AB Quality 1769-L31 CompactLogix User manual

Publication 1769-IN069A-EN-P - March 2004
Installation Instructions
1769-L31 CompactLogix™ Controller
(Catalog Numbers 1769-L31)
Inside...
Before You Begin .................................................................................... 4
How to Handle CompactLogix Components ........................................... 5
Make Sure that You Have All the Components...................................... 5
System Planning ..................................................................................... 6
Installation Steps.................................................................................... 6
Connect the 1769-BA Battery ................................................................. 7
Install a 1784-CF64 Industrial CompactFlash Card (optional) ................ 8
Assemble the System ............................................................................. 9
Mount the System ................................................................................ 10
Make RS-232 Connections to the Controller........................................ 13
Install the Appropriate EDS Files.......................................................... 17
Load the Controller Firmware ............................................................... 18
Select the Controller’s Operating Mode ............................................... 20
Controller LEDs ..................................................................................... 21
Specifications ....................................................................................... 23
Certifications......................................................................................... 24
Additional Information.......................................................................... 25

21769-L31 CompactLogix™ Controller
Publication 1769-IN069A-EN-P - March 2004
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 available from your local Rockwell Automation sales office or online at
http://www.ab.com/manuals/gi) 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 Rockwell Automation, Inc. 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, Rockwell Automation, Inc. cannot
assume responsibility or liability for actual use based on the examples and diagrams.
No patent liability is assumed by Rockwell Automation, Inc. 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 Rockwell
Automation, Inc. is prohibited.
Throughout this manual we use notes to make you aware of safety considerations.
WARNING Identifies information about practices or circumstances that can cause an explosion in a
hazardous environment, which may lead to personal injury or death, property damage,
or economic loss.
IMPORTANT Identifies information that is critical for successful application and understanding of the
product.
ATTENTION Identifies information about practices or circumstances that can lead to personal injury
or death, property damage, or economic loss. Attentions help you:
•identify a hazard
•avoid a hazard
•recognize the consequence
SHOCK HAZARD Labels may be located on or inside the drive to alert people that dangerous voltage may
be present.
SHOCK HAZARD Labels may be located on or inside the drive to alert people that surfaces may be
dangerous temperatures.

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Publication 1769-IN069A-EN-P - March 2004
Environment and Enclosure Information
ATTENTION Environment and Enclosure
This equipment is intended for use in a Pollution Degree 2 industrial environment, in
overvoltage Category II applications (as defined in IEC publication 60664-1), at altitudes
up to 2000 meters without derating.
This equipment is considered Group 1, Class A industrial equipment according to
IEC/CISPR Publication 11. Without appropriate precautions, there may be potential
difficulties ensuring electromagnetic compatibility in other environments due to
conducted as well as radiated disturbance.
This equipment is supplied as "open type" equipment. It must be mounted within an
enclosure that is suitably designed for those specific environmental conditions that will
be present and appropriately designed to prevent personal injury resulting from
accessibility to live parts. The interior of the enclosure must be accessible only by the use
of a tool. Subsequent sections of this publication may contain additional information
regarding specific enclosure type ratings that are required to comply with certain product
safety certifications.
See NEMA Standards publication 250 and IEC publication 60529, as applicable, for
explanations of the degrees of protection provided by different types of enclosure. Also,
see the appropriate sections in this publication, as well as the Allen-Bradley publication
1770-4.1 ("Industrial Automation Wiring and Grounding Guidelines"), for additional
installation requirements pertaining to this equipment.

