Limitorque Valve Communications Interface Module
MVI56-LTQ
The MVI56 Limitorque Valve Actuator Master Communication Module allows Rockwell Automation ControlLogix I/O compatible processors to interface easily with Limitorque Valve Actuators and other Limitorque protocol compatible devices.
Features and Benefits
The MVI56-LTQ module acts as an input/output module between the Limitorque valve network and the Rockwell Automation backplane. The data transfer from the ControlLogix processor is asynchronous from the actions on the network. The 1500-word register space in the module transfers the valve information from the module to the processor. Ladder logic is responsible for control of the valves. Data transferred from the processor to the module instructs the module to execute commands to valves on the Limitorque network.
General Specifications
- Single Slot - 1756 backplane compatible
- Local or remote rack
- The module is recognized as an Input/Output module and has access to processor memory for data transfer between processor and module
- Ladder Logic is used for data transfer between module and processor.
- Configuration data obtained through user-defined ladder. Sample ladder file included
Applications
Industries and services that benefit from this integration include Aerospace, Chemical, Food/Beverage, Industrial Gases, Oil & Gas production, exploration, processing and refining, Mining, Pharmaceutical, Power, Pulp & Paper, Water/Wastewater.
Functional Specifications
- Support for the storage and transfer of up to 150 valves to the ControlLogix processor's controller tags
- Emulates Limitorque's Port A/B polling scheme using both ports on the module
- Supports the following valves
- MX/DDC Modbus
- UEC-3-DDC Modbus
- DDC-100M I/O module
- DDC-100M field unit
- Valvcon IVO (unit in Multidrop mode only)
- Software configuration
- Baud rate: 1200-115200
- Message response timeout
- Number of active slaves
- Last state on communication failure for valve data
- Network polling scheme
- Active slave table (bit mapped)
- Use of CTS module line option
- Backplane failure affect on communication port availability
- Support command
- Continuously polled
- Read registers 40008-40013, optional 40055 or 40006/40007
- Commands: open, stop, close, initiate network ESD, terminate network ESD, engage contactors 1 to 6, disengage contactors 1 to 6, position valve (0-100%)
- Data returned to the processor for each valve
- Valve position
- Status register
- Fault register
- Digital outputs
- Digital inputs registers 1 and 2
- Communication error code
- Communication poll counter
- Special polled registers
Hardware Specifications
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Application Serial ports
(P1, P2)
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Full hardware handshaking control, providing radio, modem, and multi-drop support
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Software configurable communication parameter
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Baud rate: 110 to 115,200 baud depending on protocol
Parity: None, Odd or Even
Data Bits: 5, 6, 7, or 8
Stop Bits: 1 or 2
RTS On/Off Delay: 0 to 65535 ms
RS-232 handshaking configurable
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App Ports (P1, P2)
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RJ45 (DB-9M with supplied cable)
RS-232, 485, and 422 (jumper selectable)
500V optical isolation from backplane
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CFG Port
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RJ45 (DB-9M with supplied cable)
RS-232 only
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Shipped with unit
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RJ45 to DB-9M adapter cable and 6-foot RS-232 configuration cable for the debug port
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Specification
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Description
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Backplane Current Load
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800 mA maximum @ 5 Vdc
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Operating Temperature
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0° C to 60° C (32° F to 140° F)
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Storage Temperature
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-40° C to 85° C (-40° F to 185° F)
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Shock:
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30g Operational
50g non-operational
Vibration: 5 g from 10 to 150 Hz
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Relative Humidity
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5% to 95% RH, (with no condensation)
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LED Indicators:
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Module Status
Backplane Transfer Status
Application Status
Serial Activity
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Ordering Information
| MVI56-LTQ |
Limitorque Valve Communications Interface Module |
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| To place an order, please contact your local ProSoft Technology, Inc. distributor. For a list of ProSoft distributors near you, click here. |
Distributors:
Place your order by email to orders@prosoft-technology.com:, fax to +1 661-716-5101.
Sales and Support:
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