Yokogawa Standalone MW100 - Manual (Page 10)

10
2. Using the Configuration Tool
2.1. Connecting the MX118
Perform the following procedure to connect the MX118 to the PC and place it in Setting mode.
1. Install the MX118 in the MW100.
2. Connect the SERIAL connector of the MX118 to the PC’s RS232 port.
The MX118 uses a 9-pin D-sub connector.
Connect to the PC’s communication port as follows.
3. Confirm that the power to the MX118 is OFF, and set the dip switches as shown below on the front
of the MX118.
Turn ON the power with dip switch No. 1 turned on to place the MX118 in Setting mode.
Set dip switch No. 2 according to the baud rate of the serial port.
4. Turn ON the power to the MW100.
When operating in Setting mode, the MX118’s STATUS LED blinks at one second intervals.
Note
Ensure that dip switches 3-7 are turned OFF regardless of the MX118’s operation mode.
ON
1
2
3
4
5
6
7
8
ON
1
2
3
4
5
6
7
8
For baud rate of 9600 bps
No. 1： ON
No. 2： ON
No. 3–No. 7： OFF
No. 8： Ignored
For baud rate of 57600 bps
No. 1： ON
No. 2–No. 7： OFF
No. 8： Ignored
Serial comm. connector pin no’s Wiring serial communications
1
2
3
4
5
6
7
8
9
MX118
SERIAL
PC COM
port
3：TXD
2：RXD
5：GND SD
RD
SG