problem with receiving read from several Eurotherm 3216

[victsh]

Hello!

I have seven Eurotherm 3216 PID controllers, connected them as the Eurotherm engineer guide shows. I have set each of them in a Baud Rate of 9600, gave them address ID in a series of 1 to 7. I am using MOXA 1150 as a USB converter for RS232/485, and it was also set with a baud rate of 9600 in the device manager.

(It work in any Flow control both in Itools or LabView when I give commands)

It works only when I set RS-232 in the device manager. However, in the PIDS, it is set to R485.

and again, it works great together via Itools or giving commands in LabView.

When I try to set this option to RS-485 2W or 4W, they no longer work.

A proof that ITools communicate with the PIDS.

The Pid controllers work flawlessly with Itools, without issues.

When I try to run it via LabView (I am using 32xx Eurotherm driver), I can only provide commands, such as set temperature to 30 C, 10 C, etc.

However, when I try to receive the current temperature (Address 1 or 32770), I am receiving an error.

Moreover, It happens to any ''read'' commands.

What should I do?

I tried to locate the error with a simple VI script of connection and read the temperature.

I used the Highlight method to track the first error point.

The LabView error panel telling me that there is an error with Utility MODBUS RTU receive message.

What should I do?

Thank for any help!

[marhgct]

Hello,

I have a problem with this device about Open file+.vi

I cannot detect what I am doing wrong in this file. Please, any suggestions?

Thanks.

[GerdW]

Hi mar,

---

@marhgct wrote:

Please, any suggestions?

---

As can be read in this error message: file not found!

(Hint: "Not a path" is not a valid file path...)

Btw we cannot debug images!

[marhgct]

Sorry,

I solved the problem. It was in another file.

Thanks for everything anyway.

[Jianbo1]

How do you solve it please? 

I have same problem.

Thanks.

[vladsmrad]

Hi, could you provide us schematic of wiring how did you connect 7 eurotherms via rs232 with moxa 1150? Is it possible to connect multiple eurotherms through one usb port.

[jibby]

I had to go through as solve this as well, the driver as provided references

C:\Program Files\National Instruments\LabVIEW 2017\instr.lib\Eurotherm 32xx Series\Private\3200 Data.xls

This needs to be copied to

C:\Program Files\National Instruments\LabVIEW 2017\instr.lib\Eurotherm 32xx Series\

et voila - the driver works.