MVI56E
-
MCMXT &
MVI56E-MCM
ControlLogix Platform
Modbus Communication Module
Where Automation Connects.
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Installation manual MVI56-MCM
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Important Safety Information – MVI56E
Warnings
ATEX Warnings and Conditions of Safe Usage:
Power, Input, and Output (I/O) wiring must be in accordance with the authority having
jurisdiction
A
Warning – Explosion Hazard – When in hazardous locations, turn off power before
replacing or wiring modules.
B Warning – Explosion Hazard – Do not disconnect equipment unless power has been
switched off or the area is known to be non-hazardous.
C These products are intended to be mounted in an IP54 enclosure. The devices shall
provide external means to prevent the rated voltage being exceeded by transient
disturbances of more than 40%. This device must be used only with ATEX certified
backplanes.
D DO NOT OPEN WHEN ENERGIZED.
Ratings
• Backplane Current Load: 800 mA @ 5 V DC; 3mA @ 24V DC
• Operating Temperature: For standard module: 0o to 60oC (32o to 140oF); For XT module
(with conformal coating): -25o to 70oC (-13o to 158oF)
• Shock: 30g Operational; 50g non-operational; Vibration: 5 g from 10 to 150 Hz
• Relative Humidity 5% to 95% (non-condensing)
• All phase conductor sizes must be at least 1.3mm (squared) and all earth ground
conductors must be at least 4mm (squared).
Markings
CL I Div 2 GP A, B, C, D
Temp Code T5
II 3 G
Ex nA nL IIC T4 X
0o C<=Ta<=60oC
II – Equipment intended for above ground use (not for use in mines).
3 – Category 3 equipment, investigated for normal operation only.
G – Equipment protected against explosive gasses.
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1 Start Here
Contents
• System Requirements .............................................. 4
• Deployment Checklist............................................... 5
• Package Contents.................................................... 6
• Setting Jumpers........................................................ 7
• Install the Module in the Rack................................... 7
• LED Indicators ......................................................... 9
• Hardware Specifications........................................... 11
To get the most benefit from this User Manual, you should have the following skills:
■ Rockwell Automation® RSLogix™ software: launch the program,
configure ladder logic, and transfer the ladder logic to the processor
■ Microsoft Windows: install and launch programs, execute menu commands,
navigate dialog boxes, and enter data.
■ Hardware installation and wiring: install the module, and safely connect
Modbus and ControlLogix devices to a power source and to the MVI56E-MCMXT
& MN/I56E-MCM module’s application ports.
Caution: You must be able to complete the application without exposing personnel or
equipment to unsafe or inappropriate working conditions.
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1.1 System Requirements
The MVI56E-MCMXT & MN/I56E-MCM module requires the following minimum hardware
and software components:
• Rockwell Automation® ControlLogix™ processor (firmware version 16 or higher), with
compatible power supply, and one free slot in the rack for the MVI56E-MCMXT &
MN/I56E-MCM module. The module requires 800mA of available 5 VDC power
• Rockwell Automation RSLogix 5000 programming software
o Version 16 or higher required for Add-On Instruction
o Version 15 or lower must use Sample Ladder, available from
http://www.prosoft-technology.com
• Rockwell Automation RSLinx communication software version 2.51 or higher
• Pentium® II 450 MHz minimum. Pentium III 733 MHz (or better) recommended
• Supported operating systems: o Microsoft Windows Vista
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
• 100 Mbytes of free hard disk space (or more based on application requirements)
• 256-color VGA graphics adapter, 800 x 600 minimum resolution (True Color 1024 x 768
recommended)
• CD-ROM drive
• ProSoft Configuration Builder (PCB) (included)
• ProSoft Discovery Service (PDS) (included in PCB)
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.
Note: You can install the module in a local or remote rack. For remote rack installation, the module requires
EtherNet/IP or ControlNet communication with the processor.
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1.2 Deployment Checklist
Before you begin configuring the module, consider the following questions. Your answers
will help you determine the scope of your project, and the configuration requirements for a
successful deployment.
1 Are you creating a new application or integrating the module into an existing
application?
Most applications can use the Sample Add-On Instruction or Sample Ladder Logic
without any edits to the Sample Program.
2 Which slot number in the chassis will the MVI56E-MCMXT & MVI56E-MCM module
occupy?
For communication to occur, you must enter the correct slot number in the sample
program.
3 Are RSLogix 5000 and RSLinx installed?
RSLogix and RSLinx are required to communicate to the ControlLogix processor (1756L1, L55, L61 & L63). Sample Ladder programs are available for many versions of
RSLogix 5000.
4 How many words of data do you need to transfer in your application (from
ControlLogix to Module / to ControlLogix from Module)?
The MVI56E-MCMXT & MN/I56E-MCM module can transfer a maximum of 5000 (16-bit)
registers to and from the ControlLogix processor. The Sample Ladder transfers 600
words to the ControlLogix processor (into the Read Data array), and obtains 600 words
from the ControlLogix processor (from the Write Data array)
5 Will you be using the module as a Modbus Master or Modbus Slave? Will you be
transferring data using Modbus RTU or Modbus ASCII?
