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Debug port connection parameters for Prosoft modules and gateways

Connect PC to module's debug / configuration port using a null-modem cable Start Hyperterminal, Putty or other comm program and use the following settings: bits per second: 57,600 data bits: 8 parity: none stop bits: 1 flow control: Xon/Xoff Once connected, press &quo...

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What is the difference between the MVI56-MNET and MVI56-MNETC?

 They are two similar modules using the same Modbus TCP/IP protocol; but are intended for slightly different applications.  The MNET has both server and client drivers and functionality. The MNETC has only client functionality. The distinction lies in who creates messag...

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What is the heat dissapation for MVI56, MVI56E, MVI69, MVI46 and MVI71 modules?

The heat dissipation for MVI56, MVI56E, MVI69, MVI46 and MVI71modules is as follows: The power ratings label states that the maximum current drawn from the ControlLogix backplane is 800 ma at 5.1 VDC, 4.08 watts.If you want to convert this to BTU/hr. you would multiply the power ...

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Is ProSoft aware of any difficulty with any MVI56 modules when used with RSLogix 5000 version 16.02?

At this time, ProSoft is not aware of any problems....

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Why do I have a yellow question mark in the RSWho window or in RSNetworx for my MVI56 Series module?

If you have a yellow question mark in RSLinx's RSWho window, or in the RSNetworx window it is usually due to not having the EDS file registered for the MVI56 Series modules. ...

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Can the MVI56-xx modules be placed in a remote rack?

Generally, yes. When using ControlNet to access the remote chassis, however, I/O bandwidth limitation may become an issue.Because the MVI56 modules requires 250 words of inputs, and 248 words of output, the ControlNet bandwidth may not be sufficient to handle this depending on th...

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What is the best way to monitor the "health" of my MVI56 module?

The controller tag local:(slot #):i.data[249] is the best indication of the module communicating with the CLX processor. If this value is not changing then the module has stopped for some reason.Related Keywords:MVI56...

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What data type must be used to declare the WriteData and ReadData arrays in MVI56 program?

All MVI56 modules the WriteData and ReadData arrays must be declared as data type int....

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What is the purpose of the last 4 branches of Rung 1 of Start/Power Up?

These branches have no purpose in normal operation. However, if it is necessary to write a string longer than 200 characters write-wait logic will have to be added to the ladder. In that case the 4 branches would be involved.As there is no write-wait logic in our sample ladder th...

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Floating Points

Floating point numbers (also known as 'real numbers') give a certain freedom in being able to represent both very large and very small numbers in the confines of a 32 bit word (that's a double word in our PLCs). Up until this point the range of numbers we were able to represent w...

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How do I handle unsigned integers in a CompactLogix or ControlLogix?

It is recommended to use a BTD instruction in RSLogix 5000 to convert the value from a signed integer to a DINT....

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What is the proper addressing for WriteData area vs. ReadData area for the MVI56-MCM ?

See attachment for explaination:...

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In past applications, I've used a 1756-MVI to read from a barcode scanner. Is your MVI56-ADM product similar?

Yes, the MVI56-ADM is essentially the same product as the 1756-MVI. One thing to note, for simple ASCII communications, such as reading/writing to a scale, barcode scanner, serial printer, etc. we strongly recommend you consider the MVI56-GSC....

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When saving a project including a ControlNet network in RSLogix5000 v18, a warning message appears - "Warning: Failed to create new device in ControlNet project file. Generic module cannot be created." What does this mean?

Using the following configuration:         - RSLogix 5000 Version 18         - A ControlNet Network is implemented in the project.          - At least one modul...

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How does the MVI56MCM module work in a Redundant Control Logix Setup?

Since all I/O modules in a redundant ControlLogix application must reside in the remote rack, the ProSoft MVI56MCMR(r) modules must also reside in those same remote I/O racks. As far as the ControlLogix processor is concerned, all MVI56 modules are just an I/O module. For the MVI...

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What RSLogix 5000 function will indicate whether a Prosoft module is present and functioning in the ControlLogix chassis?

The GSV (get system value) instruction in RSLogix 5000 can retrieve the status of the communication or I/O modules. The required parameters for GSV are: class name module instance name module name in the I/O configuration attribute name fault code dest tag for the va...

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"Invalid Input Size" when adding an Prosoft module to RSLogix 5000

Confirm that the Comm Format parameter in the modules I/O configuration is set to Data - INT. The default setting for this parameter in RSLogix5000 is Data - DINT. This setting will generate the error message mentioned above.If the incorrect comm format is set, the only way to co...

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I upgraded my RSLogix5000 software from an older version to Version 16 and now the clock in my MVI56 module does not seem to show the correct time. Why not?

When Rockwell Automation released Version 16 (and later) revisions of RSLogix5000 programming software for ControlLogix systems, they had to change the starting point of the timebase for the processor's internal clock and added some new features as a result of the change. Pl...

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I'm using an MVI56-MCM module in pass thru mode, and I cannot write to address 0417 or greater?

passthru sample logic if addresses greater than 9601 must be processed, then you will need to modify the array size, and limit statements for the mbcoil array. ..">MVI56-mcm mvi56mcm passthru function code 5 or 15 within the expanded sample ladder logic, only an arra...

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The BATT LED on my ProSoft MVI module is RED. How can I fix this problem?

The battery is integral, rechargeable, and soldered to the main board of the module. The on-board battery is not user-serviceable.The purpose of the battery on the MVI module is to maintain the BIOS settings which are checked during the boot up of the MVI module.  The batter...

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What module should I use in my control logix chassis for modbus

You would use the MVI56-MCM to provide Modbus in the ControlLogix chassis....

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Can the MVI56-WA-EIP be used to acquire I/O data from a ControlLogix CPU from a remote rack?

The MVI56-WA-EIP must be installed in a chassis that also has a ControlLogix processor installed. It will not function in a chassis that is loaded only with I/O modules. Thus you can use two MVI56-WA-EIP modules to move data between two processors.However, you cannot use a MVI56-...

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What is the backplane current draw for MVI56, MVI56E, MVI69, MVI46 and MVI71 modules?

The backplane current draw for modules in these series is 800mA at 5.1VDC.Additionally, MVI69 modules are required to be within two slots of a power supply on the 1769 bus.  ...

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I have an In-Chassis module, and am seeing a type mismatch shown in the module properties. What is the issue?

The type mismatch error is always shown since the ProSoft In-Chassis modules do not support the additional functionality required to respond to this inquiry from the processor.  This field does not reflect the status of the ProSoft In-Chassis module, and does not have any im...

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My ControlNet network shows a maximum usage value of 99.61% when an MVI56-XXX or MVI56E-XXX is in the rack, why is this?

99.61% represents the allowable ControlNet bandwidth. The bandwidth rule is that each scheduled node gets 1 and only 1 opportunity to talk during the scheduled portion of a NUT (Network Update Time). The maximum amount of data that any node can transmit at any time is approx 500 ...

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Where is the configuration stored on the MVI46, 56, 69 and 71 modules?

Q:  I've read where it states that the battery is backup power for the CMOS. Is this where all the PCB configuration is stored or do the modules have ROM memory for the PCB configuration?A:  With all the MVI46, 56 and 71 modules, configuration is either stored in CF, o...

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