2 PARAMETER SETTINGS
2.3 Application Settings
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Device Assignment
Set the MODBUS device assignment parameters to use the MODBUS device assignment function.
Create the association between the following MODBUS devices and the device memory areas of the CPU module.
•Coil
• Input
• Input register
• Holding register
When "Device" is blank, values set in "Start MODBUS Device No." and "Allocation Points" are ignored.
In this case, data written into the programmable controller will not be assigned to the MODBUS devices.
(When the written data are read from the programmable controller, "Start MODBUS Device No." and
"Allocation Points" are set to 0.)
Item Description
Device Set the devices of the CPU module to be assigned to the MODBUS devices.
Use H to specify a buffer memory area. (Example: H1D5000)
Start MODBUS Device No. Set the start number of the devices of the CPU module to be assigned to the MODBUS devices.
The setting value for the start MODBUS device number can be obtained with the following formula.
• Start MODBUS device number = Last five digits of the target MODBUS device number - 1
Allocation Points Set the number of device points of the CPU module to be assigned to the MODBUS devices.
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