Device Assignment - Mitsubishi Electric MELSEC iQ-RJ71EN71 User Manual

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
Item
Device
Start MODBUS Device No.
Allocation Points
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.)
Description
Set the devices of the CPU module to be assigned to the MODBUS devices.
Use H to specify a buffer memory area. (Example: H1D5000)
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
Set the number of device points of the CPU module to be assigned to the MODBUS devices.
2 PARAMETER SETTINGS
2.3 Application Settings
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