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8.
LED Indicators
The gateway contains several different LED indicators, each of which conveys
important information about the status of the unit and connected networks.
These LEDs and their functions are summarized here.
8.1
Toshiba ASD Common Serial Port Indicators
Each Toshiba ASD common serial port RJ45 connector has two LEDs
positioned immediately above them (1 green and 1 red).
Green LED ...... Indicates “drive link”. Solid green when a logical connection
exists with the attached drive (i.e. the gateway is reading data
from the drive).
Red LED.......... Data write. Flashes briefly when data is written to the drive
from the point database.
8.2
Ethernet Port Indicators
The Ethernet Port RJ45 connector has three LEDs positioned immediately to
the left of it.
SPD...... SPeeD: solid green whenever a 100BaseT Ethernet connection is
established.
LNK ...... LiNK: solid green whenever a valid Ethernet connection is detected.
ACT ...... ACTivity: flashes amber whenever network activity is detected.
8.3
RS485 Port Indicators
Each RS485 port has one red and one green LED situated next to its
respective terminal block.
Green LED ...... Lights when the gateway is transmitting data on the port.
Red LED.......... Lights when the gateway is receiving data on the port (note that
this does not indicate the validity of the data with respect to a
particular protocol: only that data exists and is being detected.)
8.4
Ethernet/IP Status Indicators
One Module Status (“MS”) LED and Network Status (“NS”) LED exists. These
bicolor red/green indicators conform to the prescribed behavior as dictated in
the Ethernet/IP specification, Volume 2, Chapter 9.
Summary of Contents for ETH-200
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