Schneider STBNMP2212 Standard Network Interface Module
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Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Schneider Electric |
| Product Name | Standard Network Interface Module |
| Model | STBNMP2212 |
| Product Range | Modicon STB Distributed I/O Solution |
| Module Type | Modbus Plus Network Interface Module |
| Communication Protocol | Modbus Plus |
| Communication Speed | 1 Mbit/s |
| Network Structure | Industrial LAN |
| Network Connector | 9-pin female SUB-D connector |
| Configuration Interface | RS-232 |
| Additional Connector | 8-way female connector |
| Number of Network Segments | 1 primary segment, up to 6 extension segments |
| Devices per Segment | Up to 32 |
| Maximum Devices Across All Segments | Up to 64 |
| Addressable I/O Modules | 0–32 per I/O island |
| Communication Services | Global Data, Peer Cop dialogue, peer-to-peer dialogue |
| Rated Supply Voltage | 24 V DC |
| Supply Voltage Range | 19.2–30 V DC |
| Power Supply Type | SELV |
| Input Current | 430 mA for the supply circuit |
| Logic Bus Output Voltage | 5.25 V DC ±0.21% |
| Nominal Output Current | 1.2 A; 0.575 A at 60–70°C |
| Status Indicators | Green RUN and PWR LEDs, red ERR LED, yellow MB+ and TEST LEDs |
| Protection Rating | IP20 |
| Operating Temperature | 0–60°C without derating; -25–70°C with derating |
| Storage Temperature | -40–85°C |
| Maximum Operating Altitude | 2000 m |
| Relative Humidity | Up to 95% at 60°C, non-condensing |
| Overvoltage Category | II |
| Pollution Degree | 2 |
| Certifications | CE, UL, CSA, FM Class I Division 2, C-Tick, ATEX Category 3G |
| Dimensions | 40 × 128.3 × 70 mm |
| Weight | 0.145 kg |
FAQ
Q1: What is the main function of the Schneider Electric STBNMP2212?
The STBNMP2212 is a standard network interface module for the Modicon STB distributed I/O system. It connects an STB I/O island to a Modbus Plus network, enabling a compatible controller to exchange process data with distributed I/O modules and coordinate industrial automation operations.
Q2: Which communication protocol and transmission speed does the STBNMP2212 support?
The module uses Modbus Plus communication at a transmission speed of 1 Mbit/s. It supports Global Data, Peer Cop, and peer-to-peer communication services. The controller and network devices must be compatible with Modbus Plus to exchange data correctly.
Q3: Why does the STBNMP2212 fail to communicate with the PLC?
Check the Modbus Plus cable, SUB-D connector, network node address, and controller configuration. Confirm that the module receives a stable 24 V DC supply and that the network wiring is intact. Inspect the MB+ and ERR indicators and review controller diagnostics to identify possible communication faults.
Q4: What should I check if the MB+ indicator shows an abnormal status?
Inspect the network cable and connectors for loose contacts or damage. Verify node addressing and confirm that the network is correctly terminated according to the system design. Check whether other network devices are powered and communicating. If the fault remains, isolate the network in a controlled manner to determine whether the problem is caused by the cable, another node, or the interface module.
Q5: How many I/O modules and network devices can the STBNMP2212 support?
The module supports up to 32 addressable I/O modules per STB island. The network can include one primary segment and up to six extension segments, with up to 32 devices per segment and a maximum of 64 devices across all segments. The final configuration must comply with the network architecture and connected equipment limitations.
Q6: What power supply requirements apply to the STBNMP2212?
The module operates from a nominal 24 V DC supply, with an allowable voltage range of 19.2–30 V DC. The supply circuit draws approximately 430 mA. Check that the power supply has sufficient capacity for the complete I/O island and that the wiring and connections are secure. An unstable supply can cause unexpected resets or communication interruptions.
Q7: What do the RUN, PWR, ERR, MB+, and TEST LEDs indicate?
RUN indicates the operating state of the I/O island, while PWR indicates the power status. ERR signals a module error, MB+ provides Modbus Plus network status information, and TEST is associated with test mode. When an abnormal indicator appears, check the power supply, network connection, controller diagnostics, and module configuration together.
Q8: What should be verified before replacing an STBNMP2212?
Confirm compatibility with the existing Modicon STB system and Modbus Plus network. Record the node address and relevant network settings before removing the module. Check the mounting base, power supply, network connector, and wiring. After installation, verify the status LEDs, confirm communication with the controller, and test I/O data exchange before returning the system to normal operation.
Schneider STBNMP2212 Standard 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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