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Check communication with Modbus TCP Slave
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Hi,
How I can get information about no communication with Modbus TCP slave (1)?
I want that signal to add red crosses on HMI informing that the displayed variables are not up to date.
I using Machine Expert V2.1 and TM251MESE
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HI @pawel_kowalski_ ,
In Machine Expert if you are using the Ioscanner you can check the Healthbits like this
You can always have a bit blinking on the PLC side and if it does not change the value you can trigger an alarm in the HMI or use a variables that in increasing his value.
If you want to avoid this you can create a variable in the HMI that checks the statistic of the communication using the address "@sys:2" if you get the 1 it means no connection to the device.
I hope this can help you and if this solves the problem remember to put the comment as solution 🙂
Best regards,
LeTomas
Link copied. Please paste this link to share this article on your social media post.
HI @pawel_kowalski_ ,
In Machine Expert if you are using the Ioscanner you can check the Healthbits like this
You can always have a bit blinking on the PLC side and if it does not change the value you can trigger an alarm in the HMI or use a variables that in increasing his value.
If you want to avoid this you can create a variable in the HMI that checks the statistic of the communication using the address "@sys:2" if you get the 1 it means no connection to the device.
I hope this can help you and if this solves the problem remember to put the comment as solution 🙂
Best regards,
LeTomas
Link copied. Please paste this link to share this article on your social media post.
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