-to-point/multi-drop
SW2.8 = CRC/BCC check
SW3.1 = Logic command/status and
reference/feedback
SW3.2 = Datalink A settings
SW3.3 = Datalink B settings
SW3.4 = Datalink C settings
SW3.5 = Datalink D settings
SW3.6 = Duplicate message detection
SW3.7, SW3.8 = Application timeout
default value
TX (Adapter transmit) when flashing
Serial Status
1. LED off: adapter power removed
2. LED flashing green: link OK, off–line
3. LED solid green: link OK, on–line
4. LED flashing red: was on–line, now off–line
5. LED solid red: fault
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
SW2
SW3
LED Indicators
Serial
Communications
Module
J2
9-Pin D-shell
SCANport Status
1. LED off: adapter power removed
2. LED flashing green: link OK, not connected
3. LED solid green: link OK, connected
4. LED flashing red: was connected, now not connected
5. LED solid red: fault
RX (Adapter receive)
when flashing
AB0394C
1203–5.5 September 1995
1–4 Product Description
Serial channel
D-shell connector
Figure 1.2
Enclosed Style Serial-to-SCANport Communications Module
SCANport
connector
Power
connection
Diagnostic
LEDs
TX
Serial Status
Switch SW3
– Logic command/status and
reference/feedback
– Datalink A, B, C, D settings
– Application timeout
Default value
– Duplicate message detection
O
RX
SCANport Status
1. LED off: adapter power removed
2. LED flashing green: link OK, not connected
3. LED solid green: link OK, connected
4. LED flashing red: was connected, now not connected
5. LED solid red: fault
1. LED off: adapter power removed
2. LED flashing green: link OK, off–line
3. LED solid green: link OK, on–line
4. LED flashing red: was on–line, now off–line
5. LED solid red: fault
Switch SW2
– Baud rate selection
– Parity enable
– Parity sense (even/odd)
– Stop bits
– Point-to-point/multi-drop
– CRC/BCC check
Switch SW1
– Protocol select
– Adapter address
SW1SW2SW3818181
O
1203–5.5 September 1995
Bottom View
AB0415B
Open Style
Comm
Module
1336
1305
Micro
Drive
PLUS
Figure 1.3
Typical Serial Communications/SCANport Device Interconnect
.
.
.
Serial port
SCANport
1–5Product Description
PLC
PC
SMP 3
SCANport
Serial
Communications
Module
Serial
Communications
Module
Other serial
devices
Serial communications link
SLC 5/03
SLC 5/03 CPU
AB0396C
1203–5.5 September 1995
1–6 Product Description
Configuration Switches
Figure 1.4
Configuration Switches
Rocker switch
Open
The Serial Communications Module contains three DIP Switches:
SW1, SW2, and SW3 (Figure 1.1 and Figure 1.2). Switches are set
ON or OFF as shown in Figure 1.4. For a detailed explanation of
switch configuration, refer to Chapter 2.
Side view of typical
switches
Side switch
Open
Open (Off)
Switch designation as
shown in this manual
Off
Open
Close (On)
Open
On
AB0397A
1203–5.5 September 1995
Installation
Chapter
2
Chapter Objectives
Setting Module Configuration Switches
In this chapter, you will learn how to:
• set the module configuration switches
• mount the Serial Communications Module
• connect the cables
• connect the SCANport link
• connect the power supply
Read this chapter completely before you attempt to install or
configure your Serial Communications Module. Double check all
connections and option selections before you apply power.
Important: Switch selections take effect only on power–up. If you
change selections after power is applied, cycle the
power to use the new settings.
When making configuration changes to the Serial Communications
Module, use the addressing conventions of the PLC/SLC processor
or serial device through which you are communicating. In all cases,
each serial device must have a unique address that the target
processor can recognize.
"
ATTENTION: When changing the switch settings,
use a blunt, pointed instrument such as a ball point pen.
!
