Nimbus Technologies

GW1101-1D(RS-485)-TB-P(12-48VDC) is Modbus gateway designed for integrating Modbus RTU/ASCII and Modbus TCP networks; it can achieve the conversion between Modbus RTU/ASCII and Modbus TCP protocols. This product has 1 RS-485/422 serial port and 1 100M Ethernet copper port. It adopts wall mounting to meet the requirements of different application scenes.
Modbus gateway supports multiple network protocols, such as Modbus, TCP, IP, UDP, TELNET, ARP, ICMP, HTTP, HTTPS, SNMP, SSH，SMTP, SNTP，DNS and DHCP protocols. It possesses complete management function, and supports access control, rapid configuration, online upgrading, etc. RTU Master, RTU Slave, ASCII Master, ASCII Slave and other operating modes are supported; it supports up to 256 Modbus TCP client (master) accesses and connects up to 128 Modbus TCP server (slave) devices. TELNET, WEB, SSHD and other access modes are also supported. It can provide users with good experience with friendly design of network management system interface, simple and convenient operation.

Features

• Support Modbus master/slave
• Supports up to 8 simultaneous Modbus TCP connections
• Up to 250 sets of Modbus RTU commands and built-in 9600 Modbus data registers
• Support CSV (Comma-Separated Values) file configuration, easy to use and maintain
• Built-in microSD memory card for storing Modbus data records
• Each data can contain 120 parameters
• The data record can support the ratio conversion function, which converts the original Modbus data into actual engineering units
• Isolated RS-485 with 2500 VDC isolation voltage protection

Introduction
The Modbus Data Concentrator is the ideal product for IIoT system integrators. The MDCL-705i is used to collect and store data from multiple Modbus slave devices over the serial communication interface and make the data available to back-end management system via Ethernet communication. In this way, conventional devices can be attached to a modern control system and through the Modbus TCP protocol easily communicates with most SCADA / HMI systems and PLCs. Thus the management system can poll the MDCL-705i for the data from several Modbus devices at once; making the process much more efficient.
The MDCL-705i can help you build a cost-effective data acquisition solution for reading real-time data from meters, sensors and more. The ability to integrate with SCADA systems and other industrial devices, and the reliable real-time data collection in combination with the data logger makes MDCL-705i one of the most cost-effective products of IIoT.

TCP to RTU support 8 simultaneous TCP Master, 32 simultaneous requests per Master.
 RTU to TCP support 8 TCP Slaves on each port.
 Software support :
TCP to RTU Slaves, RTU to TCP Slaves,
TCP to ASCII Slaves, ASCII to TCP Slaves
 Web Browser configuration
 Easy installation Windows utility
 On line F/W upgrade

Ethernet - Port Type : RJ-45 Connector 
Speed : 10 /100 M bps ( Auto Detecting )  Protocol : ARP , IP , ICMP , UDP , TCP , HTTP , DHCP 
Protocol ：PPPoE , DDNS , NTP , FTP , Telnet  Mode : TCP Server / TCP Client / UDP 
Protection : Built-in 1.5KV Magnetic Isolation.
WiFi port :  2.4G WiFi IEEE 802.11 b/g/n Support AP / Station
Serial Ports *2 
Port : RS – 232/422/485 * 2 Port ( RS-232 - RX/TX only ) 
Port : RS - 422 / 485 ( Surge Protect )  Speed：300 bps ~ 230.4 K bps  
RS-232 Pins : Rx , Tx , GND 
RS-422 : Rx+ , Rx- , Tx+ , Tx- ( Surge Protect) RS-485 : Data+ , Data- ( Surge Protect )  15KV ESD for all signals

Features

• 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
• Tiny Web server for configuration (HTTP)
• Allows automatic RS-485 direction control
• Terminal block connector for easy wiring
• Cost-effective Modbus gateway

Applications

• tGW-712 CR/tGW-712i CR- Tiny Modbus/TCP to RTU/ASCII Gateway with PoE and 1-port RS-232 (RoHS)

• tGW-722 CR/tGW-722i CR- Tiny Modbus/TCP to RTU/ASCII Gateway with PoE and 2-port RS-232 (RoHS)

• tGW-732 CR/tGW-732i CR- Tiny Modbus/TCP to RTU/ASCII Gateway with PoE and 3-port RS-232(RoHS)

• tGW-715 CR/tGW-715i CR- Tiny Modbus/TCP to RTU/ASCII Gateway with PoE and 1-port RS-422/485 (RoHS)

• tGW-725 CR/tGW-725i CR- Tiny Modbus/TCP to RTU/ASCII Gateway with PoE and 2-port RS-485 (RoHS)

• tGW-735 CR/tGW-735i CR- Tiny Modbus/TCP to RTU/ASCII Gateway with PoE and 3-port RS-485 (RoHS)

• tGW-718 CR/tGW-718i CR- Tiny Modbus/TCP to RTU/ASCII Gateway with PoE and 1-port RS-232/422/485 (RoHS)

• tGW-724 CR/tGW-724i CR- Tiny Modbus/TCP to RTU/ASCII Gateway with PoE, 1-port RS-232 and 1-port RS-485 (RoHS)

• tGW-734 CR/tGW-734i CR- Tiny Modbus/TCP to RTU/ASCII Gateway with PoE, 2-port RS-232 and 1-port RS-485 (RoHS)

• tGW-715-T CR tGW-715i-T CR- Tiny Modbus/TCP to RTU/ASCII Gateway with 1-port RS-422/485 (RoHS)

• tGW-718-T CR tGW-718i-T CR- Tiny Modbus/TCP to RTU/ASCII Gateway with 1-port RS-232/422/485 (RoHS)

Features

• Supports Modbus master/slave on the serial port and Modbus TCP slave on the Ethernet interface
• Supports up to 8 simultaneous Modbus TCP connections at one time
• Data pool for up to 9600 registers
• Modbus polling commands for up to 250 definitions
• Easy configuration with a simple CSV file for quick start-up
• HTML5 Web-based user interface

IntroductionMDC-700 series is a Modbus Data Concentrator that has ability to perform up to 250 Modbus/RTU commands to read/write from/to Modbus slave devices via RS-232/485 and allows up to 8 Modbus/TCP masters to get the polled data via the Ethernet. MDC-700 series provide a built-in web server to ease the configuring and provide clear information for the performed results of each Modbus/RTU command on the RS-232/485.

Modbus Data Concentrator
The MDC performs the pre-defined Modbus/RTU commands to read/write data from/to the Modbus/ RTU slave devices via the RS-232/485. It mirrors the data of the slave devices to its own shared memory. And it accepts up to 8 Modbus/TCP masters to directly read/write data form/to the shared memory instead of polling each Modbus/RTU slave device one by one. This way not only makes the data on the RS-232/485 sharable to multiple Modbus/TCP master but also shorten the time to read/write data from/to multiple Modbus/RTU slave devices.