# Endress Hauser CM442

**URL:** <https://forum.inductiveautomation.com/t/endress-hauser-cm442/76699>\
**Category:** Ignition\
**Tags:** ignition81\
**Created:** [July 21, 2023, 10:02am UTC](https://forum.inductiveautomation.com/t/endress-hauser-cm442/76699 "2023-07-21T10:02:41Z")\
**Posts on this page:** 9\
**Page:** 1

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**Author:** ![ilikebeer](https://avatars.discourse-cdn.com/v4/letter/i/eb8c5e/32.png) [@ilikebeer](https://forum.inductiveautomation.com/u/ilikebeer)\
**Post date:** [July 21, 2023, 10:02am UTC](https://forum.inductiveautomation.com/t/endress-hauser-cm442/76699/1 "2023-07-21T10:02:41Z")

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A real beginner here as far as knowing what i'm doing. Have a new Endress Hauser CM442. Added it to the Devices using OPC UA. Brought into tags through the OPC and can see active tags. The problem i cannot figure out is how to get the pH and temp values from the CM442 to Ignition. Wondering if anyone can guide me through this step.

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<div class="post-metadata">

**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\
**Post date:** [July 21, 2023, 12:58pm UTC](https://forum.inductiveautomation.com/t/endress-hauser-cm442/76699/2 "2023-07-21T12:58:40Z")

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> [@ilikebeer](#):
>
> Added it to the Devices using OPC UA.

This isn't a clear description of what you've done.

Did you make a direct OPC UA connection to this device, or did you choose one of Ignition's drivers and make a device connection using a driver?

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<div class="post-metadata">

**Author:** ![ilikebeer](https://avatars.discourse-cdn.com/v4/letter/i/eb8c5e/32.png) [@ilikebeer](https://forum.inductiveautomation.com/u/ilikebeer)\
**Post date:** [July 27, 2023, 3:05pm UTC](https://forum.inductiveautomation.com/t/endress-hauser-cm442/76699/3 "2023-07-27T15:05:33Z")

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Sorry, been away for several days. Thanks for replying.  
In Ignition Configuration, under OPC UA - Device Connections, selected Create New Device and added the CM442 using the TCP Driver. It connects fine and then going the Ignition Designer, going to the Tag Browser - Connected Devices - OPC Driver it shows there along with only "Diagnostics" available for tags. I need to be able to see the Input and Outputs of the CM442, specifically the pH Probe readings.  
Endress technician i talked with said they are unfamiliar with Ignition and not much help beyond that.

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<div class="post-metadata">

**Author:** ![Matrix\_Engineering](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/matrix_engineering/32/19781_2.png) [@Matrix\_Engineering](https://forum.inductiveautomation.com/u/Matrix_Engineering)\
**Post date:** [July 27, 2023, 3:15pm UTC](https://forum.inductiveautomation.com/t/endress-hauser-cm442/76699/4 "2023-07-27T15:15:06Z")

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Don't use the TCP driver. A quick google suggests that it supports Modbus TCP. Create a driver connection with that driver, and either google for or request the list of Modbus registers from E+H.

Note the tags will not appear themselves with Modbus, you need to create them yourself. The manual describes the syntax:

[https://docs.inductiveautomation.com/display/DOC81/Modbus+Addressing](https://docs.inductiveautomation.com/display/DOC81/Modbus+Addressing)

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<div class="post-metadata">

**Author:** ![ilikebeer](https://avatars.discourse-cdn.com/v4/letter/i/eb8c5e/32.png) [@ilikebeer](https://forum.inductiveautomation.com/u/ilikebeer)\
**Post date:** [July 27, 2023, 4:31pm UTC](https://forum.inductiveautomation.com/t/endress-hauser-cm442/76699/5 "2023-07-27T16:31:19Z")

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Thanks Matrix\_Engineering. I followed the directions and creating the tags i get error\_configuration. If i put the port number down in the OPC Item Path i get the value correct at 44818 so i know the connections are good, it's just i'm missing the correct path ns=1;s=[WasteWater\_Controller][Diagnostics]/Port. I also tried creating a new Folder looking at their EDS file called Params and then tried to create a tag for Param46, should have gotten me the AI1Value but still getting error-configuration. Can i somehow use the EDS file for the CM442 to get the paths correct?

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<div class="post-metadata">

**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\
**Post date:** [July 27, 2023, 4:37pm UTC](https://forum.inductiveautomation.com/t/endress-hauser-cm442/76699/6 "2023-07-27T16:37:44Z")

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> [@ilikebeer](#):
>
> Can i somehow use the EDS file for the CM442 to get the paths correct?

