SIEMENS 16267-1/4 – MODULNET (M-NET) Interface Module | ISA Bus Platform
Engineering Background
The SIEMENS 16267-1/4 is a MODULNET (M-NET) Interface Module (MNI) designed for integration with ISA-bus-based industrial control architectures. MODULNET is a deterministic, token-passing fieldbus protocol developed by Siemens for high-reliability plant-floor communication, widely deployed in process industries, power generation, and discrete manufacturing throughout the 1980s–2000s. This module serves as the physical and logical bridge between the ISA backplane and the M-NET fieldbus segment.
Product Positioning
Targeted at maintenance engineers and system integrators responsible for sustaining legacy Siemens MODULNET installations, the 16267-1/4 MNI provides a verified, drop-in replacement or expansion node for existing ISA-based control cabinets. Konmask.com sources this module from traceable OEM and authorized-distributor channels, ensuring authenticity for critical infrastructure environments.
Complete Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Siemens AG |
| Part Number | 16267-1/4 |
| Module Type | MODULNET (M-NET) Interface Module (MNI) |
| Bus Interface | ISA (Industry Standard Architecture) |
| Network Protocol | MODULNET / M-NET (token-passing fieldbus) |
| Form Factor | ISA plug-in card |
| Operating Temperature | 0 °C to +60 °C (typical industrial range) |
| Weight (approx.) | 500 g |
| SKU | 16267-1/4 |
| Condition | New / Refurbished (specify at order) |
| Compliance | CE (original OEM certification) |
Note: Full datasheet available upon request. Contact support@konmask.com for detailed electrical specifications.
Proven Application Environments
- Process Industries: Chemical plants, refineries, and water treatment facilities running legacy Siemens MODULNET control networks
- Power Generation: Turbine control and substation automation systems with ISA-bus host controllers
- Discrete Manufacturing: Automotive and heavy-equipment assembly lines using M-NET for coordinated motion and I/O
- Building Automation: HVAC and energy management systems integrated via MODULNET segments
- System Expansion: Adding MNI nodes to existing M-NET rings without replacing the host platform
Engineering Advantages
- Deterministic Communication: Token-passing M-NET protocol guarantees bounded latency — critical for real-time process control
- ISA Backplane Compatibility: Direct plug-in to standard ISA slots; no adapter or riser required
- Legacy System Continuity: Extends the operational life of installed MODULNET infrastructure without costly platform migration
- OEM Authenticity: Sourced from verified Siemens supply chains — firmware and hardware revisions match original system BOM
- Reduced Downtime Risk: Stocking a spare MNI eliminates single-point-of-failure exposure on the fieldbus interface
System Architecture & Signal Flow
The 16267-1/4 MNI occupies an ISA slot in the host PC or industrial controller chassis. On the network side, it connects to the M-NET coaxial or twisted-pair segment via the module’s onboard transceiver. The token-passing protocol arbitrates bus access among all MNI nodes on the ring, with the host controller issuing commands and collecting I/O data through the ISA data/address bus. Typical ring topologies support multiple nodes with deterministic scan cycles, making the architecture suitable for time-critical control loops.
For system topology diagrams and integration schematics, contact our technical team.
Sourcing & Quality Verification
- All units sourced from OEM-authorized distributors or directly from Siemens surplus channels
- Each module undergoes visual inspection and functional verification prior to shipment
- Serialization and firmware revision documented and provided with shipment
- Packaging: anti-static ESD bag + foam-lined carton; meets IEC 61340-5-1 handling standards
- Certificate of conformance available upon request for regulated industries
Procurement Process
- Submit RFQ: Email support@konmask.com with quantity, required delivery date, and any revision/firmware constraints
- Receive Quote: Pricing and lead time confirmed within 1 business day
- Order Confirmation: Purchase order accepted via email or through the Konmask.com checkout
- Inspection & Dispatch: Module inspected, documented, and shipped with tracking within agreed lead time
- After-Sales Support: Technical assistance available post-delivery for integration questions
Technical FAQ
Q: Is the 16267-1/4 compatible with all ISA bus speeds?
A: The module is designed for standard 8 MHz ISA operation. Confirm host controller ISA slot specification before installation.
Q: Can this module be used in a PCI-to-ISA bridge setup?
A: Compatibility depends on the bridge chipset and driver support. Contact our team for application-specific guidance.
Q: Do you supply the M-NET configuration software?
A: We can assist in sourcing legacy Siemens MODULNET configuration tools. Inquire at support@konmask.com.
Q: What warranty is provided?
A: Standard 90-day warranty against DOA (dead-on-arrival) defects. Extended warranty available — ask for details.
Q: Can you supply multiple units for a plant-wide spares program?
A: Yes. Volume pricing and blanket order arrangements are available. Contact us for a tailored quote.
© 2026 Konmask.com. All rights reserved.
Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
