Mitutoyo SJ-301 - RS-232 C Communication Specifications

No. 99MBB091A 13 - 10
13.10 RS-232C Communication Specifications
“EM” and “CR” in the following tables have the following meanings:
EM: End mark
CR: Carriage return
■ Overview of the interface between the SJ-301 and personal computer
If the SJ-301 is in the communication mode, the sheet keys and the touch panel cannot be
operated. All SJ-301 operations are performed via communication.
Various communication commands are issued to execute operations.
● About communication I/F
Xon/Xoff control and hard wired connection, etc., are supported
● Communicating conditions
Communication method: Start/stop method
Transmission speed: 9.6 K/19.2 K/28.8 Kbps
Data bits: 8 bits
Parity: NON/EVEN/ODD
Stop bit: 1 bit/ 2 bits
X parameter: ON
● Communication timeout
If a timeout occurs in the execution of a communication protocol, the operation returns to
the wait state.
● Connection to a personal computer
Connect to the D-SUB 9P (9-pin) port of the SJ-301.
1
2
3
4
5
6
7
8
9
DCD
RXD
TXD
DTR
GND
DSR
RTS
CTS
RI
1
2
3
4
5
6
7
8
9
PC
D-SUB 9P
SJ-301
D-SUB 9P
TXD
RXD
GND
CTS
RTS
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1----
2DXT)DS(ataddneStuO
3DXR)DR(atadevieceRnI
4----
5DNG- dnuorgemarFtuO
6----
7STC)SC(dnesot
raelCnI
8STR)SR(dnesottseuqeRtuO
9----