ProSoft Technology ILX34-MBS485 User Manual

ILX34-MBS

User Manual

Modbus Serial Module for
CompactLogix L1 and Point I/O
Adapters

February 18, 2015

USER MANUAL

User Manual

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Copyright © 2015 ProSoft Technology, Inc., All rights reserved.

ILX34-MBS User Manual
February 18, 2015

ProSoft Technology® Product Documentation

In an effort to conserve paper, ProSoft Technology no longer includes printed manuals with our product
shipments. User Manuals, Datasheets, Sample Ladder Files, and Configuration Files are provided on the
enclosed DVD in Adobe® Acrobat Reader file format (.PDFs). These product documentation files may also be
freely downloaded from our web site: www.prosoft-technology.com

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ILX34-MBS User Manual

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ILX34-MBS User Manual

Contents

Your Feedback Please ........................................................................................................................ 3

How to Contact Us .............................................................................................................................. 3

ProSoft Technology® Product Documentation .................................................................................... 3

1 Start Here 7

1.1 ILX34-MBS Overview ................................................................................................ 7

1.2 Package Content ....................................................................................................... 7

1.3 System Requirements ............................................................................................... 7

2 Installing the Adapter 9

2.1 Installing the Mounting Base/Wiring Base Assembly ................................................ 9

2.2 Installing an I/O Module........................................................................................... 10

2.3 Installing the Removable Terminal Block ................................................................ 11

2.4 Removing a Mounting Base .................................................................................... 11

2.5 Connecting Power ................................................................................................... 12

2.5.1 CompactLogix L16/L18 Processor Power Connectivity .......................................... 12

2.5.2 Module Terminations ............................................................................................... 13

3 Configuration 15

3.1 1734-AENT and 1734-AENTR ................................................................................ 15

3.2 1734-ACNR ............................................................................................................. 15

3.3 1769-L16ER-BB1B, L18ER-BB1B, and L18ERM-BB1B ......................................... 15

3.4 Sample Configuration Procedure ............................................................................ 15

3.4.1 Create Module I/O Configuration ............................................................................ 18

3.4.2 Configure Controller Tags ....................................................................................... 25

3.5 Downloading the Sample Program to the Processor .............................................. 27

3.6 Master Command Structure .................................................................................... 28

3.7 Data Handling .......................................................................................................... 29

3.8 Module Status ......................................................................................................... 30

4 General Features & Specifications 31

4.1 General Specifications – Modbus Master/Slave .................................................... 31

4.2 Hardware Specifications.......................................................................................... 32

4.3 Agency Approvals ................................................................................................... 32

5 Support, Service & Warranty 33

Contacting Technical Support ........................................................................................................... 33

5.1 Warranty Information ............................................................................................... 34

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Start Here

Qty.

Part Name

Part Number

Part Description

1

ILX34-MBS Adapter

ILX34-MBS

POINT I/O Adapter

1 Start Here

This Quick Start Guide will help you quickly set up and configure the ILX34-MBS
module. You should be somewhat familiar with the following:

 Rockwell Automation® Studio 5000 Logix Designer v21 (for

CompactLogix L1 processors) or Rockwell Automation® RSLogix™ 5000

version 16 or greater (for 1734 Point I/O adapters).

 Hardware Installation and Wiring

1.1 ILX34-MBS Overview

The ILX34-MBS modules are the ideal solution for the many distributed I/O
applications where Modbus connectivity can be integrated into an Allen Bradley
System. The ILX34-MBSxxx comes with an Add-On profile and is configured
using Rockwell Automation Studio 5000 (CompactLogix L1) and RSLogix 5000
(Point I/O Controllers). The modules work in both the 1734 Point I/O adapters
and the CompactLogix L1 processors.

1.2 Package Content

The following components are included with your ILX34-MBS adapter, and are all
required for installation and configuration.

Important: Before beginning the installation, please verify that all of the following items are
present.

If any of these components are missing, please contact ProSoft Technology
Support for replacement parts.

