Modbus RTU /Ethernet Gateway• Integrated Serial Port Server (Serial Device Server)
• Modbus RTU Server/ Client • Modbus RTU to MQTT Gateway • Cloud JSON data to Modbus RTU • TCP Server/ Client, UDP, UDP Multicast • TCP Server • Auto-Polling Storage Multi Modbus/TCP Client to Single Modbus RTU Server • Cloud Modbus/TCP to Modbus RTU Client Access Modbus Gateway• Modbus RTU protocol to Modbus/TCP
• RTU/Register Auto Polling and Storage • Allows Multiple points access same serial device • Scheduling Polling Modbus RTU register JSON to Modbus RTU• CSV JSON Table
• Scheduling Polling Modbus RTU register • Scheduling Publish in JSON format • Subscribe support request and Setting Modbus Register
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Modbus RTU to MQTT• Publish RTU data in JSON format
• Subscribe JSON to Modbus RTU by HTTP Post, HTTP Get • NTP support for Network Time Synchronize
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NPS5151
The NPS5151 is a compact RS232/422/485 device server and IoT gateway specifically designed for industrial environments. It integrates multiple functions, including serial device server, Modbus gateway, MQTT gateway, RS485-to-JSON gateway, and virtual COM port device tool. The device features one RS232 DB9, one RS422/485 terminal connector and one RJ45 Ethernet port, offering reliable connectivity. Its compact design supports desktop and Din-rail installation, ensuring ease of deployment, while the terminal power supply allows for a wide power voltage input range of 10~30VDC. The NPS5151 presents a cost-effective and space-efficient solution compared to standard products.
-Virtual COM Device Discovery and Management
-Device Setting
-Cloud MQTT Configuration
-Web Configuration
| Network Interface | |
| Ethernet | One 10/100M Ethernet RJ45 2KV Surge Protection |
| Serial Interface | |
| Connector | One RS232 DB9 Male, One RS422/485 Terminal Block |
| Serial Parameters | Baud Rate: 1200~115200bps, Data Bit: 5~9 Parity Check: None, Odd, Even, Space, Mark Flow Control: None Flow Control |
| Service Mode | |
| Virtual COM Driver | Windows XP / Windows 7 / Windows 10/ Windows 11 |
| TCP | TCP Server for up to 30 TCP clients, or TCP client to up to 7 destination IP |
| UDP / UDP Multicasting | UDP Polling & Response by UDP packet between stations UDP Multicast to all station by UDP packet |
| Modbus | Modbus RTU to Modbus TCP Modbus TCP to Modbus RTU |
| Cloud | MQTT, JSON to Modbus RTU, HTTP Post, HPPT Get |
| Network Feature | |
| Protocol | Ethernet, IP, TCP, UDP, HTTP, ARP, ICMP, DHCP, DNS, Modbus |
| Security | TCP with authentication key |
| DHCP | DHCP Client for IP and DNS information from DHCP server |
| NTP | Network Time Precision (NTP) |
| Management | |
| System Management | Windows Utility, Virtual COM, WEB Management |
| Windows DLL Library | Device management function library (Windows DLL dynamic link library) by VC, VB, Delphi, or C++ Builder with functions such as read and write. |
| Power Input & Interface Connector | |
| Power Input | 10~30VDC Input, Terminal Block, DC Jack |
| Mechanical & Installation | |
| Installation | Din-Rail, Desktop |
| Enclosure | Metal |
| IP Protection | IP20 |
| Dimension | 94x65x25mm (LxWxH), Packing Box160x123x79mm, 52pcs per Carton |
| Environmental | |
| Operation Temperature | -25°C~70°C, 0% ~ 90%, Non-Condensing |
| Storage Temperature | -40°C~80°C, 0% ~ 90%, Non-Condensing |
| Reliability & Warranty | |
| MTBF | > 200,000 Hours |
| Warranty | 3 Year |
| Model | Description |
| NPS5151-E/U/UK | Compact One-port RS232/422/485 Device Server, Modbus, MQTT Gateway, 10~30Vdc
-Quick Installation Guide
-1x DB9 cable (Female-Female)
-1x 1m RJ45 cable
-Power Adapter (EU/US/UK)
-Din-rail Kit
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