4-5
IM XL100C-E
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App
Index
Modbus Protocol
• UINT16
Specify this parameter when a “16-bit unsigned integer” is assigned to the
Modbus register.
• INT32_B
Specify this parameter when a “32-bit signed integer” is assigned to the Modbus
register in the order upper 16 bits followed by the lower 16 bits.
Specify the smaller register number (the higher register number in this case) in
[Registers].
• INT32_L
Specify this parameter when a “32-bit signed integer” is assigned to the Modbus
register in the order lower 16 bits followed by the upper 16 bits.
Specify the smaller register number (the lower register number in this case) in
[Registers].
• UINT32_B
Specify this parameter when a “32-bit unsigned integer” is assigned to the
Modbus register in the order upper 16 bits followed by the lower 16 bits.
Specify the smaller register number (the higher register number in this case) in
[Registers].
• UINT32_L
Specify this parameter when a “32-bit unsigned integer” is assigned to the
Modbus register in the order lower 16 bits followed by the upper 16 bits.
Specify the smaller register number (the lower register number in this case) in
[Registers].
• FLOAT_B
Specify this parameter when a “32-bit floating-point data” is assigned to the
Modbus register in the order upper 16 bits followed by the lower 16 bits.
Specify the smaller register number (the higher register number in this case) in
[Registers].
• FLOAT_L
Specify this parameter when a “32-bit floating-point data” is assigned to the
Modbus register in the order lower 16 bits followed by the upper 16 bits.
Specify the smaller register number (the lower register number in this case) in
[Registers].
Example (Read multiple points of data using a single command)
If you enter the following settings, the values of register 30001 and register 30002
(both INT16 type) are read into CO01 and CO02, respectively.
• Displaying the Loaded Data
The loaded data can be specified using CO01 to CO32. The decimal place and the
unit of the register data depend on the slave device. Correct the loaded data using the
scaling function of the XL100.
4.4 Setting the Modbus Master Function