1.3 System Requirements

The ILX34-MBS requires the following minimum hardware and software
components:

 Rockwell Automation® processor, with compatible power supply

o CompactLogix™ L1 Processors or 1734- Point I/O adapters,

 Rockwell Automation RSLogix 5000/Studio 5000 programming software
 Rockwell Automation RSLinx communication software version 2.54 or higher
 Pentium® II 450 MHz minimum. Pentium III 733 MHz (or better)

recommended

 Supported operating systems:

o Microsoft Windows
o Microsoft Windows Vista

®

7

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Start Here

o Microsoft Windows XP Professional with Service Pack 1 or 2
o Microsoft Windows 2000 Professional with Service Pack 1, 2, or 3
o Microsoft Windows Server 2003

 128 Mbytes of RAM minimum, 256 Mbytes of RAM recommended
 Microsoft Windows Explorer version 7
 256-color VGA graphics adapter, 800 x 600 minimum resolution (True Color

1024  768 recommended)

 DVD drive

Note: The Hardware and Operating System requirements in this list are the minimum
recommended to install and run software provided by ProSoft Technology. Other third party
applications may have different minimum requirements. Refer to the documentation for any third
party applications for system requirements.

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Installing the Adapter

2 Installing the Adapter

2.1 Installing the Mounting Base/Wiring Base Assembly

The wiring base assembly consists of a mounting base and a removable terminal
block. You can install the assembly or just the mounting base. Perform the
following to install the base/wiring base assembly:

1. Position the mounting base/wiring base assembly vertically above the
installed units (adapter, power supply, or existing module).

2. Slide the mounting base down allowing the interlocking side pieces to
engage the adjacent module or adapter.

3. Press firmly to seat the mounting base on the DIN Rail. The mounting
base snaps into place.

4. To remove the mounting base from the DIN rail, remove any installed
module (and any module immediately to the right) and use a small blade
screwdriver to rotate the DIN rail locking screw to a vertical position. This
releases the locking mechanism. Lift straight up to remove the mounting
base.

5. Repeat this procedure for the next mounting base assembly.

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Installing the Adapter

2.2 Installing an I/O Module

Make sure that the mounting base is correctly keyed before installing the module
into the mounting base. In addition, make sure the mounting base locking screw
is positioned horizontal referenced to the base.

Warning: When 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 non-hazardous before proceeding.

1. Using a bladed screwdriver, rotate the key switch on the mounting base
clockwise until the number required for the type of module being installed
aligns with the notch in the base.

2. Make certain the DIN-rail locking screw is in the horizontal position. You
cannot insert the module if the locking mechanism is unlocked.

3. Insert the module straight down into the mounting base and press to
secure. The module locks into place.

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Installing the Adapter

2.3 Installing the Removable Terminal Block

A removable terminal block is supplied with the mounting base assembly. To
remove, pull up on the RTB handle. This allows the base to be removed and
replaced as necessary without removing any of the wiring. Follow the following
instructions to reinsert the removable terminal block:

1. Insert the RTB end opposite the handle into the base unit. This end has a
curved section that engages with the mounting base.

Warning: When you connect or disconnect the Removable Terminal Block
(RTB) with the field side power applied, an electrical arc can occur. This could
cause an explosion in hazardous location installations.

Be sure that power is removed or the area is non-hazardous before proceeding.

2. Rotate the terminal block into the mounting base until it locks itself in
place.

3. If an I/O module is installed, snap the RTB handle into place on the
module.

2.4 Removing a Mounting Base

In order to remove a mounting base, you must remove any installed module, and
remove the Removable Terminal Block (if wired).

1. Unlatch the RTB handle on the I/O module.

2. Pull on the RTB handle to remove the Removable Terminal Block.

Warning: When you connect or disconnect the Removable Terminal Block
(RTB) with the field side power applied, an electrical arc can occur. This could
cause an explosion in hazardous location installations.

Be sure that power is removed or the area is non-hazardous before proceeding.

3. Press in on the module lock on the top of the module and pull up on the
I/O module to remove from the base.

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Installing the Adapter

Warning: When you insert or remove the module while backplane power is on,
an electrical arc can occur. This could cause an explosion in a hazardous
location.

Be sure that power is removed or the area is non-hazardous before proceeding.

4. Remove the module to the right of the base you are removing (The
interlocking portion of the base sits under the adjacent module.).

5. Use a small blade screwdriver to rotate the orange DIN-rail locking screw
on the mounting base to a vertical position. This releases the locking
mechanism.

6. Lift the mounting base straight up and remove.

2.5 Connecting Power

Refer to the appropriate L1Y or Remote Adapter installation guides for adapter
configuration instructions.

2.5.1 CompactLogix L16/L18 Processor Power Connectivity

When using an L16/L18 CompactLogix Processor, make sure that the Field
Power (FP) is jumped to the Power on the CompactLogix (VDC).

VDC+ to FP+
VDC- to FP-

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Installing the Adapter

2.5.2 Module Terminations

Caution: Do not connect 120/240V ac power to this supply.
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.

