ICP DAS USA PET-7060, Руководство пользователя

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Chapter 3 Web Configuration Page
,
PET-7000 DIO User Manual, May 2009, V1.00, EMH-013-10----------
60
Editing the Group Register
Modbus Register : The Modbus Register number for the PET-7000 module
Alias : A string that describes the Modbus register. It can be a reference to a tag in the image
of the Web editing page which is selected from the “Page properties” section. (If the tag of the
Modbus register has defined on the image)
Scaling : The Modbus register value will be divided by the scale value before being displayed
on the web page, or multiplied before value is written to the PET-7000 module.
This function is only used for Input or Holding register types.
„
Enable: Enable the Scaling function
„
Disable: Disable the Scaling function.
Example:
1. Modbus register value= 620, Scale value=10
Î
62.0 will be shown on the Web page.
2. Modbus register value=7325, Scale value=1000
Î
7.325 will be shown on the Web
page.
3. Web page input= 32.20, Scale value=100
Î
3220 will be written to the Modbus
register.
Register Type : Defines the Modbus register type.
Bit format: Coil (Digital Output), Discrete input (Digital Input).
Byte format: Input (Analog Input), Holding (Analog Output).
Data Type : Defines the data type of the Modbus register and must be either Input or Holding.
The data type can be one of the following:
Table 3-4 Input or Holding Data Types
Data Type Definition
Unsigned 16 A 16-bit positive value
Signed 16 A16-bit value with a sign
Unsigned 32 A 32-bit positive value. The Most significant word (register) is on the
low address.
Signed 32 A 32-bit value with sign. The Most significant word (register) is on the
low address.