6 Others

RS-232CInterface

Control of this unit via a computer is possible by connecting the computer to this unit with a RS-232Ccross cable (D-Sub9 pin).

RS-232CSpecifications

Pin No.

Signal

Operation

Signal Direction

This unit

 

 

 

2

RxD

Receive data

This unit  PC

3

TxD

Transmit data

This unit  PC

5

GND

Signal ground

b

1, 4, 6 b 9

N/C

b

b

zPC refers to the controller such as a personal computer.

Mode

Non-synchronous

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Character Length

8 bit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Parity

None

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Start Bit

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Stop Bit

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Start Bit

Stop Bit

 

 

 

Data Rate

19200 bps

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Data Format

Binary

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Command Format

The command between this unit and the computer consists of AHeaderB, AUnit IDB, ACommandB, ADataB and AEndB.

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

 

 

 

21

Operating command

PC  This unit

 

 

 

3F

Reference command

PC  This unit

 

 

 

40

Response command

This unit  PC

 

 

 

06

ACK

This unit  PC

(When the command is accepted without error, it returns to PC)

 

 

 

 

 

„Unit ID

This code specifies the unit. The binary code is fixed at A8901B.

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