!
!
This publication describes switches as being either on or off. If the
switch assembly has the word OPEN printed on it, the word OPEN
corresponds to OFF (0).
If a switch is shown as gray, then that switch does not affect the
function being covered.
Do not use a pencil because the lead (graphite) of the
pencil may damage the switch assembly.
ATTENTION: Failure to check connections and
switch settings for compatibility with your application
when configuring the communications module could
result in personal injury and/or equipment damage due
to unintended or undesirable operation.
ATTENTION: It is recommended that when a system
is configured for the first time, you should disconnect
the motor from the machine or process during the
initial testing.
1203–5.5 September 1995
2–2 Installation
Factory Switch Settings
The following table shows the switch settings that are set at the
factory:
Switch Setting Communication Mode
SW3–8 Off Default application timeout disabled
SW3–7 Off
SW3–6 Off Duplicate message detection disabled
SW3–5 Off Datalink D disabled
SW3–4 Off Datalink C disabled
SW3–3 Off Datalink B disabled
SW3–2 Off Datalink A disabled
SW3–1 Off
SW2–8 Off BCC checksum
SW2–7 Off Point–to–point
SW2–6 Off 1 stop bit
SW2–5 Off Even parity (if enabled)
SW2–4 Off Parity disabled
SW2–3 On 9600 baud
SW2–2 On
SW2–1 Off
Logic command/status and
reference/feedback disabled
SW1–8 Off Module address = 1
SW1–7 Off
SW1–6 Off
SW1–5 Off
SW1–4 Off
SW1–3 On
SW1–2 Off RS–232 (DF1 protocol)
SW1–1 Off
These switches can be visually represented as follows:
SW3
O
–
87 654321
SW2
O
–
876543 21
SW1
O
–
87 654321
1203–5.5 September 1995
2–3Installation
Switch SW1
Switch SW1 is used to select:
• serial communications mode (RS–232/RS–422/RS–485/DH–485)
• Serial Communications Module address
SW1
O
F
F
O
N
87 65 43 21
Communications
Module Address
Protocol
Selection
AB0398B
Use SW1–1 and SW1–2 to select the communications protocol you
are using:
Switch Value
(Decimal)
0
1
2
3
SW1 Protocol
O
–
87 654321
O
–
87 654321
O
–
87 654321
O
–
87 654321
RS–232 (DF1 protocol)
RS–422 (DF1 protocol)
RS–485 (DF1 protocol)
DH–485
1203–5.5 September 1995
2–4 Installation
ÁÁÁÁ
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Á
Use SW1–3, SW1–4, SW1–5, SW1–6, SW1–7, and SW1–8 to set
your address for the Serial Communications Module. The following
table provides the switch settings for selecting the serial device
addressing.
"
Module
Address
ÁÁ
(Decimal)
ÁÁ
0
1
ÁÁ
2
ÁÁ
3
4
ÁÁ
5
ÁÁ
6
ÁÁ
7
8
ÁÁ
9
ÁÁ
10
ÁÁ
11
12
ÁÁ
13
ÁÁ
14
ÁÁ
15
Note: If you are using the DH–485 communications mode, the
highest serial device address you can select is 31 (decimal).
