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32 bit floating point values from single register. How?

Testing VT SCADA (the light version) to see if it can be used to manage several irrigation canal systems using Control Design CD120 RTU's. These are FM radio devices. They have a range of registers (47033-423039) designated for floating point value storage. These are 32 bit (4 byte) registers.

For example, modbus ID 20, register 47033 (0-based) currently contains the value 1.4839. A query using the manufacturer's software goes out as:

20 3 27 120 0 1 0 50

The response is

30 3 4 63 189 240 111 38 238

Which the software correctly decodes that as 1.4839

How can I configure VT Scada to poll these single 32 bit floating point registers? I am connected to the RTU with VT Scada and can correctly poll integer values, but the response I get from the floating point registers is incorrect.

Thanks for any assistance.

Testing VT SCADA (the light version) to see if it can be used to manage several irrigation canal systems using Control Design CD120 RTU's. These are FM radio devices. They have a range of registers (47033-423039) designated for floating point value storage. These are 32 bit (4 byte) registers. For example, modbus ID 20, register 47033 (0-based) currently contains the value 1.4839. A query using the manufacturer's software goes out as: 20 3 27 120 0 1 0 50 The response is 30 3 4 63 189 240 111 38 238 Which the software correctly decodes that as 1.4839 How can I configure VT Scada to poll these single 32 bit floating point registers? I am connected to the RTU with VT Scada and can correctly poll integer values, but the response I get from the floating point registers is incorrect. Thanks for any assistance.

Perfect. I just came her to let you know about that but am glad you were able to solve it.

Perfect. I just came her to let you know about that but am glad you were able to solve it.

Trihedral Engineering Ltd.

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