Special Remote I/O Operation; Overview Of Special Remote I/O - Omron 3G3MV-PDRT2 User Manual

Remote I/O Functions
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Special Remote I/O Operation

The special remote I/O function is a proprietary OMRON format, not a remote I/O format specified by
DeviceNet.
This remote I/O function can be used to read/set all of a 3G3MV, 3G3RV, 3G3PV, or 3G3FV Inverter's
parameters and take advantage of all of the Inverter's functions.

5-5-1 Overview of Special Remote I/O

Special remote I/O operations utilize DeviceNet remote I/O, and can directly write to and read from
internal Inverter registers. Basically, the register numbers for the various functions shown on this and
subsequent pages are specified for writing or reading. Once data has been written, it is retained until
it is changed by the next write operation.
I/O Format (Allocated Words)
■
● Outputs (PLC to Inverter)
Byte number
Wd n Right- 0 Function code (write/read code)
most
Left- 1 Register number leftmost byte (register number allocated to each parameter, etc.)
most
Wd n+1 Right- 2 Register number rightmost byte (register number allocated to each parameter, etc.)
most
Left- 3 Register data leftmost byte (data to write to specified register)
most
Wd n+2 Right- 4 Register data rightmost byte (data to write to specified register)
most
● Inputs (Inverter to PLC)
Byte number
Wd m Right- 0 Function code (returns transmitted code)
most
Left- 1 Register number leftmost byte (returns transmitted register number)
most
Wd m+1 Right- 2 Register number rightmost byte (returns transmitted register number)
most
Left- 3 Register data leftmost byte (returns transmitted data amount or reads data)
most
Wd m+2 Right- 4 Register data rightmost byte (returns transmitted data amount or reads data)
most
Note 1. Special remote I/O outputs and inputs are paired. When using special remote I/O, be sure
to set them together.
Note 2. Special remote I/O objects do not conform to the AC/DC drive profile, but are specially set
for this product.
Bit 7 Bit 6 Bit 5
Bit 7 Bit 6 Bit 5
Instance ID: 100 Decimal (64 Hex)
Bit 4 Bit 3 Bit 2
Instance ID: 150 Decimal (96 Hex)
Bit 4 Bit 3 Bit 2
Chapter 5
Bit 1 Bit 0
Bit 1 Bit 0
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