41769-L31 CompactLogix™ Controller
Publication 1769-IN069A-EN-P - March 2004
North American Hazardous Location Approval
Before You Begin
Use this document as a guide for installing and powering-up your 1769-L31
CompactLogix controller. You should already be familiar with the system
components.
You must FLASH upgrade the firmware on your CompactLogix controller before
you can use it. The controller ships with firmware revision 1.x but must be
upgraded to match the version of RSLogix 5000 that you are using (e.g. if you are
using RSLogix 5000 V13, you must upgrade your CompactLogix controller firmware
to revision 13.x before using it. For more information on upgrading your
controller’s firmware, see page 18.
The following information applies when operating this
equipment in hazardous locations:
Informations sur l’utilisation de cet équipement en
environnements dangereux :
Products marked “CL I, DIV 2, GP A, B, C, D” are suitable for
use in Class I Division 2 Groups A, B, C, D, Hazardous
Locations and nonhazardous locations only. Each product is
supplied with markings on the rating nameplate indicating
the hazardous location temperature code. When combining
products within a system, the most adverse temperature
code (lowest “T” number) may be used to help determine the
overall temperature code of the system. Combinations of
equipment in your system are subject to investigation by the
local Authority Having Jurisdiction at the time of installation.
Les produits marqués "CL I, DIV 2, GP A, B, C, D" ne
conviennent qu’à une utilisation en environnements de
Classe I Division 2 Groupes A, B, C, D dangereux et non
dangereux. Chaque produit est livré avec des marquages sur
sa plaque d’identification qui indiquent le code de
température pour les environnements dangereux. Lorsque
plusieurs produits sont combinés dans un système, le code
de température le plus défavorable (code de température le
plus faible) peut être utilisé pour déterminer le code de
température global du système. Les combinaisons
d’équipements dans le système sont sujettes à inspection
par les autorités locales qualifiées au moment de
l’installation.
WARNING EXPLOSION HAZARD
•Do not disconnect equipment
unless power has been
removed or the area is known
to be nonhazardous.
•Do not disconnect connections
to this equipment unless power
has been removed or the area is
known to be nonhazardous.
Secure any external
connections that mate to this
equipment by using screws,
sliding latches, threaded
connectors, or other means
provided with this product.
•Substitution of components
may impair suitability for Class
I, Division 2.
•If this product contains
batteries, they must only be
changed in an area known to be
nonhazardous.
AVERTISSEMENT RISQUE D’EXPLOSION
•Couper le courant ou s’assurer
que l’environnement est classé
non dangereux avant de
débrancher l'équipement.
•Couper le courant ou s'assurer
que l’environnement est classé
non dangereux avant de
débrancher les connecteurs.
Fixer tous les connecteurs
externes reliés à cet
équipement à l'aide de vis,
loquets coulissants,
connecteurs filetés ou autres
moyens fournis avec ce produit.
•La substitution de composants
peut rendre cet équipement
inadapté à une utilisation en
environnement de Classe I,
Division 2.
•S’assurer que l’environnement
est classé non dangereux avant
de changer les piles.

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Publication 1769-IN069A-EN-P - March 2004
How to Handle CompactLogix Components
Make Sure that You Have All the Components
These components ship with the controller:
You may also use these components with the controller:
ATTENTION Preventing Electrostatic Discharge
This equipment is sensitive to electrostatic discharge, which
can cause internal damage and affect normal operation.
Follow these guidelines when you handle this equipment:
•Touch a grounded object to discharge potential static.
•Wear an approved grounding wriststrap.
•Do not touch connectors or pins on component boards.
•Do not touch circuit components inside the equipment.
•If available, use a static-safe workstation.
•When not in use, store the equipment in appropriate
static-safe packaging.
Component: Description:
1769-BA battery
Important: The 1769-BA battery is the only battery you can use
with the 1769-L31 controller.
1747-KY controller key
If you want to: Then use this component:
connect a device to the RS-232 port 1756-CP3 or 1747-CP3 serial cable
Add nonvolatile memory 1784-CF64 Industrial CompactFlash card