Modbus is a Master/Slave network. Only one Master is allowed on the Com line (max
32 devices/RS485). The Master is responsible for polling data from the Slaves on the
network.
6 For a Modbus Master, what devices (node ID) and Modbus addresses do you need
to exchange data with on the Modbus network?
For a Modbus Master, you must know the node ID # of each Slave device to poll. You
also need the Modbus address (for example, coil 0001, register 4001) of the data to
read from or write to each Slave device.
7 For a Modbus Slave, how many words or bits of data do you need to send to the
Master device?
The MVI56E-MCMXT & MN/I56E-MCM module can send data to a Modbus Master as 0x
coil data, 1x input coil data, 3x input registers, and 4x holding registers. The sample
program transfers 600 (16-bit) words or 9600 bits to the ControlLogix processor, and
600w or 18 bits from the ControlLogix processor.
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8 Serial Communication Parameters for the Modbus network:
Baud rate?
Data bits?
Parity?
Stop bits?
Required for both Master and Slave configurations.
9 Wiring type to use (RS232, 422 or 485). Configured by jumper settings.
Required for proper implementation of the module in Master and Slave configurations.
Note: If you are installing your module into a new system, and plan to use our Sample Ladder
Logic, refer to the printed Quick Start Guide in the module carton for simple installation procedures.
• For version 16 or newer of RSLogix 5000, refer to Using the RSLogix 5000 v16 Add-On
Instruction (page 33).
• For EXISTING system installations, refer to Integrating the Sample Ladder Logic into an
Existing Project (page 180).
Note: Most applications can use the Sample Ladder Logic without modifying the sample program.
1.3 Package Contents
The following components are included with your MVI56E-MCMXT & MN/I56E-MCM
module, and are all required for installation and configuration.
Important: Before beginning the installation, please verify that all of the following items are
present.
Qty. Part Name Part Number Part Description
1 MN/I56E-MCM
XT &
MVI56E-MCM
Module
MVI56E-MCMXT &
MN/I56E-MCM
Modbus Communication Module
1 Cable RL-CBL025 5 foot Ethernet Straight-Through Cable (Gray)
2 Cable Cable #14, RJ45 to
DB9 Male Adapter
cable
For DB9 Connection to Module’s Application
Serial Port
2 Adapter 1454-9F Two Adapters, DB9 Female to Screw Terminal.
For RS422 or RS485 Connections to Port 1 and
2 of the Module
1 inRAx
Solutions CD
Contains ProSoft Configuration Builder (PCB)
and ProSoft Discovery Service (PDS) for the
MVI56E-MCMXT & MVI56E-MCM modules.
If any of these components are missing, please contact ProSoft Technology Support for
replacement parts.
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1.4 Setting Jumpers
There are three jumpers located at the bottom of the module. The first two jumpers (P1
and P2) set the serial communication mode: RS-232, RS-422 or RS-485.
The following illustration shows the MVI56E-MCMXT & MN/I56E-MCM jumper
configuration, with the Setup Jumper OFF.
The Setup Jumper acts as "write protection" for the module’s firmware. In "write protected"
mode, the Setup pins are not connected, and the module’s firmware cannot be
overwritten. The module is shipped with the Setup jumper OFF. If you need to update the
firmware, apply the Setup jumper to both pins.
Note: If you are installing the module in a remote rack, you may prefer to leave the Setup pins jumpered.
That way, you can update the module’s firmware without requiring physical access to the module.
1.5 Install the Module in the Rack
If you have not already installed and configured your ControlLogix processor and power
supply, please do so before installing the MVI56E-MCMXT & MVI56E-MCM module.
Refer to your Rockwell Automation product documentation for installation instructions.
Warning: You must follow all safety instructions when installing this or any other electronic devices. Failure
to follow safety procedures could result in damage to hardware or data, or even serious injury or death to
personnel. Refer to the documentation for each device you plan to connect to verify that suitable safety
procedures are in place before installing or servicing the device.
After you have checked the placement of the jumpers, insert MVI56E-MCMXT & MVI56EMCM into the ControlLogix chassis. Use the same technique recommended by Rockwell
Automation to remove and install ControlLogix modules.
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You can install or remove ControlLogix system components while chassis power is applied
and the system is operating. However, please note the following warning.
Warning: When you insert or remove the module while backplane power is on, an electrical arc can occur. An
electrical arc can cause personal injury or property damage by:
o sending an erroneous signal to your systems actuators causing unintended machine
motion or loss of process control
o causing an explosion in a hazardous environment
Verify that power is removed or the area is non-hazardous 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.
1 Align the module with the top and bottom guides, and then slide it into the rack until the
module is firmly against the backplane connector.
2 With a firm but steady push, snap the module into place.
3 Check that the holding clips on the top and bottom of the module are securely in the
locking holes of the rack.
