Others
6
RS-232C Interface
Control of this unit via a computer is possible by connecting the computer to this unit with a RS-232C
cross cable (D-Sub 9 pin).
RS-232C Specifi cations
This unit
●
PC refers to the controller such as a personal computer.
Mode
Character Length
Parity
Start Bit
Stop Bit
Data rate
Data format
Command Format
The command between this unit and the computer consists of Header , Unit ID , Command , Data and End .
●
Header (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
21
3F
40
06
■
Unit ID
This code specifi es the unit. The binary code is fi xed at 8901 .
52
Pin No.
Signal
2
RxD
3
TxD
5
GND
1,4,6 - 9
N/C
Non-synchronous
8 bit
None
1
1
19200 bps
Binary
Type
Operating command
Reference command
Response command
ACK
Function
Receive data
Transmit data
Signal ground
-
D0 D1
D2 D3
D4 D5
Start Bit
Description
PC→This unit
PC→This unit
This unit→PC
This unit→PC
(When the command is accepted without error, it returns to
PC)
Signal Direction
PC→This unit
This unit→PC
-
-
D6 D7
Stop Bit