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TGW-735i Isolated Modbus TCP To Modbus RTU/ASCII Gateway (3xRS485)

tGW-735i Isolated Modbus TCP to Modbus RTU/ASCII gateway (3xRS485)
£10300

(£123.60 incl VAT)
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Model:tGW-735i

Description

The tGW-735i is an Isolated 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.

For ease of use, the tGW-735 supports DHCP client and a UDP responder functions to minimise configuration errors caused by manual IP address configuration. It's powerful 32-bit MCU enables efficient handling of network traffic, while the built-in web server provides an intuitive web management interface that allows users to modify the configuration of the module, including the DHCP/Static IP, the gateway/mask settings and the serial port settings.

The module contains a dual watchdog, including a CPU watchdog (for hardware functions) and a host watchdog (for software functions). The CPU watchdog automatically resets the CPU if the built-in firmware is operating abnormally, while the host watchdog automatically resets the CPU if there is no communication between the module and the host (PC or PLC) for a predefined period of time (system timeout). The dual watchdog is an important feature that ensures the module operates continuously, even in harsh environments.

The tGW-700 module offers true IEEE 802.3af-compliant (classification, Class 1) Power over Ethernet (PoE) functionality using a standard category 5 Ethernet cable to receive power from a PoE switch such as the NS-205PSE. If there is no PoE switch on site, the module will also accept power input from a DC adapter. The tGW-700 module is designed for ultra-low power consumption, reducing hidden costs from increasing fuel and electricity prices, especially when you have a large number of modules installed. Reducing the amount of electricity consumed by choosing energy-efficient equipment can have a positive impact on maintaining a green environment.

The module is equipped with a male DB-9 or a removable terminal block connector to allow easy wiring. Based on an amazing tiny form-factor, the tGW-700 achieves maximum space savings that allows it to be easily installed anywhere, even directly embedded into a machine. It also supports automatic RS-485 direction control when sending and receiving data, thereby improving the stability of the RS-485 communication.

Features

  • Supports Modbus TCP/UDP master and slave
  • Supports Modbus RTU/ASCII master and slave
  • Max. TCP connections (masters) per serial port: 32 (tGW-71x), 16 (tGW-72x) or 10 (tGW-73x)
  • 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

Specifications

Models tGW-712
tGW-712i
tGW-722
tGW-722i
tGW-732
tGW-732i
tGW-715
tGW-715i
tGW-725
tGW-725i
tGW-735
tGW-735i
tGW-718
tGW-718i
tGW-724
tGW-724i
tGW-734
tGW-734i
System
CPU 32-bit ARM
Communication Interface
Ethernet 10/100 Base-TX, 8-pin RJ-45 x 1, (Auto-negotiating, Auto-MDI/MDIX, LED indicator)
PoE (IEEE 802.3af, Class 1)
COM1 3-wire RS-232 3-wire RS-232 3-wire RS-232 2-wire RS-485
4-wire RS-422
2-wire RS-485 2-wire RS-485 3-wire RS-232 2-wire RS-485 2-wire RS-485
2-wire RS-485
4-wire RS-422
COM2 3-wire RS-232 3-wire RS-232 2-wire RS-485 2-wire RS-485 3-wire RS-232 3-wire RS-232
COM3 3-wire RS-232 2-wire RS-485 3-wire RS-232
Self-Tuner Yes, automatic RS-485 direction control
RS-485 Bias Resistor Yes, 1 KΩ
Node 254 (max.)
UART 16c550 or compatible
Isolation 3000 VDC for only tGW-712i / 722i / 732i / 715i / 725i / 735i / 718i / 724i / 734i
ESD Protection +/-4 kV for only tGW-712i / 722i / 732i / 715i / 725i / 735i / 718i / 724i / 734i
COM Port Format
Baud Rate 115200 bps Max.
Data Bit 5, 6, 7, 8
Parity None, Odd, Even, Mark, Space
Stop Bit 1, 2
Power
Power Input PoE PoE: IEEE 802.3af, Class 1
DC Jack +12 ~ 48 VDC
Power Consumption 0.07 A @ 24 VDC
Mechanism
Connector Male DB-9 x1 10-Pin Removable Terminal Block x 1
Mounting DIN-Rail
Case Plastic
Environment
Operating Temperature -25 ~ +75 °C
Storage Temperature -30 ~ +80 °C
Humidity 10 ~ 90% RH, non-condensing

 

Description

The tGW-735i is an Isolated 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.