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Configuration

3 Configuration

The ILX34-MBS module supports several Point I/O Controllers and Adapters.
This includes:

 1734-AENT and AENTR
 1734-ACNR
 1769-L16ER-BB1B
 1769-L18ER-BB1B
 1769-L18ERM-BB1B

3.1 1734-AENT and 1734-AENTR

To configure the ILX34-MBS module with a 1734-AENT adapter:

1. Refer to the 1734-AENT documentation for information on configuring the
adapter.

2. Refer to Create Module I/O Configuration on page 18 to configure the
ILX34-MBS module for this adapter.

3. Set the chassis size as described in the 1734-AENT/AENTR
documentation.

3.2 1734-ACNR

To configure the ILX34-MBS module with a 1734-ACNR adapter:

1. Refer to the 1734-AENT documentation for information on configuring the
adapter.

2. Refer to Create Module I/O Configuration on page 18 to configure the
ILX34-MBS module for this adapter.

3. Schedule the ControlNet as described in the 1734-ACNR documentation.

3.3 1769-L16ER-BB1B, L18ER-BB1B, and L18ERM-BB1B

Follow the instructions is the Sample Configuration procedure in this section.

3.4 Sample Configuration Procedure

Note: The following example procedures are accomplished using Rockwell
Automation's Studio 5000 Designer, but apply to RSLogix as well. If you are
installing this module into a 1734-AENT or ACNR, use RSLogix 5000 v16 or
greater and skip to the section entitled Create Module I/O Configuration.

1. Open Studio 5000 and click Create New Project.

2. Expand CompactLogix 5370 Controller. Select the appropriate
processor from the list:

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Configuration

 1769-L16ER-BB1B
 1769-L18ER-BB1B
 1769-L18ERM-BB1B

3. Select the appropriate PLC and type in a Name for the Project.

4. Click Next. The Project Configuration dialog opens.

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Configuration

5. Select the Expansion I/O module number. If the modules present do not
match the modules specified in the Project, unexpected control may
occur. The Expansion I/O setting must match the actual number of
modules.

6. Click Finish. The following window opens.

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Configuration

3.4.1 Create Module I/O Configuration

1. Right-click on Expansion I/O and select New Module. The Select
Module Type dialog opens.

2. Locate 1734-MODULE (Generic 1734 Module) by scrolling the list or
using the Search filter.

3. Click Create. The New Module dialog opens.

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Configuration

Register/Discrete
Max Size per
Modbus Message

Input
Assy
Instance

Input
Size

Output
Assy
Instance

Output
Size

Configuration
Assy
Instance

Configuration
Size

8/128

101

34

102

26

103

38

24/384

105

66

106

58

103

38

36/576

107

90

108

82

103

38

4. Enter a Name for the module.

5. Enter Connection Parameters. The Connection Parameters section is
dependent on the application that you are using. There are three different
sizes allowed by the module.

6. Ensure that the Comm Format is set to Data-SINT and that the Slot field
matches the Slot Number that the module will reside in.

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Configuration

7. Click OK. The Module Properties Report dialog opens.

8. Set the RPI time to a value larger than 50 ms.

9. Click Apply.

10. Click OK. The module now appears under Expansion Module in the tree.

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Configuration

11. Under Tasks, expand Main Task > Main Program.

12. Double-click on the Main Routine to open it.

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Configuration

13. Right-click anywhere in the ladder and select Import Rungs...

14. Navigate to the location of the Add-On rung and click Import. The Import
Configuration page opens. You can obtain the Add-On rung from
http://psft.com/ilx34-mbs/dl.

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Configuration

15. Click OK. The Add-On rung appears in the Main Routine.

16. Double-click Controller Tags from the Controller Organizer.

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Configuration

17. Controller tags open for editing.

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Configuration

Label

Description

Baud Rate

0=19200
2=2400
3=4800
4=9600
5=38400

Serial Comm

0=7N2
1=7E1
2=7O1
3=8N1

4=8N2
5=8E1
6=8O1

Protocol

0=ASCII
1=RTU

Label

Description

Type

Set this to “0” for Master

Timeout

Timeout in centiseconds. The time that
the master waits for a response from
the Slave.

3.4.2 Configure Controller Tags

1. Expand the MBS_Config controller tag.

Serial Port

Set the following parameters to configure the Serial Port.

Master Configuration

The following parameters must be set to use the module as a Master.

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Configuration

Label

Description

Type

Set this to “1” for Slave.

