125
Connecting to external control devices
• To connect the laser marker to the PC for control, use a commercially available RS-232C cross cable (9-pin).
• In case of connecting to PLC, a type of the cable (straight or cross) differs depending on a manufacturer or a model.
Please follow the PLC manual.
• To connect RS-232C terminal without using a commercially available RS-232C cable, connect only 3 signals of RxD,
TxD and GND and do not use other signals on the laser marker side.
• The external controller may need a signal line connection (loop back line) other than RxD, TxD, or GND on the external
control device side depending on the specifications of the external control device. Read the instruction manual of the
external control device and connect it to the laser marker appropriately.
Connection example
RxD
TxD
GND
DCD
DTR
DSR
RTS
CTS
2
3
5
1
4
6
7
8
*
RxD
TxD
GND
2
3
5
RS-232C connector
(Laser marker)
Terminal No.
Terminal No.
External controller
Cross cable
Signal
Signal
* The loop back wiring on the external control device side shown in the above figure is just an example. The wiring
method varies depending on the specifications of each external control device. Read the instruction manual of the
external control device and connect it to the laser marker appropriately.
RS-232C communication conditions
Item
RS-232C communication conditions
Synchro system
Start-stop method
Communication
Full-duplex transmission
Baud rate
1200 / 2400 / 4800 / 9600 / 19200 / 38400 bps (initial setting: 9600 bps)
Data length
8-bit fixed
Parity
None / Even / Odd (initial setting: None)
Stop bits
1-bit / 2-bit (initial setting: 1-bit)
Flow control
None
Check sum
OFF / ON (initial setting: OFF)
Delimiter
CR / CR + LF (initial setting: CR)
Start code
• Setting request, Reading request, Reading response: STX
• Normal response: ACK
• Abnormal response: NAK
Reception timer
Timeout monitoring ON (10 sec.)
ンㄆㄇㄆㄓㄆㄏㄆ
• For the details of the setting method of communication conditions, refer to “3-2-2 Communication condition setting”
ME-LPM-SSM-10
Summary of Contents for LP-M Series
Page 16: ...16 MEMO ME LPM SSM 10...
Page 27: ...27 Chapter 1 Specification ME LPM SSM 10...
Page 37: ...37 Chapter 2 Preparation ME LPM SSM 10...
Page 69: ...Chapter 3 Connection for External Control ME LPM SSM 10...
Page 128: ...Chapter 4 Maintenance ME LPM SSM 10...
Page 148: ...Troubleshooting ME LPM SSM 10...
Page 169: ...Index ME LPM SSM 10...
Page 172: ...172 MEMO No 9000 0066 34V ME LPM SSM 10...
Page 173: ...No 9000 0066 34V...