MODEL: GR8-EM

GR8-EM SPECIFICATIONS

ES-8621 Rev.8 Page 4/7

https://www.m-system.co.jp/

EXTERNAL VIEW

Connector for

Power Supply

Terminating Resistor

Setting SW

Status Indicator LED

Function Setting DIP SW

1

SW1

2

3

4

5

6

7

8

ON

RJ-45 Connector for

Ethernet

Connector for

RS-485 Communication

■ FRONT VIEW

■ RIGHT SIDE VIEW

■ STATUS INDICATOR LED

LED

Color

Light

Module Status

RUN

Green

Blinking (1-sec cycle)

Normal mode

Blinking in low speed (2-sec cycle)

Maintenance mode (with SW1-2 ON)

Blinking in high speed (0.4-sec cycle)

Error (device error when the unit wouldn't recover even after power

reactivation)

OFF

Power is off or device error

ERR

Red

ON

Data error from RS-485 device

RD

Green ON

Receiving data from the paired RS-485 station

SD

Green ON

Sending data to the paired RS-485 station

LINK

Green

ON

Being linked with 10BASE or 100BASE

Blinking

Sending/receiving data

OFF

No link detected

LK100

Green

ON

Being linked with 100BASE

OFF

Being linked with 10BASE or Not linked

■ DIP SW SETTING

• IP Address

SW1-1

Mode

Function

OFF (*)

Normal mode

Set with configurator

ON

Factory default mode

When starting up with the SW ON, the unit temporarily operates by the factory default settings of

network configuration, user ID and password.

The stored settings, however, are maintained and the unit returns to the original settings upon

restarting at normal mode. When network settings are changed during factory default mode, the

changed settings are stored.

• Maintenance mode

SW1-2

Mode

Function

OFF (*)

Normal mode

Normal operation

ON

Maintenance mode

Stop output

(Modbus function 05, 06, 15, 16 are disabled)