Slave ID

1-255. Set this to the desired Slave ID
that the Master is attempting to access.

The following example shows the module configured as a Master, 19200 baud,

8N1 (8 Data bits, No Parity, and 1 Stop Bit) Framing, RTU mode with a three
second timeout.

Slave Configuration

The Count parameters determine that maximum address that the Master can
access for the ILX34-MBS. The default values represent the max addresses
allowed for the provided Add-On instruction. Valid ranges are: 00001 – 00576,
10001 – 10576, 30001 – 30501 and 40001 – 40501..

Coldboot Bit - If parameters change after initial configuration, use the Coldboot
bit to initiate the changes.

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Configuration

3.5 Downloading the Sample Program to the Processor

Note: The key switch on the front of the ControlLogix processor must be in the
REM or Prog position.

1. If you are not already online with the processor, open the
Communications menu, and then choose Download. You do not have to
download through the processor’s serial port. You may download through
any network connection.

2. When communication is established, Studio 5000 (or RSLogix 5000)
opens a configuration dialog box. Click the Download button to transfer
the sample program to the processor.

3. Studio 5000 (or RSLogix 5000) compiles the program and transfers it to
the processor. This process may take a few minutes.

4. When the download completes, the configuration program opens another
Confirmation dialog box. If the key switch is in the REM position, click OK
to switch the processor from PROGRAM mode to RUN mode.

Note: If you receive an error message during these steps, refer to the Rockwell
Automation documentation to interpret and correct the error.

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Configuration

Label

Description

Enable

0=Disable
1=Enable the Command: Polling and
Trigger allowed.
2=Enable the Command: Only Trigger
allowed.

Node

Node address of the target device on
the network (1-255).

Function

Function code for the command. 1, 2,
3, 4, 5, 6, 15 and 16 allowed for Master
and Slave. 8 allowed for Slave only.

DeviceAddress

Address in remote device associated
with the command (0-65535).

Count

Number of points associated with the
command.

InternalAddress

PLC Tag Internal address associated
with the command.

PollInterval

Minimum number of milliseconds
between issuance of command (0-2,
147, 483, 647ms).

Swap

0=None. No change is made in byte
ordering.
1=Words – The words are swapped.
2=Words & Bytes – The words are
swapped, and then the bytes in each
word are swapped.
3=Bytes – The bytes in each word are
swapped.
The words should be swapped only
when using an even number of words.

Trigger

1=Trigger the message. Can be
triggered anytime the command is
enabled.

3.6 Master Command Structure

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Configuration

Label

Description

InputBit

Incoming discreet data for address
ranges 0x and 1x from other devices.
Functions 5 and 15 when device is
configured as a Slave. Functions and 1
and 2 when configured as a Master.

InputRegister

Incoming register data for address
ranges 3x and 4x from other devices.
Functions 6 and 16 when device is
configured as a Slave. Functions and 3
and 4 when configured as a Master.

OutputBit

Outgoing discreet data for address
ranges 0x and 1x from other devices.
Functions 1 and 2 when device is
configured as a Slave. Functions and 5
and 15 when configured as a Master.

OutputRegister

Outgoing register data for address
ranges 3x and 4x from other devices.
Functions 3 and 4 when device is
configured as a Slave. Functions and 6
and 16 when configured as a Master.

3.7 Data Handling

These are the PLC data tags that are use for the Master and Slave. For the
Master, the following tags represent the internal addresses used by the Master
commands. For the Slave, the following tags represent the addresses accessed
by a remote Master.

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Configuration

Label

Description

Module

Module Status
1=Ready for Command
2=Processing Command
3=Waiting for Response
4=Processing Response

RXCnt

Number of messages received

TXCnt

Number of messages transmitted

ErrorCnt

Number of errors

CmdError [x]

The error represented for
MBS.MASTERCMD[x].
1= Invalid Function
2=Invalid Address
3=Invalid Data
20=Checksum Error
21=Modbus Invalid Message
22=Modbus Timeout
26=Float Word Swap Uneven Word
Count
209=Parity Error

3.8 Module Status

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General Features & Specifications

Configuration Environment

RSLogix 5000/Studio 5000

Max Modbus Command Size

Modbus command sizes are limited to 8, 16, and 36
words per command, depending on AOI selected

Max Modbus Commands

30

Communication Parameters

Baud Rate: 110 – 38.4K baud
Stop Bits: 1 or 2
Data Size: 7 or 8 bits
Parity: None, Even, Odd