4 Make a note of the slot location. You must identify the slot in which the module is
installed in order for the sample program to work correctly. Slot numbers are identified
on the green circuit board (backplane) of the ControlLogix rack.
5 Turn power ON.
Note: If you insert the module improperly, the system may stop working, or may behave unpredictably.
Note: When using the MVI56E-MCMXT, you must use the 1756-A5XT or 1756-A7LXT chassis.
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1.6 LED Status Indicators
The scrolling LED display indicates the module’s operating status as follows:
Initialization Messages
Code Message
Boot / DDOK Module is initializing
Ladd Module is waiting for required module configuration data from
ladder logic to configure the Modbus ports
Ladder Logic Configuration
Required
Module did not receive the configuration block from ladder
logic during initialization. There are multiple reasons that
would cause this scenario:
■ Sample ladder logic or AOI is not loaded on processor
■ Module is located in a different slot than the one
configured in the ladder logic/AOI
■ Processor is not in RUN or REM RUN mode
Last config: <date> Indicates the last date when the module changed its IP
address. You can update the module date and time through
the module’s web page, or with the optional MVI56E Utility
Add-On Instruction.
Config P1/P2 <Modbus
mode> <Port type> <Baud>
<Parity> <Data bits> <Stop
Bits> <RS Interface> <ID
(Slave)> <Cmds: (Master)>
After power up and every reconfiguration, the module will
display the configuration of both ports. The information
consists of:
■ Modbus mode: RTU/ASCII
■ Port type: Master/Slave
■ Baud: 115200 / 57600 / 38400 / 19200 / 9600/ 4800 /
2400 / 1200 / 600 / 300
■ Parity: None / Even / Odd
■ Data bits: 7 / 8
■ Stop bits: 1 / 2
■ RS Interface: RS-232 / RS-422 / RS-485
■ ID: Slave Modbus Address
■ Cmds: Configured Modbus Master Commands
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Operation Messages
After the initialization step, the following message pattern will be repeated.
<Backplane Status> <IP Address> <Backplane Status> <Port Status> <Backplane
Status>
Code Message
<Backplane Status> OK: Module is communicating with processor
ERR: Module is unable to communicate with processor.
For this scenario, the <Port Status> message above is
replaced with "Processor faulted or is in program mode".
<IP Address> Module IP address
<Port Status> OK: Port is communicating without error
Master/Slave Communication Errors: port is having
communication errors. Refer to PCB diagnostics for
further information about the error.
The LEDs indicate the module’s operating status as follows:
Module Color Status Indication
APP On The MVI56E-MCMXT & MN/I56E-MCM is working
Amber
Off The MVI56E-MCMXT & MVI56E-MCM module program
has recognized a communication error on one of its
OK Off The card is not receiving adequate power or is not
securely plugged into the rack.
Green The module is operating normally.
Red/
Green
Red The module has detected an internal error or is being
initialized. If the LED remains red for over 10 seconds,
the module is not working. Remove it from the rack and
re-insert it to restart its internal program.
BAT Off The battery voltage is OK and functioning.
Red
On The battery voltage is low or battery is not present. Allow
battery to charge by keeping module plugged into rack for
24 hours. If BAT LED still does not go off, contact
ProSoft Technology, as this is not a user-serviceable
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1.7 Hardware Specifications
General
Specification Description
Backplane Current Load
800 mA @ 5 V DC
3 mA @ 24V DC
Operating Temperature
0° to 60°C (32 to 140°F) - MN/I56E-MCM
-25° to 70°C (-13° to 158°F) - MVI56E-MCMXT
Storage Temperature -40° to 85°C (-40 to 185°F)
Extreme/Harsh Environment MVI56E-MCMXT comes with conformal coating
Shock
30g Operational
50g non-operational
Vibration: 5 g from 10 to 150 Hz
Relative Humidity 5% to 95% (non-condensing)
LED Indicators
Battery Status (ERR)
Application Status (APP)
Module Status (OK)
4-Character, Scrolling, Alpha-Numeric
LED Display
Shows Module, Version, IP, Port Master/Slave
Setting, Port Status, and Error Information
Debug/Configuration Ethernet port (E1 - Config)
Ethernet Port
10/100 Base-T, RJ45 Connector, for CAT5 cable
Link and Activity LED indicators
Auto-crossover cable detection
Serial Application ports (P1 & P2)
Full hardware handshaking control, providing radio, modem, and multi-drop support
Software configurable communication
parameters
Baud rate: 110 baud to 115.2 kbps
RS-232, 485 and 422
Parity: none, odd or even
Data bits: 5, 6, 7, or 8
Stop bits: 1 or 2
RTS on/off delay: 0 to 65535 milliseconds
App Ports (P1, P2)
RJ45 (DB-9M with supplied adapter cable)
Configurable RS-232 hardware handshaking
500V Optical isolation from backplane
RS-232, RS-422, RS-485 jumper-select, each port
RX (Receive) and TX (Transmit) LEDs, each port
Shipped with Unit
RJ45 to DB-9M cables for each serial port
5 foot Ethernet Straight-Thru Cable (Gray)
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