Mitsubishi Electric NF400-HEW, Instruction Manual

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Reset switch
CC-Link
communication LEDs
L RUN
L ERR.
SD
RD
Station number
setting switch
Communication
speed setting
switch
7.3 CC-Link setting area (with CC-Link communication option)
The MDU is a remote device station that occupies a single station.
MDU input data is retained if a sequencer CPU error or data ring error occurs.
ON ON ON
ON
Station number
setting switches 8 4 2 1
× 1
8 4 2 1
× 10
Setting example: Value of switches when turned ON:
10s place ...... 2 × 10 = 20,
1s place ...... 8 × 1 + 1 × 1 = 9,
20 + 9 = 29, and then
station number is 29.
Configure so that there are no duplicate station numbers configured on the same transmission route.
Refer to
“ 7.4 Number of CC-Link communication connectable units and precautions ” for information on the number of connectable units and
combinations with other devices.
(2) Communication speed (baud rate) setting switch
Use the communication speed setting switch to set the communication speed.
0
1
2
3
4
Switch setting Communication speed
156 kbps (factory setting)
625 kbps
2.5 Mbps
5 Mbps
10 Mbps
5 to 9 Setting error (Turn ON L ERR. LED when the error occurs)
Communication speed
setting switch
(3) Reset switch
The reset switch restarts the MDU status. If the station number (STATION No.) setting switches or communication speed (baud rate)
setting switch are operated after the control power supply is turned on, be sure to press the reset switch.
(4) CC-Link communication LEDs
The CC-Link communication LEDs indicate the status of the transmission
signal line and the error status of the MDU.
LED name
L ERR. LED
SD LED
RD LED
L RUN LED
Details
ON: Communication normal
OFF: Communication stopped
ON: Communication data error
Blinking: Communication data error
OFF: Communication normal
Turns ON when sending data
Turns ON when receiving data
(1) Station number (STATION No.) setting switches
Open the cover for the setting area on the front of the MDU, and use the station number setting switches to set the CC-Link communication
station number via BCD code.
(Setting range: 1 to 64) (factory setting: 1)
Caution
CC-Link operation precautions
[1] Prior to powering the transmission line for CC-Link communication, set the station number for each device, while keeping the number of
occupied stations in mind.
CC-Link devices use these station numbers to communicate, so configuring them is very important.
[2] Use a thin stick to operate the station number setting switches, and make sure that they have been switched all the way to the number to set.
Operate the station number configuration switches at 10 N or less.
[3] If the station number setting switches are operated after turning the control power supply on, the set station number will not be recognized
unless the reset switch is pressed.
[4] Use a thin stick to firmly press the reset switch.
[5] Do not use a mechanical pencil to operate the switch. The lead could enter the gap in the switch, resulting in erroneous operation and even
causing accident.