Jump to content

Recommended Posts

Hi I am trying to connect a 350 PLC with Inductive Automation's Ignition SCADA using Ignition's Modbus TCP driver. 

 

The PLC program image is attached. 

 

1726530430_ProgramImage.thumb.jpg.016d9b1626d62e93d017d8acc7630ec5.jpg

 

I do get a connection established in the Ignition software to the PLC but I can't read any tags. 

 

The following are all the settings I have in the Ignition SCADA

1494250936_IgnitionConnected.thumb.png.b1ab28209d7e25583e60c56265d704aa.png

 

1753407569_IgnitionSettings1.thumb.png.d4f76627b296366b7f350239a4471be1.png

 

1753407569_IgnitionSettings1.thumb.png.d4f76627b296366b7f350239a4471be1.png

 

789585584_IgnitionSettings2.thumb.png.1f2676177682057709f9de930d0036e2.png

 

618717587_IgnitionSettings3.thumb.png.ac6e719c26bcf366bf08890185d00aa2.png

 

I have tried Ignition's Modbus TCP, Ignition's Modbus RTU over TCP, Kepware's Modbus TCP driver all to no avail. 

 

I already have 2 other PLCs connected to the SCADA system via modbus TCP so I know that the Ignition's Modbus Drivers work. 

PLC program is also attached.

Please advise. 

Kind Regards

Rafe

 

 

 

 

 

 

 

 

MOdbusTCP.vlp

Share this post


Link to post
Share on other sites

Rafe,

Test MODBUS TCP communication first by well known MODBUS Client.

You can use Chipkin CAS Modbus Scanner.

Check Slave Addressing in VisiLogic Help.

If this test pass - test SCADA.

B.R.

 

Share this post


Link to post
Share on other sites

Set the SB168 power up value to 1, like the program check is telling you to do.  This may or may not help in this particular instance, but needs to be done to ensure continuity of comms.

cheers, Aus

Share this post


Link to post
Share on other sites

I know from experience that the Ignition software will work with a V1210 using MODBUS TCP. I don't see anything in your posts where you show the register addresses you're trying to read.

Share this post


Link to post
Share on other sites

For Holding Registers, add 40,001 to the MI address in VisiLogic. In other words, if you're trying to read MI 123, the Holding Register read address in Ignition should be 40124.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


×
×
  • Create New...