Chapter 2 Part Names - Mitsubishi Electric MELSEC L Series User Manual

CHAPTER 2
This chapter describes the part names of the head module.
No. Name
RUN LED
MODE
LED
1)
REM. LED
D LINK
LED
SD LED
RD LED
20
Downloaded from ManualsNet.com
PART NAMES
1)
2)
3)
 Indicates the operating status.
On Operating normally. (RUN state)
Operating normally. (STOP state)
• The switch of the head module is set to STOP. (Data transfer between the devices in the head module is
stopped.)
Flashing • The master station is in the STOP state. (Data transfer between the devices in the head module is
continued.)
• Accepting remote STOP request
• The head module has stopped due to an error (except a watchdog timer error).
Off A hardware failure or a watchdog timer error has occurred.

Indicates the mode.
On Online mode
Flashing Test mode
Off Offline mode
 Indicates the operating status of the own station.
On Operating normally.
The own station has not been reset after writing data to the CPU module. Or, forced input/output is being
Flashing
registered.
Off The initial data are being processed, or an error has occurred in the own station.
 Indicates the data link status.
On Data link (cyclic transmission being performed)
Flashing Data link (cyclic transmission stopped)
Off Data link not in operation (disconnected) or offline mode

Indicates the data sending status.
On Data being sent
Off Data not sent
 Indicates the data receiving status.
On Data being received
Off Data not received
search engine
6)
4)
5)
6)
Description
7)