IO-Link interfacing

[urdey]

I have IO=Link device  Browser can communicate  with device 

http://192.168.1.250/iolinkmaster/port[4]/iolinkdevice/pdin/getdata

 

and gives Json output 

{"cid":-1,"data":{"value":"00D1FF00"},"code":200}

 

How I will interface with steps of DAQFACTORY converting value hexadecimal to decimal to be displayed in its page

[AzeoTech]

You can use HTTP.Get() to retrieve the output and store it in a string:

private string in = HTTP.Get("192.168.1.250", "iolinkmaster/port[4]/iolinkdevice/pdin/getdata")

Then I'd just use find() to figure out where it says "value", then get that value.  Once you have the hex value as a string, you can prepend 0x in front and use evaluate:

private string hex = "00D1FF00"

private dec = evaluate("0x" + hex)

 

[urdey]

Hi Guru

   I try to use the sequence as below and begin sequence also command alert message The HTTP error and sequence not running.

Thanks

 

[urdey]

 

[AzeoTech]

You didn't follow my example.  You don't want http:// in the URL, nor the closing /.  It should be just like what I showed, with the IP address alone as the first string parameter, and the path as the second one.

[urdey]

Hi Guru 

Thanks for reply

 

 

HTTP.Get();
private string in = HTTP.Get("192.168.1.250") 
AL1350.Path ="/iolinkmaster/port[4]/iolinkdevice/pdin/getdata"
Find("value","getdata",0) 
Evaluate("value")

private string hex = "value" 
private dec = evaluate("0x" + hex) 

 

How to display value as channel in page since value is temperature in decimal format

 

[AzeoTech]

Don't make "dec" private.  Private means the variable is only available inside that script.  Instead either make it global, or create a Test D/A channel and set that with the result:

myChannel = evaluate("0x" + hex)

[urdey]

Hi Guru

 

 

HTTP.Get();
private string in = HTTP.Get("192.168.1.250") 
AL1350.Path ="/iolinkmaster/port[4]/iolinkdevice/pdin/getdata"
Find("value","getdata",0) 

global string hex = "value" 
Evaluate("value")

myChannel = Evaluate("0x" + hex) 

 while(1)
   myChannel.query()
   delay(60)
endwhile

 

Command/Alert shows 

C1040 channel does not have any valid values line 15 uncaught in sequence

Temperature values is not updating and showing 0.0000

 

Regards

 

 

 

[AzeoTech]

I'm sorry, but you are still not following my example:

private string in = HTTP.Get("192.168.1.250", "iolinkmaster/port[4]/iolinkdevice/pdin/getdata")
private index = find(in, "value", 0)
if (index != -1)
   in = mid(in, index + 8, 8 )
   myChannel.AddValue(evaluate("0x" + in))
endif

That should get you most of the way there, if not all the way.