Posts made by HPC

Hi all,

Is there a way to set a password on Mervis programs?
I know that there is login pass for controller but the user can still open the program and see the code. I need to make the code invisible for unauthorized people.

(-0.05)^(0.75) is equal to the "4th root of (-0.05)^3"=2th root of (2th root of (-0.000125))=2rd root of (0.011*i) where "i" is a complex number operand. The 2th root for a complex number is not defined in mathematics and as such, not in Mervis. That's why you get NAN.

Hi everyone,

I am using Cloudbow (very similar to Mervis) to talk via TCP with a Moxa port which is communicating over a serial RS232 with some devices via a dedicated protocol.
I am trying to read the data from Moxa but I can not read more than 128 bytes each time. Is there a way we can increase the buffer size in the software?

Hi all,

I have problems in sending strings over TCP in Mervis. The string here is a command which need to be sent to a TCP to RS232 converter and from there to a Microturbine.
I have generated the String in Mervis (as the output of a function block) but not sure how to transfer it.
I also think there might be an issue with my TCP channel created in Mervis either in Channel properties, Group definition, or data point parameters setting. In particular I want to know:
1- Is it possible to send the string directly to a TCP variable defined as data point? How?
2- If it is not possible to directly send a string to a variable, how we can send it as bytes? I tried using String-To-Bytes but it says "can't implicitly case from Bytearray to byte".

Any help is appreciated.

@Martin-Kudláček Thank you.

Hi,

I am using Mervis for PLC programming in ST.
How can I put a set of real numbers in an array?

Then how can I use the elements of this array individually in my ST program?