DF1/DH–485 Address Selection
Module
Address
ÁÁÁ
(Octal)
0
ÁÁÁ
1
ÁÁÁ
2
ÁÁÁ
3
4
ÁÁÁ
5
ÁÁÁ
6
ÁÁÁ
7
10
ÁÁÁ
11
ÁÁÁ
12
ÁÁÁ
13
14
ÁÁÁ
15
ÁÁÁ
16
ÁÁÁ
17
SW1
ÁÁÁ
O
–
ÁÁÁ
87 654321
O
–
ÁÁÁ
876543 21
O
–
876543 21
O
ÁÁÁ
–
876543 21
O
–
ÁÁÁ
876543 21
O
–
ÁÁÁ
876543 21
O
–
876543 21
O
ÁÁÁ
–
876543 21
O
–
ÁÁÁ
876543 21
O
–
ÁÁÁ
876543 21
O
–
876543 21
O
ÁÁÁ
–
876543 21
O
–
ÁÁÁ
876543 21
O
–
ÁÁÁ
876543 21
O
–
876543 21
O
ÁÁÁ
–
876543 21
O
F
F
Á
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
O
N
Module
Address
ÁÁ
(Decimal)
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Module
Address
ÁÁÁ
(Octal)
20
ÁÁÁ
21
ÁÁÁ
22
ÁÁÁ
23
24
ÁÁÁ
25
ÁÁÁ
26
ÁÁÁ
27
30
ÁÁÁ
31
ÁÁÁ
32
ÁÁÁ
33
34
ÁÁÁ
35
ÁÁÁ
36
ÁÁÁ
37
ÁÁÁ
O
–
ÁÁÁ
876543 21
O
–
ÁÁÁ
876543 21
O
–
876543 21
O
ÁÁÁ
–
876543 21
O
–
ÁÁÁ
876543 21
O
–
ÁÁÁ
876543 21
O
–
876543 21
O
ÁÁÁ
–
876543 21
O
–
ÁÁÁ
876543 21
O
–
ÁÁÁ
876543 21
O
–
876543 21
O
ÁÁÁ
–
876543 21
O
–
ÁÁÁ
876543 21
O
–
ÁÁÁ
876543 21
O
–
876543 21
O
ÁÁÁ
–
876543 21
SW1
1203–5.5 September 1995
DF1 Address Selection
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
2–5Installation
Module
ÁÁ
Address
(Decimal)
ÁÁ
32
33
ÁÁ
34
ÁÁ
35
ÁÁ
36
37
ÁÁ
38
ÁÁ
39
ÁÁ
40
41
ÁÁ
42
ÁÁ
43
ÁÁ
44
45
ÁÁ
46
ÁÁ
47
ÁÁ
Module
ÁÁÁ
Address
(Octal)
ÁÁÁ
40
41
ÁÁÁ
42
ÁÁÁ
43
ÁÁÁ
44
45
ÁÁÁ
46
ÁÁÁ
47
ÁÁÁ
50
51
ÁÁÁ
52
ÁÁÁ
53
ÁÁÁ
54
55
ÁÁÁ
56
ÁÁÁ
57
ÁÁÁ
ÁÁÁ
SW1
ÁÁÁ
O
–
876543 21
O
ÁÁÁ
–
876543 21
O
–
ÁÁÁ
876543 21
O
–
876543 21
ÁÁÁ
O
–
876543 21
O
ÁÁÁ
–
876543 21
O
–
ÁÁÁ
876543 21
O
–
ÁÁÁ
876543 21
O
–
876543 21
O
ÁÁÁ
–
876543 21
O
–
ÁÁÁ
876543 21
O
–
ÁÁÁ
876543 21
O
–
876543 21
O
ÁÁÁ
–
876543 21
O
–
ÁÁÁ
876543 21
O
–
ÁÁÁ
876543 21
Á
F
Á
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁ
Address
(Decimal)
ÁÁ
Module
O
O
N
F
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
Module
ÁÁÁ
Address
(Octal)
ÁÁÁ
60
61
ÁÁÁ
62
ÁÁÁ
63
ÁÁÁ
64
65
ÁÁÁ
66
ÁÁÁ
67
ÁÁÁ
70
71
ÁÁÁ
72
ÁÁÁ
73
ÁÁÁ
74
75
ÁÁÁ
76
ÁÁÁ
77
ÁÁÁ
ÁÁÁ
SW1
ÁÁÁ
O
–
876543 21
O
ÁÁÁ
–
876543 21
O
–
ÁÁÁ
876543 21
O
–
876543 21
ÁÁÁ
O
–
876543 21
O
ÁÁÁ
–
876543 21
O
–
ÁÁÁ
876543 21
O
–
ÁÁÁ
876543 21
O
–
876543 21
O
ÁÁÁ
–
876543 21
O
–
ÁÁÁ
876543 21
O
–
ÁÁÁ
876543 21
O
–
876543 21
O
ÁÁÁ
–
876543 21
O
–
ÁÁÁ
876543 21
O
–
ÁÁÁ
876543 21
1203–5.5 September 1995
2–6 Installation
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Á
Switch SW2
Switch SW2 is used to select:
• baud rate
• parity
• number of stop bits
• point–to–point or multi–drop
• checksum mode (CRC or BCC)