61769-L31 CompactLogix™ Controller
Publication 1769-IN069A-EN-P - March 2004
System Planning
Consider the following when planning your CompactLogix system:
•The CompactLogix controller is always the left-most module in the system.
•The controller must be located within four modules of the system power
supply. Some I/O module’s may be located up to 8 modules away from the
power supply. See the documentation for your 1769 I/O modules for details.
•The 1769-L31 controller supports as many as 16 I/O modules in a maximum
of 3 I/O banks with 2 expansion cables.
•Each I/O bank requires its own power supply.
•Only one controller can be used in a CompactLogix system.
•A 1769-ECR (right end cap) or 1769-ECL (left end cap) is required to
terminate the end of the communication bus.
Installation Steps
✓Installation Step: See Page:
❏1. Connect the battery 7
❏2. Install the 1784-CF64 CompactFlash card (optional) 8
❏3. Assemble the system 9
❏4. Mount the system 10
❏5. Make serial connections 13
❏6. Install the appropriate EDS files 17
❏7. Load controller firmware 18

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Connect the 1769-BA Battery
The controller is shipped with the 1769-BA battery packed separately. To connect
the battery, follow the procedure shown below.
1. Slide the battery door forward.
2. Insert the battery into the battery port. Insert the battery connector into the
connector port. The connector is keyed to engage in the correct polarity.
3. Slide the battery door back until it clicks into position.
ATTENTION The 1769-BA battery is the only battery you can use with the
1769-L31 controller. The 1747-BA battery is not compatible with
the 1769-L31 controller and may cause problems.
IMPORTANT Do not remove the plastic insulation covering the battery. The
insulation is necessary to protect the battery contacts.
WARNING When you connect or disconnect the
battery an electrical arc can occur. This
could cause an explosion in hazardous
location installations. Be sure that power is
removed or the area is nonhazardous
before proceeding.
For Safety information on the handling of
lithium batteries, including handling and
disposal of leaking batteries, see
Guidelines for Handling Lithium Batteries,
publication AG 5-4.

81769-L31 CompactLogix™ Controller
Publication 1769-IN069A-EN-P - March 2004
Install a 1784-CF64 Industrial CompactFlash Card (optional)
A 1784-CF64 Industrial CompactFlash card provides nonvolatile memory for a
CompactLogix controller. This is an optional feature and is not required to operate
the controller. Install the card as follows:
1. Push the locking tab to the right and insert the 1784-CF64 Industrial
CompactFlash card into the socket on the front of the controller.
The label of the CompactFlash card faces towards the left. Match the
orientation arrow on the card with the arrow on the front of the controller.
The CompactFlash card support removal and
insertion under power.
To remove the CompactFlash card, push the locking tab away from the
CompactFlash card and pull the CompactFlash card from the socket.
ATTENTION Do not remove the CompactFlash card while the controller is
reading from or writing to the card, as indicated by a flashing
green CF LED. This could corrupt the data on the card or in the
controller, as well as corrupt the latest firmware in the controller.
WARNING When you insert or remove the card
while backplane power is on, an
electrical arc can occur. This could
cause an explosion in hazardous
location installations.
Be sure that power is removed or the
area is nonhazardous before
proceeding. Repeated electrical arcing
causes excessive wear to contacts on
both the module and its mating
connector. Worn contacts may create
electrical resistance that can affect
module operation.

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Assemble the System
The controller can be attached to an adjacent I/O module or power supply before
or after mounting. For mounting instructions, see Panel mounting on page 12 or
DIN rail mounting on page 12.
The following procedure shows you how to install the controller in a
CompactLogix system.
1. Disconnect line power.
2. Check that the lever of the adjacent module (A) is in the unlocked (fully
right) position.
3. Use the upper and lower tongue-and-groove slots (B) to secure the modules
together.
4. Move the module back along the tongue-and-groove slots until the bus
connectors line up with each other.
WARNING The CompactLogix controller is not designed for removal and
insertion under power.
If you insert or remove the module while backplane power is
on, an electrical arc can occur. This could cause an explosion
in hazardous location installations.
Be sure that power is removed or the area is nonhazardous
before proceeding. Repeated electrical arcing causes excessive
wear to contacts on both the module and its mating connector.
Worn contacts may create electrical resistance that can affect
module operation.
F
E
D
C
B
B
A

