The tGW-700 is a Modbus TCP to RTU/ASCII gateway that enables a Modbus/TCP host to communicate with serial Modbus RTU/ASCII devices through an Ethernet network, and eliminates the cable length limitation of legacy serial communication devices. The module can be used to create a pair-connection application (as well as serial-bridge or serial-tunnel application), and can then route data over TCP/IP between two serial Modbus RTU/ASCII devices, which is useful when connecting mainframe computers, servers or other serial devices that use Modbus RTU/ASCII protocols and do not themselves have Ethernet capability.

• Supports Modbus TCP/UDP master and slave
• Supports Modbus RTU/ASCII master and slave
• Max. TCP connections (masters) per serial port: 32
• Read-cache ensures faster Modbus TCP/UDP response
• Supports UDP responder for device discovery (UDP Search)
• Static IP or DHCP network configuration
• Easy firmware update via the Ethernet (BOOTP, TFTP)
• Tiny Web server for configuration (HTTP)
• Contains a 32-bit MCU that efficiently handles network traffic
• 10/100 Base-TX Ethernet, RJ-45 x 1 (Auto-negotiating, auto MDI/MDIX, LED Indicators)
• Includes redundant power inputs: PoE (IEEE 802.3af, Class 1) and DC jack
• Allows automatic RS-485 direction control
• 3000 VDC Isolation and +/-4 kV ESD protection for i versions
• Male DB-9 or terminal block connector for easy wiring
• Tiny form-factor and low power consumption
• RoHS compliant & no Halogen
• Cost-effective Modbus gateway

tGW-718i-D CR: Tiny Modbus/TCP to RTU/ASCII Gateway with PoE, Power Isolation, and 1-port RS-232/422/485 (DB-9 Male Connector) (RoHS) Includes DC connector to 2-wire power cable, 0.3 M