Mitsubishi QJ71MT91 w/ Keyence NQMP8L & Keyence FD-R50

[Captain10 1]

Good morning all. I am working with a Mitsubishi Q series PLC (Q03UDECPU) with a QJ71MT91 communicating with a Keyence I/O Link Block NQMP8L and a FD-R50 flow meter. 

I am currently doing a bench test with all of these components and have great success getting all the hardware to communicate. No major issues establishing coms. There was a learning curve migrating from Rockwell to Mitsubishi, but I have enjoyed the challenge.

To the question, The way Keyence brings the process data in from the sensor itself is a 32 bit dword shown here. 

I am strictly dealing with the temperature aspect of the data at this point. The flow rate works fine. I can parse the data just fine and get a whole number temperature reading. However, if I want to parse the decimal points is where I am struggling. The customer hasn't stated they require the decimal point, but I would still like to know how jut to grow in my understanding.

Currently I am bringing the raw data into D4003. Moving that data into D400 and using the SFR instruction shown here.

I have tried converting the raw data into a float but could never get the logic to work right to get a temperature reading of lets say 24.3.

Any help would be sincerely appreciated. 

 

[IO_Rack 193]

It looks like the Temperature is in whole units. (1 unit - 1C/1F). What does note (*3) read?

[Captain10 1]

You actually brought something to my attention I neglected. I had to format the data coming from the sensor to accept the decimal format. 

I went ahead and wrote the changes to the flow meter. This is the solution I came up with. Let me know if this is the only way, or if there is a more efficient way to accomplish the desired outcome. 

 

 

 

 

 

 

 

Edited 8 August by Captain10

[IO_Rack 193]

That's the way I would do it as well. Glad you found a solution!