# Connecting Prosoft MV146-DFNT card to Ignition OPC Devices

**URL:** <https://forum.inductiveautomation.com/t/connecting-prosoft-mv146-dfnt-card-to-ignition-opc-devices/42666>\
**Category:** Ignition\
**Created:** [January 27, 2021, 5:31pm UTC](https://forum.inductiveautomation.com/t/connecting-prosoft-mv146-dfnt-card-to-ignition-opc-devices/42666 "2021-01-27T17:31:49Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![JTBeightol](https://avatars.discourse-cdn.com/v4/letter/j/b9bd4f/32.png) [@JTBeightol](https://forum.inductiveautomation.com/u/JTBeightol)\
**Post date:** [January 27, 2021, 5:31pm UTC](https://forum.inductiveautomation.com/t/connecting-prosoft-mv146-dfnt-card-to-ignition-opc-devices/42666/1 "2021-01-27T17:31:49Z")

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I am trying to connect a Prosoft MV146-DFNT module to my local ignition gateway via the OPC Devices. The card and SLC 5/04 processor together emulate a SLC 5/05 processor. I have added it as a SLC device but there is an issue with the connection path. Has anyone connected to a card like this in the past? Any help is appreciated. I am using Ignition 8.1.1.

UPDATE: Spoke to a Prosoft Engineer and he revealed that the card is only compatible with OPC-DA servers. Also, out of the 80 or so PCCC commands used to talk to SLC or PLC5 processors, this card only supports 8 as well as CIP data table writes and reads.  
Supported commands:  
PLC2 Unprotected Write  
PLC5 Typed Write  
PLC5 Word Range Write  
PLC Typed Write  
PLC2 Unprotected Read  
PLC5 Typed Read  
PLC5 Word Range Read  
PLC Typed Read

I have not been able to make an OPC-DA connection between Ignition and the MVI46. I have been using this post as a guide to set up the connection:

> [@OPC-DA to RSLinx Classic (Emulated PLC)](http://forum.inductiveautomation.com/t/opc-da-to-rslinx-classic-emulated-plc/11667):
>
> While doing testing I found a way to use the OPC-DA connection to create a link between 2 computers and read values from an RSLinx topic I had created to an emulated PLC. Note: Because this uses OPC-DA (because RSLinx does not yet support OPC-UA), this will only work on Windows (unless an OPC-DA client has been released for the linux version since last I used Ignition) Pre-requisites: Two computers (or VMs) that can communicate to each other using IP addresses and computer names. A computer …