Schneider STBNIP2311 Network Interface Module
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Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Schneider Electric |
| Product Name | Standard Network Interface Module |
| Model | STBNIP2311 |
| Product Range | Modicon STB Distributed I/O Solution |
| Module Type | Ethernet Network Interface Module |
| Communication Protocol | Ethernet Modbus TCP/IP |
| Ethernet Standards | IEEE 802.3 |
| Ethernet Ports | 2 × RJ45 female connectors |
| Ethernet Port Type | 10BASE-T / 100BASE-T |
| Transmission Rate | 10/100 Mbit/s |
| Maximum Ethernet Cable Length | 100 m per segment |
| Data Transmission Mode | Half-duplex or full-duplex |
| Network Structure | Industrial LAN / Ethernet Modbus TCP/IP |
| Network Segments | 1 primary segment, up to 6 extension segments |
| Addressable I/O Modules | 0–32 per island |
| Communication Services | SNMP, BootP/DHCP, Modbus TCP/IP messaging, embedded web server for configuration and diagnostics |
| Rated Supply Voltage | 24 V DC |
| Supply Voltage Range | 19.2–30 V DC |
| Power Supply Type | SELV |
| Input Current | 550 mA for the supply circuit |
| Recommended Power Supply Rating | At least 700 mA to accommodate inrush current |
| Logic Bus Output Voltage | 5.25 V DC ±0.21% |
| Nominal Output Current | 1.2 A; 0.575 A at 60–70°C |
| Configuration Interface | RS-232 |
| Additional Connector | 8-way female HE-13 connector |
| Status Indicators | ACT, RUN, ERR, MS, NS, PWR and TEST LEDs |
| Protection Rating | IP20 |
| Operating Temperature | 0–60°C without derating; -25–70°C with derating |
| Storage Temperature | -40–85°C |
| Overvoltage Category | II |
| Pollution Degree | 2 |
| Standards and Certifications | IEEE 802.3, IEC 61131-2, CE, UL, CSA |
| Dimensions | 40.5 × 130 × 70 mm |
| Weight | 0.145 kg |
FAQ
Q1: What is the main function of the Schneider Electric STBNIP2311?
The STBNIP2311 is a standard network interface module for the Modicon STB distributed I/O system. It connects an STB I/O island to an Ethernet Modbus TCP/IP network, allowing a compatible PLC or controller to exchange process data with distributed I/O modules and monitor system operation.
Q2: Which communication protocols does the STBNIP2311 support?
The module supports Modbus TCP/IP messaging, SNMP network management, and BootP/DHCP for network configuration. Its embedded web server also provides access to configuration, diagnostics, and selected variables. The specific functions available depend on the network setup and controller configuration.
Q3: Why can’t the PLC communicate with the STBNIP2311?
Check the Ethernet cables, RJ45 connectors, IP address, subnet mask, and controller communication settings. Confirm that the PLC and module are on compatible network segments and that the module has a stable 24 V DC supply. The ACT, MS, and NS indicators can help identify link activity or network-related problems.
Q4: What should I check if the Ethernet connection is unstable?
Inspect the network cable for damage and verify that the cable type and length meet Ethernet requirements. The specified maximum cable length is 100 m per segment. Check the RJ45 connections, switch ports, network speed settings, and possible IP address conflicts. If the issue persists, test the module using a known-good cable and network port.
Q5: How many I/O modules can the STBNIP2311 support?
The module supports up to 32 addressable I/O modules per STB island. The island can contain one primary segment and up to six extension segments. The final configuration must also comply with the limits of the connected I/O modules, power distribution components, and system architecture.
Q6: What power supply requirements apply to the STBNIP2311?
The module operates from a nominal 24 V DC supply, with an allowable range of 19.2–30 V DC. Its supply circuit draws approximately 550 mA, and a power supply rated for at least 700 mA is recommended to accommodate inrush current. An inadequate or unstable supply may cause startup failures, communication interruptions, or unexpected resets.
Q7: What do the ACT, RUN, ERR, MS, NS, PWR, and TEST LEDs indicate?
These indicators help assess Ethernet activity, I/O island operation, module errors, network status, power, and test mode. If the ERR or network status indicators show an abnormal condition, check the controller diagnostics, network configuration, supply voltage, and module installation. Interpret the LED states according to the product documentation.
Q8: What should be verified before replacing an STBNIP2311?
Confirm compatibility with the existing Modicon STB system and record the current IP address, network settings, and I/O configuration. Check the mounting base, power supply, Ethernet cables, and RS-232 configuration connection. After installation, verify the LEDs, confirm communication with the PLC, and test the I/O data exchange before returning the system to normal operation.
Schneider STBNIP2311 Network Interface Module is in stock. Please contact us for a quick quote and competitive pricing.
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666084105 | |||||||
| +8613666084105 | ||||||||
| 13666084105 | ||||||||
| Add to | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Company Introduction
Xiamen Shengruite Trading Co., Ltd. is a company specializing in the supply of industrial PLC spare parts.
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