CompoBus/D Communications Card Operations | Chapter 5 | |
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5-4 Special Remote I/O Operation
There are three kinds of CompoBus/D remote I/O operation: Basic remote I/O, standard remote I/O (the default setting), and special remote I/O. This section explains special remote I/O.
Special remote I/O operation enables using all the functions of
5-4-1 Overview of Special Remote I/O
Special remote I/O operations utilize CompoBus/D (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 re- tained until it is changed by the next write operation.
HWords Used for Special Remote I/O
D Outputs (SYSMAC PC to 3G3FV) | Instance ID: 100 Dec (64 Hex) |
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Byte number |
| Bit 7 | Bit 6 | Bit 5 | Bit 4 | Bit 3 | Bit 2 |
| Bit 1 | Bit 0 | |
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Wd n | Rightmost | 0 | Function code (write/read code) |
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| Leftmost | 1 | Register number leftmost byte (register number allocated to each parameter, etc.) |
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Wd n+1 | Rightmost | 2 | Register number rightmost byte (register number allocated to each parameter, etc.) |
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| Leftmost | 3 | Register data leftmost byte (data to write to specified register) |
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Wd n+2 | Rightmost | 4 | Register data rightmost byte (data to write to specified register) |
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D Outputs (3G3FV to SYSMAC PC) | Instance ID: 150 Dec (96 Hex) |
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| Bit 7 | Bit 6 | Bit 5 |
| Bit 4 | Bit 3 |
| Bit 2 |
| Bit 1 | Bit 0 |
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Wd m | Rightmost | 0 | Function code (returns transmitted code) |
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| Leftmost | 1 | Register number leftmost byte (returns transmitted register number) |
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Wd m+1 | Rightmost | 2 | Register number rightmost byte (returns transmitted register number) |
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| Leftmost | 3 | Register data leftmost byte (returns transmitted data amount or reads data) |
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Wd m+2 | Rightmost | 4 | Register data rightmost byte (returns transmitted data amount or reads data) |
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Note | 1. | Special remote I/O outputs and inputs are paired. When using special remote I/O, be sure to |
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Note | 2. | Special remote I/O objects do not conform to the AC/DC drive profile, but are specially set for |
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Note | 3. | The |
HFunction Codes
The special remote I/O function codes are shown in the following table. Note that they are different from the explicit message service codes.
Function code (hex) | Content |
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10 | Data writing |
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03 | Data reading |
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00 | No execution (data wrapping only; no internal |
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