Technical Description
WTC-6131 is a compact version of WTC-63 series with less inputs and outputs, but with similar functions. The DATA-6131 RTU features one RS485 acquisition interface and one optional RS232/AI acquisition interface. It fully supports 4G as well as 3G and 2G cellular networks. The device enables scheduled data acquisition and transmission, and supports standard communication protocols such as hydrology, water resources management, environmental monitoring, and MQTT. Customized protocol support is also available upon request.Due to its small size and economical features, it’s widely used by many customers.
Product size

Product structure and interface description:

Selection Guide
| Type | Interface 1 | Interface 2 |
| Selection one | RS485 | RS232 |
| Selection two | RS485 | AI+VEXT |
Selection three | RS485 | None |

Features
● Working Mode Configurable
Always Online: Auto-connects on power-up, maintains persistent network connection, auto-reconnects if disconnected.On-Demand Online (Low Power Mode):
o No connection on power-up, connects only when receiving meter data via serial port;
o No connection on power-up, connects only upon any call ring or specified SMS.
Customizable per Center: Supports independent real-time or on-demand mode settings for each center.
● Report Mode Selectable
Active Reporting: Reports data to all centers with reporting function enabled.
Center Inquiry: Responds only to the inquiring center.
● Automatic Communication Mode Switching
Network Mode (Dedicated Line or Private Network)
Communication Method (TCP, UDP or SMS)
Addressing Mode (Fixed IP or Domain Resolution)
Port Settings
Communication Protocol (Hydrology/Water Resources/Environmental Protection/MQTT Transparent Protocol, or Custom Protocols)
● Automatic Meter Reading Data Caching (Ensures No Data Loss)
Built-in dual data buffers (uplink/downlink) with FIFO (First-In-First-Out) management
Data preservation during communication outages
● Dedicated Cloud Network Support
Enables point-to-point & multipoint device communication via Pingsheng Private Cloud
Establishes exclusive networks without requiring VPN dedicated cards
● Compatible With Leading Domestic SCADA Software
Kingview (WellinTech)
ForceControl (Sunwayland)
eCON (Beijing Contronics)
● Industrial-Grade Design with High Stability & Reliability
Industrial-Compliant Components
Wide Power Supply Range: 10~30V DC
Extended Operating Temperature: -40~+85℃