SW2
O
F
F
O
N
876543 21
Parity
setting
Baud rate
selection
Stop bits
Point-to-point/multi-drop
Checksum mode
AB0399A
Use SW2–3, SW2–2, and SW2–1 to select the baud rate:
Switch Value
(Decimal)
0
ÁÁÁ
1
ÁÁÁ
2
ÁÁÁ
3
4
ÁÁÁ
5
ÁÁÁ
6
ÁÁÁ
7
SW2
O
ÁÁÁ
–
87 654321
O
–
ÁÁÁ
87 654321
O
–
ÁÁÁ
87 654321
O
–
87 654321
O
ÁÁÁ
–
87 654321
O
–
ÁÁÁ
87 654321
O
–
ÁÁÁ
87 654321
O
–
87 654321
Baud Rate
110
ÁÁÁÁ
300
ÁÁÁÁ
600
ÁÁÁÁ
1200
2400
ÁÁÁÁ
4800
ÁÁÁÁ
9600
ÁÁÁÁ
19200
1203–5.5 September 1995
"
Note: For DH–485, 1200, 2400, 9600, and 19200 are the allowed
baud rates. Selecting any other baud rate will cause the module to
indicate a fault. The module cannot operate in this state.
2–7Installation
"
Note: If you are using the DH–485 communications mode, setting
switches SW2–4, SW2–5, SW2–6. SW2–7, and SW2–8 have no
effect because this information is selected within the software.
Use SW2–5 and SW2–4 to set the parity:
SW2 Function
O
–
87 654321
O
–
87 654321
O
–
87 654321
Parity disabled
Even parity
Odd parity
Use SW2–6 to choose between 1 stop bit and 2 stop bits:
SW2 Function
O
–
87 654321
O
–
87 654321
1 stop bit
2 stop bits
Use SW2–7 to choose between point–to–point and multi–drop:
SW2 Function
O
–
87 654321
O
–
87 654321
Point–to–point
Multi–drop
Use SW2–8 to choose between BCC checksum mode and CRC
checksum mode:
SW2 Function
O
–
87 654321
O
–
87 654321
BCC Checksum
CRC Checksum
1203–5.5 September 1995
2–8 Installation
Switch SW3
Switch SW3 is used to select:
• logic command/status and reference/feedback
• datalinks (up to four datalinks)
• duplicate message detection
• application timeout default value
SW3
O
F
F
O
N
8765 43 21
detection
Datalink message
enables
Logic command/
status and reference/
feedback
AB0400B
Application timeout
default values
Duplicate message
Use SW3–1 to enable and disable the logic command/status and
reference/feedback messaging:
SW3 Function
O
–
87 654321
O
–
87 654321
Disable logic command/status and reference/feedback messaging.
Enable logic command/status and reference/feedback messaging.
Use SW3–2 to enable and disable Datalink A messaging:
SW3 Function
O
–
87 654321
O
–
87 654321
Disable Datalink A messaging.
Enable Datalink A messaging.
1203–5.5 September 1995
Use SW3–3 to enable and disable Datalink B messaging:
SW3 Function
O
–
87 654321
O
–
87 654321
Disable Datalink B messaging.
Enable Datalink B messaging.
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