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5. Use your fingers or a small screwdriver to push the module’s bus lever back
slightly to clear the positioning tab (C).
6. Move the module’s bus lever fully to the left (D) until it clicks. Ensure it is
locked firmly in place.
7. Attach an end cap terminator (E) to the last module in the system by using
the tongue-and-groove slots as before.
8. Lock the end cap bus terminator (F).
Mount the System
ATTENTION When attaching the controller, power supply, and I/O
modules, make sure the bus connectors are securely locked
together to ensure proper electrical connection.
WARNING If you connect or disconnect wiring while the field-side power
is on, an electrical arc can occur. This could cause an
explosion in hazardous location installations. Be sure that
power is removed or the area is nonhazardous before
proceeding.
ATTENTION During panel or DIN rail mounting of all devices, be sure that
all debris (metal chips, wire strands, etc.) is kept from falling
into the controller. Debris that falls into the controller could
cause damage while the controller is energized.

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Minimum spacing
Maintain spacing from enclosure
walls, wireways, adjacent
equipment, etc. Allow 50 mm (2 in.)
of space on all sides, as shown. This
provides ventilation and electrical
isolation.
System dimensions
TIP Compact I/O expansion cables have the same dimensions as
the end caps. Expansion cables can be used on either the right
or left end. A 1769-ECR (right end cap) or 1769-ECL (left end
cap) terminates the end of the communication bus.
Bottom
Side Side
Top
CompactLogix
Controller
Power Supply
Compact I/O
Compact I/O
End Cap
50 mm
50 mm
50 mm
50 mm
52.5mm
(2.07in)
118mm
(4.65in)
35mm
(1.38in)
35mm
(1.38in)
35mm
(1.38in)
132mm
(5.20in)
15mm
(.59in)
52.5mm
(2.06in)
67.5mm
(2.68in)
70mm
(2.76in)
35mm
(1.38in)
35mm
(1.38in)
NOTE: All dimensions are in mm (in.).
Hole spacing tolerance: ±0.4 mm (0.016 in.)

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Panel mounting
Mount the controller to a panel using two screws per module. Use M4 or #8
panhead screws. Mounting screws are required on every module.
The following procedure allows you to use the assembled modules as a template
for drilling holes in the panel. Due to module mounting hole tolerance, it is
important to follow these procedures:
1. On a clean work surface, assemble no more than three modules.
2. Using the assembled modules as a template, carefully mark the center of all
module-mounting holes on the panel.
3. Return the assembled modules to the clean work surface, including any
previously mounted modules.
4. Drill and tap the mounting holes for the recommended M4 or #8 screw.
5. Place the modules back on the panel and check for proper hole alignment.
6. Attach the modules to the panel using the mounting screws.
7. Repeat steps 1 to 6 for any remaining modules.
DIN rail mounting
The controller can be mounted using the following DIN rails:
•35 x 7.5 mm (EN 50 022 - 35 x 7.5)
•35 x 15 mm (EN 50 022 - 35 x 15)
Before mounting the controller on a DIN rail, close the DIN rail latches. Press the
DIN rail mounting area of the controller against the DIN rail. The latches will
momentarily open and lock into place.
TIP If mounting more modules, mount only the last one of
this group and put the others aside. This reduces
remounting time during drilling and tapping of the next
group.

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Grounding considerations
This product is intended to be mounted to a well-grounded mounting surface such
as a metal panel. Additional grounding connections from the controller’s mounting
tabs or DIN rail (if used), are not required unless the mounting surface cannot be
grounded. Refer to Industrial Automation Wiring and Grounding Guidelines,
Allen-Bradley publication 1770-4.1, for additional information.
Make RS-232 Connections to the Controller
Connect the 9-pin female end of the serial cable to the serial
port of the controller.
ATTENTION This product is grounded through the DIN rail to chassis ground.
Use zinc plated yellow-chromate steel DIN rail to assure proper
grounding. The use of other DIN rail materials (e.g. aluminum,
plastic, etc.) that can corrode, oxidize, or are poor conductors,
can result in improper or intermittent grounding.
WARNING If you connect or disconnect the serial cable
with power applied to this module or the
serial device on the other end of the cable,
an electrical arc can occur. This could cause
an explosion in hazardous location
installations.
Be sure that power is removed or the area is
nonhazardous before proceeding.

