6Others
RS-232C Interface
Control of this unit via a computer is possible by connecting the computer to this unit with a
RS-232C Specifications
This unit
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Pin No. | Signal | Operation | Signal Direction |
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2 | RxD | Receive data | This unit PC |
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3 | TxD | Transmit data | This unit PC |
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5 | GND | Signal ground | b |
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1, 4, 6 b 9 | N/C | b | b |
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zPC refers to the controller such as a personal computer.
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Character Length | 8 bit |
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Parity | None |
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| D0 | D1 | D2 | D3 | D4 | D5 | D6 | D7 |
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Start Bit | 1 |
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Stop Bit | 1 |
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| Start Bit |
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| Stop Bit | ||||||||
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Data Rate | 19200 bps |
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Data Format | Binary |
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Command Format
The command between this unit and the computer consists of “Header”, “Unit ID”, “Command”, “Data” and “End”.
zHeader (1 byte), Unit ID (2 bytes), Command (2 bytes), Data (n bytes), End (1 byte)
Header
This binary code indicates the start of communication.
Binary code | Type | Description |
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21 | Operating command | PC This unit |
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3F | Reference command | PC This unit |
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40 | Response command | This unit PC |
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06 | ACK | This unit PC |
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(When the command is accepted without error, it returns to PC)
Unit ID
This code specifies the unit. The binary code is fixed at “8901”.
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