For ease of use, the tGW-735 supports DHCP client and a UDP responder functions to minimise configuration errors caused by manual IP address configuration. It's powerful 32-bit MCU enables efficient handling of network traffic, while the built-in web server provides an intuitive web management interface that allows users to modify the configuration of the module, including the DHCP/Static IP, the gateway/mask settings and the serial port settings.

The module contains a dual watchdog, including a CPU watchdog (for hardware functions) and a host watchdog (for software functions). The CPU watchdog automatically resets the CPU if the built-in firmware is operating abnormally, while the host watchdog automatically resets the CPU if there is no communication between the module and the host (PC or PLC) for a predefined period of time (system timeout). The dual watchdog is an important feature that ensures the module operates continuously, even in harsh environments.

The tGW-700 module offers true IEEE 802.3af-compliant (classification, Class 1) Power over Ethernet (PoE) functionality using a standard category 5 Ethernet cable to receive power from a PoE switch such as the NS-205PSE. If there is no PoE switch on site, the module will also accept power input from a DC adapter. The tGW-700 module is designed for ultra-low power consumption, reducing hidden costs from increasing fuel and electricity prices, especially when you have a large number of modules installed. Reducing the amount of electricity consumed by choosing energy-efficient equipment can have a positive impact on maintaining a green environment.

The module is equipped with a male DB-9 or a removable terminal block connector to allow easy wiring. Based on an amazing tiny form-factor, the tGW-700 achieves maximum space savings that allows it to be easily installed anywhere, even directly embedded into a machine. It also supports automatic RS-485 direction control when sending and receiving data, thereby improving the stability of the RS-485 communication.

Features

Specifications

Models tGW-712
tGW-712i
tGW-722
tGW-722i
tGW-732
tGW-732i
tGW-715
tGW-715i
tGW-725
tGW-725i
tGW-735
tGW-735i
tGW-718
tGW-718i
tGW-724
tGW-724i
tGW-734
tGW-734i
System
CPU 32-bit ARM
Communication Interface
Ethernet 10/100 Base-TX, 8-pin RJ-45 x 1, (Auto-negotiating, Auto-MDI/MDIX, LED indicator)
PoE (IEEE 802.3af, Class 1)
COM1 3-wire RS-232 3-wire RS-232 3-wire RS-232 2-wire RS-485
4-wire RS-422
2-wire RS-485 2-wire RS-485 3-wire RS-232 2-wire RS-485 2-wire RS-485
2-wire RS-485
4-wire RS-422
COM2 3-wire RS-232 3-wire RS-232 2-wire RS-485 2-wire RS-485 3-wire RS-232 3-wire RS-232
COM3 3-wire RS-232 2-wire RS-485 3-wire RS-232
Self-Tuner Yes, automatic RS-485 direction control
RS-485 Bias Resistor Yes, 1 KΩ
Node 254 (max.)
UART 16c550 or compatible
Isolation 3000 VDC for only tGW-712i / 722i / 732i / 715i / 725i / 735i / 718i / 724i / 734i
ESD Protection +/-4 kV for only tGW-712i / 722i / 732i / 715i / 725i / 735i / 718i / 724i / 734i
COM Port Format
Baud Rate 115200 bps Max.
Data Bit 5, 6, 7, 8
Parity None, Odd, Even, Mark, Space
Stop Bit 1, 2
Power
Power Input PoE PoE: IEEE 802.3af, Class 1
DC Jack +12 ~ 48 VDC
Power Consumption 0.07 A @ 24 VDC
Mechanism
Connector Male DB-9 x1 10-Pin Removable Terminal Block x 1
Mounting DIN-Rail
Case Plastic
Environment
Operating Temperature -25 ~ +75 °C
Storage Temperature -30 ~ +80 °C
Humidity 10 ~ 90% RH, non-condensing

 

Technical

tGW-700 Series Datasheet

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