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To connect to the serial port:
1. Determine whether you need an optical isolator.
Channel 0 is fully isolated and does not need a separate isolation device.
Channel 1 is non-isolated. If you connect channel 1 to a device outside of
the system’s enclosure, consider installing an isolator between the controller
and device.
One possible isolator is the 1761-NET-AIC interface converter.
port 1: DB-9 RS-232, DTE
baud rate selector switch
port 2: mini-DIN 8 RS-232
dc power source selector switch
terminals for external 24V
dc power supply

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2. Select the appropriate cable.
Are you using
an isolator?
Use this cable:
no The 1756-CP3 cable attaches the controller directly to the controller.
If you make your own cable, it must be shielded and the shields must be tied to the metal
shell (that surrounds the pins) on both ends of the cable.
You can also use a 1747-CP3 cable (from the SLC product family). This cable has a taller
right-angle connector housing than the 1756-CP3 cable.
yes The 1761-CBL-AP00 cable (right-angle connector to controller) or the 1761-CBL-PM02 cable
(straight connector to the controller) attaches the controller to port 2 on the 1761-NET-AIC
isolator. The mini-DIN connector is not commercially available, so you cannot make
this cable.
2 RDX
3 TXD
4 DTR
COMMON
6 DSR
7 RTS
8 CTS
9
1 CD
2 RDX
3 TXD
4 DTR
COMMON
6 DSR
7 RTS
8 CTS
9
1 CD
DB-9 right-angle or straight cable end 8-pin, mini-DIN cable end
Pin: DB-9 end: Mini-DIN end:
1DCD DCD
2RxD RxD
3TxD TxD
4DTR DTR
5 ground ground
6DSR DSR
7RTS RTS
8CTS CTS
9na na
12
34
5
678
6
7
8
9
1
2
3
4
5

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Default serial configuration
Channel 0 and Channel 1 (both serial ports) have the following default
communication configuration.
Only Channel 0 has a default communication push button (see page 17).
Parameter Default
Protocol DF1 full-duplex
Baud Rate 19.2 Kbit/s
Parity none
Station Address 0
Control Lines no handshaking
Error Detection BCC
Embedded Responses auto detect
Duplicate Packet (Message) Detect enabled
ACK Timeout 50 (x 20 ms)
NAK Receive Limit 3 retries
ENQ Transmit Limit 3 retries
Data Bits 8
Stop Bits 1

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Using the channel 0 default communication push button
The Channel 0 Default Communication Push Button is
located on the front of the controller in the lower right
corner as shown in the illustration below.
Use the Channel 0 Default Communication Push Button
to change from the user-defined communication
configuration to the default communications mode.
The Channel 0 Default Communications (DCH0) LED
turns on (green, steady) to show when the default
communication configuration is active.
Install the Appropriate EDS Files
If you have RSLinx software, version 2.42 or greater, the most current EDS files
were installed with the software. If you are using an older version of RSLinx
software, you might need to install EDS files. You need EDS files for:
•1769-L31 controller
•1769 CompactBus
•1769 local adapter
All of these EDS files, except for the 1769 CompactBus file, are updated for each
firmware revision. There is also a revision 1 of the controller EDS file that you need
for new controllers. Each controller ships with revision 1 firmware. In order to
update the firmware, you must have this revision 1 EDS file installed:
•0001000E00410100.eds for the controller
TIP •The Default Communication Push Button is recessed.
• Before pressing the Default Communication Push Button, be
sure to note the present communication configuration for
Channel 0. Pushing the Default Communication Push Button
resets all configured parameters back to their default settings.
To return the channel to its user-configured parameters, you
must enter them manually while online with the controller or
download them as part of an RSLogix 5000 Project file. To
accomplish this online using RSLogix 5000, enter the Controller
Properties screen and use the Serial Port, System Protocol and
User Protocol tabs.

