# SafetyPLC wont connect to X20SLX806

**URL:** <https://community.br-automation.com/t/safetyplc-wont-connect-to-x20slx806/9900>\
**Category:** Controls & Vision\
**Tags:** automation-studio\
**Created:** [January 28, 2026, 1:13pm UTC](https://community.br-automation.com/t/safetyplc-wont-connect-to-x20slx806/9900 "2026-01-28T13:13:47Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![valerio.manenti](https://dub1.discourse-cdn.com/brcommunity/user_avatar/community.br-automation.com/valerio.manenti/32/11712_2.png) [@valerio.manenti](https://community.br-automation.com/u/valerio.manenti)\
**Post date:** [January 29, 2026, 1:31pm UTC](https://community.br-automation.com/t/safetyplc-wont-connect-to-x20slx806/9900/6 "2026-01-29T13:31:43Z")

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Hi @yaree98 ,  
few questions:

1. (Michael’s) Do you have transfered the grey Automation Studio Project and do you have a online Connection to your grey PLC active in your Automation Studio?
2. (Michael’s) Is the grey PLC in Mode RUN?  
2.1) Could you upload SystemDump?
3. Are you using Mapp Safety? Which version?  
3.1) Have you enabled the visualization on the General safety configuration?

 ![image](https://europe1.discourse-cdn.com/brcommunity/original/2X/9/9d1d9570183d3c7898e78991ac2f9658477812c9.png)

Do you see your SLX after Login and Connect steps?

 ![image](https://europe1.discourse-cdn.com/brcommunity/original/2X/6/6f67312649ff9f496ae59fd236967e9cf5b92c5a.png)

in my case I have configured Safety User in this way:

 ![image](https://europe1.discourse-cdn.com/brcommunity/original/2X/3/32281fa65e4c61f6260caedb0928780bfa5a7a5f.png)

 ![image](https://europe1.discourse-cdn.com/brcommunity/original/2X/a/aaadc0286f3ebd6d7188eff185b939f035ca2deb.png)

 ![image](https://europe1.discourse-cdn.com/brcommunity/original/2X/2/200310f5aa4a067e0e54bbb4bba71c3614e63bfe.png)

 ![image](https://europe1.discourse-cdn.com/brcommunity/original/2X/4/48958d282e9727a04c8c2bacb1f0e61f03b3ebb8.png)

3.2) In case you didn’t configure the HMI, We have SfDomain library to connect/transfer/acknowledge Safe LOGIC/SLX  
Try to call SfDomainConnect and tell us which Error and StatusID you have

 ![image](https://europe1.discourse-cdn.com/brcommunity/original/2X/6/6893c19f1cde751689fd90e04349e23d293e9cba.png)

Helpful mapp Safety pages in the help: All section [Getting started](https://help.br-automation.com/#/en/6/safety/mapp_safety/getting-started/getting-started.html)

Helpful posts:

1. [SafeDESIGNER: I can’t open variable status](https://community.br-automation.com/t/safedesigner-6-4-1-0-i-cant-open-variable-status-because-of-internal-check-said-projects-are-different/9571)
2. [Troubleshooting SafePLC Communication Issues](https://community.br-automation.com/t/troubleshooting-safeplc-communication-issues/5577)

I bet six German beers that the problem isn’t the SafeDESIGNER configuration.  
Thanks  
Ciao  
Valerio

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