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Open Discussion / Reading a FLOAT32 register, convert it to decimal and display it
« on: December 16, 2024, 04:31:47 AM »
Hello All,
I am new to this and have a very little experience.
I have created a project priamrly to make checks on Medium Voltage substations.
We use a ModbusTCP coupler with I/Os modules to read Switched status and to perform On-OFF via DOs.
We also have ModbusTCP communication with Protection Relays and Power Analyzers.
Any register that is in 1-bit format or integer i can understand how to implement it,
But other formats I can not understand how to convert them.
For example, power analyzers give the active energy value in FLOAT32 on register 402700 (logicaly it is 2 points INT16).
I use ModbusView to try and see what the registers turn in as values.
Lets say the actual value on the Power Analyzer is 23308.684kwh
In ModbusView if I read this as a Holding Register - Float point it reads : 2,33807+E004
as holding register integer it reads : 18102 (402700) and 6494 (402701)
If I insert a DigitalPanelMeter and asign 402700 as PLCvalue it displays 18102 as expected.
My question is how can I display this in its proper format?
Thanx in advance
I am new to this and have a very little experience.
I have created a project priamrly to make checks on Medium Voltage substations.
We use a ModbusTCP coupler with I/Os modules to read Switched status and to perform On-OFF via DOs.
We also have ModbusTCP communication with Protection Relays and Power Analyzers.
Any register that is in 1-bit format or integer i can understand how to implement it,
But other formats I can not understand how to convert them.
For example, power analyzers give the active energy value in FLOAT32 on register 402700 (logicaly it is 2 points INT16).
I use ModbusView to try and see what the registers turn in as values.
Lets say the actual value on the Power Analyzer is 23308.684kwh
In ModbusView if I read this as a Holding Register - Float point it reads : 2,33807+E004
as holding register integer it reads : 18102 (402700) and 6494 (402701)
If I insert a DigitalPanelMeter and asign 402700 as PLCvalue it displays 18102 as expected.
My question is how can I display this in its proper format?
Thanx in advance