Modbus Modes

RTU mode (binary) with CRC-16
ASCII mode with LRC error checking

Node Address

1 to 247

Supported Modbus Function
Codes:

1: Read Coil Status
2: Read Input Status
3: Read Holding Registers
4: Read Input Registers
5: Force (Write) Single Coil
6: Preset (Write) Single Holding Register
8: Diagnostics (Slave Only. Responds to Sub-function 00
15: Force (Write) Multiple Coils
16: Preset (Write) Multiple Holding Registers

4 General Features & Specifications

 Add-On instruction creates UDTs, providing logical definitions for I/O,

status, and control data

 Diagnostic data available in RSLogix 5000/Studio 5000 controller tags,

allowing decisions to be made based upon node health

 Module configuration is backed up in the CompactLogix project (ACD file)
 Serial port enable/disabled through ladder logic
 Supports up to 1000 words of data
 Supports up to 30 Modbus commands and up to 36 words per command
 The Serial Port can be configured as a Modbus Master or Modbus Slave

device

 Suitable for SCADA and field device interface applications

4.1 General Specifications – Modbus Master/Slave

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General Features & Specifications

Pointbus Current

75 mA @ 5 VDC

Number of Inputs

1 Dull duplex

Module Location

1734-TB or –TBS wiring base assembly (not included)

LED Indicators

1 green/red module status indicator
1 green/red network status indicator
2 green TXD, RXD status indicators

Operating Temperature

-4°F to 131°F (-20°C to 55°C)

Storage Temperature

-40°F to 185°F (-40°C to 85°C)

Relative Humidity

5% to 95% RH with no condensation

Dimensions
(H x W x L)

2.21 x 0.47 x 2.97 in
56 x 12 x 75.5 mm

Shock

30g Peak acceleration (operating)
50g Peak acceleration (non-operating)

Vibration

Tested 5g @ 10 to 500 Hz

ESD Immunity

6 kV contact discharges
8 kV air discharges

Agency

Applicable Standard(s)

UL/cUL

Class 1, Div. 2 Groups A, B, C, D

ATEX

Category 3, Zone 2

CE Mark

CB Safety

4.2 Hardware Specifications

4.3 Agency Approvals

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Support, Service & Warranty

5 Support, Service & Warranty

Contacting Technical Support

ProSoft Technology, Inc. (ProSoft) is committed to providing the most efficient
and effective support possible. Before calling, please gather the following
information to assist in expediting this process:

 Product Version Number
 System architecture
 Network details

If the issue is hardware related, we will also need information regarding:

 Module configuration and associated ladder files, if any
 Module operation and any unusual behavior
 Configuration/Debug status information
 LED patterns
 Details about the serial, Ethernet or fieldbus devices interfaced to the module,

if any.

Note: For technical support calls within the United States, an after-hours answering system allows
24-hour/7-days-a-week pager access to one of our qualified Technical and/or Application Support
Engineers. Detailed contact information for all our worldwide locations is available on the following
page.

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Support, Service & Warranty

Internet

Web Site: www.prosoft-technology.com/support
E-mail address: [e-mail]

Asia Pacific
(location in Malaysia)

Tel: [phone], E-mail: [e-mail]
Languages spoken include: Chinese, English

Asia Pacific
(location in China)

Tel: [phone] x888, E-mail: [e-mail]
Languages spoken include: Chinese, English

Europe
(location in Toulouse,

France)

Tel: [phone],
E-mail: [e-mail]
Languages spoken include: French, English

Europe
(location in Dubai, UAE)

Tel: [phone],
E-mail: [e-mail]
Languages spoken include: English, Hindi

North America
(location in California)

Tel: [phone],
E-mail: [e-mail]
Languages spoken include: English, Spanish

Latin America
(Oficina Regional)

Tel: [phone],
E-Mail: [e-mail]
Languages spoken include: Spanish, English

Latin America
(location in Puebla, Mexico)

Tel: [phone],
E-mail: [e-mail]
Languages spoken include: Spanish

Brasil
(location in Sao Paulo)

Tel: [phone],
E-mail: [e-mail]
Languages spoken include: Portuguese, English

5.1 Warranty Information

For complete details regarding ProSoft Technology’s TERMS & CONDITIONS

OF SALE, WARRANTY, SUPPORT, SERVICE AND RETURN MATERIAL
AUTHORIZATION INSTRUCTIONS please see the documents on the Product
DVD or go to www.prosoft-technology/warranty

Documentation is subject to change without notice.

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