Displaying string instead of input

[hybrid]

Hi there,

So I’ve got modbus device input set up and displaying in a table. Is it possible for a string to be displayed instead of the integer input and have that string change depending on the input.

i.e.
input X
x = 1 , display “Running”
x = 2 , display “Not running”
etc

Is this don’t in formula or elsewhere ? Could you give me an example.

Thanks

[Mikhail]

Hi,
Yes.

Option 1.
Use “Enum text” format of input channel and choose a unit with a list of values.

Option 2.
Use “ASCII text” or “Unicode text” format of input channel and create a special formula, for example: EncodeAscii(Cnl < 2 ? "Running" : "Not Running")

[hybrid]

Perfect, option 1 did it. Thanks.

I presume if I have an list of options greater that 100 chcaracters then I must use option 2 yes ?

[Mikhail]

Definitely.

[aluy069]

How it can be done using Option 1

My text are lest than 20 characters

Can you give me directions to doit

regards

[Mikhail]

1. Open Administrator.
2. Open the Units table, and create your row, for example,
Running; Not Running
3. Create an input channel.
4. Set the Format field to “Enum text”.
5. Set the Unit field to your the unit you created on step 2.

[Ashashash]

Hello,

I tried to use option 2,
entered EncodeAscii(Cnl < 2 ? “Running” : “Not Running”) in formula,
but received server error. What I am doing wrong?

Line 514, column 1: error CS1520: Method must have a return type
Line 514, column 19: error CS1031: Type expected

[Mikhail]

Hello,
Please provide screenshots of all changes you made related to this issue.

[Ashashash]

I only tried to create a formula:

https://ibb.co/qj0067F

• This reply was modified 3 years, 8 months ago by Mikhail.

[Mikhail]

Thanks. Such kind of formula works for input channel, but not for the formula table.

Formula for a channel:
EncodeAscii(Cnl < 2 ? "Running" : "Not Running")

Formula for the Formulas table:

public double MyFunc()
{
  return EncodeAscii(Cnl < 2 ? "Running" : "Not Running");
}

[AofT]

I have used the Formula in Testing,

public double MyFunc()
{
return EncodeAscii(Cnl == 2 ? “1234567890” : “I need 20 Letters”);

but only get the first 8 Numbers in the output to a Table. ie 12345678 and not the Full word (1234567890), why would this happen..?
Electrician by trade and new to coding, Thanks in advance.

[Mikhail]

but only get the first 8 Numbers

Input channels has 8 byte data size internally. That’s why string is truncated.

If you have a set of predefined strings, you could use enumerations. The string values are entered in the Units table, and then the unit is specified for an input channel. Check Off-On unit for example. Input channel format should be set to enumeration.

[AofT]

Hello Mikhail,
I have used the enumerations previously. This particular Tag is an Alarm word being sent from a PLC (0-35 Different Alarm States) hence why I tried the “Formula” approach so I could list all 35 Alarm descriptions depending on the Alarm Word Value. (Too many characters for enumerations)
Do you have any other suggestion for Displaying this Alarm / Event.?
Thanks in advance.

[Mikhail]

Hi,
Despite the inconvenience, I suggest using enumerations. You could prepare the text in another text editor and then insert into the grid cell.

In v6 it will be allowed to start each enumeration value from a new line with 1000 chars total limit. So, working with enumerations will be simplified in the future.

[Isnan A]

Hi Mikhail,

I made a toggle button without connecting to device and line (only input and output channels). Is it possible?

I have tried but it doesn’t work

this my input and output channel :
https://i.ibb.co/sKzh6dH/image.png
https://i.ibb.co/y8ZbpTW/image.png

Thanks

[Author]

Posts