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The EDS files are available on the CD for RSLogix 5000 Enterprise Series software,
version 13. The files are also available at:
http://www.ab.com/networks/eds.
Load the Controller Firmware
The controller ships without working firmware. You must download the current
firmware before you can use the controller. To load firmware, you can use:
•ControlFlash utility that ships with RSLogix 5000 programming software.
•AutoFlash that launches through RSLogix 5000 software when you try to
open or create a project and the controller does not have the current
firmware.
•a 1784-CF64 CompactFlash card with valid memory already loaded.
The firmware is available with RSLogix 5000 software or you can download it from
the support website:
1. Go to http://support.rockwellautomation.com
2. In the left column (frame), select Firmware Updates under Technical Support
3. Select the firmware revision.
The download process will require you to enter the serial number of your
RSLogix 5000 programming software.
If you load (flash) controller firmware via the ControlFlash or AutoFlash utilities,
you need a serial connection to the controller.
Using ControlFlash to load firmware
You can use ControlFlash to load firmware through a serial connection.
1. Make sure the appropriate network connection is made before starting.
2. Start the ControlFlash utility. Click Next when the Welcome screen appears.
3. Select the catalog number of the controller and click Next.
4. Expand the network until you see the controller. If the required network is
not shown, first configure a driver for the network in RSLinx software.
5. Select the controller and click OK

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6. Select the revision level to which you want to update the controller and click
Next.
7. To start the update of the controller, click Finish and then click Yes.
8. After the controller is updated, the status box displays Update complete.
Click OK.
9. To close ControlFlash software, click Cancel and then click Yes.
Using AutoFlash to load firmware
You can use AutoFlash to load firmware through a serial connection.
1. Make sure the appropriate network connection is made before starting.
2. Use RSLogix 5000 programming software to attempt to create a controller
project. This automatically launches AutoFlash.
3. Select the catalog number of the controller and click Next.
4. Expand the network until you see the controller. If the required network is
not shown, first configure a driver for the network in RSLinx software.
5. Select the controller and click OK
6. Select the revision level to which you want to update the controller and click
Next.
7. To start the update of the controller, click Finish and then click Yes.
8. After the controller is updated, the status box displays Update complete.
Click OK.
9. To close AutoFlash software, click Cancel and then click Yes.
Using a CompactFlash card to load firmware
If you have an existing controller that is already configured and has firmware
loaded, you can store the current controller user program and firmware on
CompactFlash and use that card to update other controllers.
1. Use RSLogix 5000 software to store the controller user program and
firmware of a currently configured controller to the CompactFlash card.
Access the Nonvolatile Memory tab of the Controller Properties dialog. Make
sure to select Load Image On Powerup when you save to the card.

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2. Remove the card and insert it into a controller that you want to have the
same firmware and controller user program.
3. When you power up the second controller, the image stored on the
CompactFlash card is loaded into the controller.
Select the Controller’s Operating Mode
Use the keyswitch on the front panel of the controller to determine the controller’s
operating mode.
Keyswitch
Position
Description
RUN •Upload projects.
•Run the program and enable outputs.
•You cannot create or delete tasks, programs, or routines. You cannot create or delete tags
or edit online while the keyswitch is in the RUN position.
•You cannot change the mode using the programming software while the keyswitch is in
the RUN position.
PROG •Disable outputs.
•Upload/download projects.
•Create, modify, and delete tasks, programs, or routines.
•The controller does not execute (scan) tasks while the keyswitch is in the PROG position.
•You cannot change the mode through the programming software while the keyswitch is in
the PROG position.
REM •Upload/download projects.
•Change between Remote Program, Remote Test, and Remote Run modes through the
programming software.
Remote Run •The controller executes (scans) tasks.
•Enable outputs.
•Edit online.
Remote Program •Disable outputs.
•Create, modify, and delete tasks, programs or routines.
•Download projects.
•Edit online.
•The controller does not execute (scan) tasks.
Remote Test •Execute tasks with outputs disabled.
•Edit online.