If you're dealing with an EDS file it's not Modbus, it's EtherNet/IP, and we don't have a first party driver for that.

@pturmel does, though. At this point you need to take a hard look at the documentation and figure out exactly what hardware and comms modules/options you have.

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<div class="post-metadata">

**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [July 28, 2023, 12:13pm UTC](https://forum.inductiveautomation.com/t/endress-hauser-cm442/76699/7 "2023-07-28T12:13:48Z")

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The OP contacted me directly and supplied the information I needed to produce a configuration for the CM44x family:

```auto
<Controller>
  <DataTypes>
    <DataType Name="CM44x_Alg_t" Alignment="2" Handle="8fd5">
      Value=REAL
      Status=INT
      Unit=INT
    </DataType>
    <DataType Name="CM44x_Config_t" Alignment="2" Handle="f9f6">
      Reserved0=DWORD
      Reserved1=SINT
      WebEnable=SINT
      Reserved2=SINT
      Reserved3=SINT
    </DataType>
    <DataType Name="CM44x_Dig_t" Alignment="2" Handle="f854">
      Value=INT
      Status=INT
    </DataType>
    <DataType Name="CM44x_Inputs_t" Alignment="2" Handle="a29a">
      Reserved0=DWORD
      DiagnoseCode=INT
      StatusSignal=SINT
      Channel=SINT
      AI=CM44x_Alg_t[1..16]
      DI=CM44x_Dig_t[1..8]
    </DataType>
    <DataType Name="CM44x_Outputs_t" Alignment="2" Handle="8e3c">
      AO=CM44x_Alg_t[1..4]
      DO=CM44x_Dig_t[1..8]
    </DataType>
  </DataTypes>
  <Tags>
    <Tag Name="Liquiline1_C" Definition="CM44x_Config_t">
      <Data>
        00 00 00 00 00 01 00 00
      </Data>
    </Tag>
    <Tag Name="Liquiline1_I" Definition="CM44x_Inputs_t"/>
    <Tag Name="Liquiline1_O" Definition="CM44x_Outputs_t"/>
  </Tags>
  <Assemblies>
  </Assemblies>
  <Modules>
    <Module Name="Liquiline1" CatalogNumber="Liquiline_CM44x" Inhibited="false" Direction="Client"
    Vendor="1182" ProductType="43" ProductCode="4252" Major="3" Minor="1"
    InRPI="200000" UnicastIn="true" InRTMF="0" OutRPI="200000" UnicastOut="true" OutRTMF="4">
      <Route>port 2 10.20.30.40</Route>
      <Application>2004 2466 2c65 2c64</Application>
      <InputTag>Liquiline1_I</InputTag>
      <OutputTag>Liquiline1_O</OutputTag>
      <ConfigTag>Liquiline1_C</ConfigTag>
    </Module>
  </Modules>
</Controller>

```

Nice device, fwiw. The analog and digital I/O channels shown in this configuration are assignable to many different data items within the unit, with a variety of built-in unit conversions. (Apparently. I don't have one myself.)

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<div class="post-metadata">

**Author:** ![jack](https://avatars.discourse-cdn.com/v4/letter/j/cc9497/32.png) [@jack](https://forum.inductiveautomation.com/u/jack)\
**Post date:** [September 12, 2023, 7:31am UTC](https://forum.inductiveautomation.com/t/endress-hauser-cm442/76699/8 "2023-09-12T07:31:41Z")

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Would you mind describing or pointing me to how the use and/or build this configuration file?

I am looking to test this out on the MC44x family, and then see what can be done to pull tags directly from the E+H Promag Ethernet Flow meters into Ignition.

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<div class="post-metadata">

**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [September 12, 2023, 12:33pm UTC](https://forum.inductiveautomation.com/t/endress-hauser-cm442/76699/9 "2023-09-12T12:33:38Z")

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Since there's a sample above, the simplest way to get started is to load it into a test "EtherNet/IP Host Device" and then use the live editing dialogs in the gateway web interface to rework it to fit your needs. You will certainly need to familiarize yourself with the [module's user manual](https://www.automation-pros.com/enip1/UserManual.pdf). If you get stuck, I don't mind providing a modest amount of pre-sales support (via email).

Downloads and further information are available on my [Module Sales](https://www.automation-pros.com/modulesales.html) page.

{This is a third-party module that needs to be installed in your gateway, in case you hadn't realized.}