MODEL: GR8-EM

GR8-EM SPECIFICATIONS

ES-8621 Rev.8 Page 2/7

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

Ethernet, Modbus/TCP

Standard: IEEE 802.3u

Transmission type: 10BASE-T, 100BASE-TX

Transmission speed: 10 / 100M bps

(Auto Negotiation)

Protocol: TCP/IP

Number of connections: 8

Transmission media:

10BASE-T (STP cable; Category 5)

100BASE-TX (STP cable; Category 5e)

Maximum segment length: 100 meters

Communication configuration: with Web browser

IP address: 192.168.0.1 (factory default setting)

Subnet mask

Default gateway

Port No.: 502 (factory default setting)

User name, password

Modbus exception response

Connection time out

RS-485, Modbus-RTU

Protocol: Modbus RTU

Configuration: Bus type multi-drop

Standard: Conforms to TIA/EIA-485-A

Communication: Half-duplex, asynchronous, no procedure

Transmission media: Shielded twisted-pair cable (CPEV-S

0.9 dia.)

Communication configuration: with Web browser

Baud rate: 2.4, 4.8, 9.6, 19.2, 38.4(*), 57.6, 115.2 kbps

Parity bit: None, Odd(*), Even

Stop bit: 1(*), 2

Read response timeout: 1000 msec.(*), 10 - 10 000 msec.

Write response timeout: 1000 msec.(*), 10 - 10 000 msec.

Cache function: Enabled(*), disabled

Inter-frame interval: 10 msec.(*), 0 - 500 msec.

(*)Factory default setting

Terminating resistor: Built-in 110 Ω (DIP Switch, default:

enabled)

INSTALLATION

Power consumption

• DC: ≤ 1.5 W 24 V DC

Operating temperature: -10 to +55°C (14 to 131°F)

Operating humidity: 10 to 90 %RH (non-condensing)

Mounting: DIN rail

Weight: 120 g (0.26 lb)

PERFORMANCE

Insulation resistance: ≥ 100 MΩ with 500 V DC

Dielectric strength: 1500 V AC @ 1 minute (Ethernet to RS-

485 to power to FE1)

STANDARDS & APPROVALS

EU conformity:

EMC Directive

EMI EN 61000-6-4

EMS EN 61000-6-2

RoHS Directive