• twitter
  • facebook
  • mail


Print Page


MELSEC iQ-R Series

Ethernet Interface Module

The MELSEC iQ-R Series Ethernet module is equipped with two ports that can be used as either a general Ethernet, CC-Link IE Field or Control Network module. The module design incorporates an easy-to-read display and a dot-matrix LED providing a quick way to assess network conditions using the module.

Dual gigabit Ethernet ports

The number of connectable ports on the Ethernet module has been doubled and the number of connections per channel increased. By increasing the number of ports the module can be used effectively as a gateway, simultaneously connecting a general Ethernet network to one port and using the second port for the CC-Link IE Field or Control network. Additionally, the number of connections per channel has been increased from 64 to 128, doubling the bandwidth for even more connectable devices.

Ethernet interface module specifications

Item RJ71EN71*2
Transmission specifications
Data transmission speed 1 Gbps/100 Mbps/10 Mbps
Interface RJ45 connector (Auto MDI/MDI-X)
Max. frame size (byte) 1518/9022 (when jumbo frames are used)
IP version Compatible with IPv4
Sending/receiving data storage memory
Number of simultaneous open connections 128
Fixed buffer 5K words x 16 (only P1 can be used)
Socket communications 5K words x 48 (when only P1 is used), 5K words x 112 (when only P1/P2 is used)
Random access buffer 6K words x 1
Simple CPU communication function 1K word x 512 (when only P1 is used), 1K word x 1024 (when only P1/P2 is used)
MODBUS®/TCP communication function Slave function*3
CC-Link IE Field/Control cable specifications
Communication cable Ethernet cable (Category 5e or higher, double shielded/STP)
Firmware update*4
*2: The specifications differ for the Q Series compatible Ethernet mode.
*3: Master function is supported with simple CPU communication and predefined protocol support functions.
*4: For more information, please refer to the relevant product manual.