16413-1-1 / 16413-1-5 – Siemens APACS MBI/NMI PCI Card

Overview

The Siemens APACS MBI/NMI PCI Card (part numbers 16413-1-1 and 16413-1-5) is a legacy PCI interface card used to connect APACS+ and QUADLOG control systems to host computers. Designed by Moore/Siemens, the board enables communication through the Module Bus Interface (MBI) and Network Module Interface (NMI), giving engineering and monitoring workstations a reliable link into an APACS+/QUADLOG system.

Seven Star LLC supplies genuine and tested Siemens APACS spare parts, including the 16413-1-1/16413-1-5 PCI card, to plants running legacy APACS+/QUADLOG systems across Oman and the GCC, helping maintain critical installed control infrastructure.

Operating Principle

The card installs as a standard PCI board in a host computer and provides two distinct communication paths: the Module Bus Interface for direct communication with APACS+ controller modules, and the Network Module Interface for network-level data exchange with the wider control system. Together, these let an engineering workstation both configure individual controller modules and monitor overall system status from a single PC.

Because the card handles this communication at the hardware level rather than through a generic network adapter, it preserves the deterministic, low-latency link that APACS+/QUADLOG engineering tools expect, which is important for configuration and diagnostic work on safety-related QUADLOG systems.

Engineering Design of the 16413-1-1/16413-1-5

The card is built to the standard PCI form factor for straightforward integration into a Windows-based engineering or monitoring workstation, without requiring specialized computer hardware beyond an available PCI slot. As the underlying APACS+/QUADLOG platform has been discontinued by Siemens, these cards are supplied as tested, functional legacy hardware, keeping installed control systems operable without forcing a premature full-system upgrade.

Because supply of this exact card has become limited as the platform ages, sourcing a properly tested unit matters more than with current-production hardware — a card that tests as functional at time of shipment is the practical assurance available for legacy APACS+/QUADLOG spares of this type.

Key Features

• Module Bus Interface (MBI) connection to APACS+ controller modules
• Network Module Interface (NMI) connection for system-level data exchange
• Standard PCI form factor for Windows-based workstations
• Direct support for engineering, configuration, and diagnostics
• Compatible with APACS+ and QUADLOG safety system integration
• Maintains legacy installed base without forcing a full DCS upgrade
• Tested functional prior to shipment
• Original Siemens/Moore design and manufacture

Industrial Applications

The 16413-1-1/16413-1-5 card is used in engineering workstations for Siemens APACS+ distributed control systems and QUADLOG safety systems, as well as in control room PCs that require MBI/NMI communication for ongoing system maintenance, diagnostics, and expansion work in legacy plants. It remains a necessary component wherever an installed APACS+/QUADLOG system is still in active service.

Across Oman, Muscat, Sohar, Salalah, and the GCC, Seven Star LLC supports plants running legacy Siemens APACS+/QUADLOG systems as a supplier of tested spare parts including this PCI interface card, helping extend the operational life of installed control and safety systems.

Technical Specifications

Request a Quote for 16413-1-1 / 16413-1-5 – Siemens APACS MBI/NMI PCI Card

Contact Seven Star LLC for a quotation, lead time, availability, and technical support on the Siemens APACS MBI/NMI PCI Card and other legacy APACS+/QUADLOG spare parts across Oman and the GCC.

Confirming the Part Number and Revision

APACS+ and QUADLOG workstations were built over many years, and the host PCs, operating systems and engineering software versions vary from site to site. Before ordering, remove the installed card (with the PC shut down and ESD precautions in place) and read the part number and revision from the board label. Note whether the card is a 16413-1-1 or a 16413-1-5, and record:

• the workstation model and its available PCI slots;
• the operating system and the version of the APACS+/QUADLOG engineering software in use;
• whether the card is used for MBI, NMI or both on that station;
• any jumper or address settings on the existing board.

Sharing these details lets the replacement be checked against your setup before shipment, which avoids surprises with legacy hardware.

Installing the Card in a Workstation

Legacy PCI cards are sensitive to the host PC as much as to the card itself. Keep in mind the following points:

• Take a full image backup of the workstation before changing hardware.
• Match any jumper settings to the old card before fitting it.
• Seat the card firmly in a PCI slot; many newer PCs have only PCIe slots and cannot accept it.
• Check that the driver loads correctly and that the engineering tool can see the controllers on the module bus or network.
• Keep the workstation offline from the business network, in line with your OT security policy.

Troubleshooting

If the workstation cannot communicate after a card change, check the driver status and the cable to the module bus or network first. Communication faults on older stations are also often caused by failing PC hardware, such as the motherboard or power supply, rather than the card. Keeping a spare, tested workstation with a known-good card is a practical approach for sites that rely on these systems.

Planning for Legacy APACS+/QUADLOG Systems

Several plants in Oman and the GCC still run APACS+ or QUADLOG systems for control or safety functions. Holding spare interface cards buys time to plan a migration without rushing it after a failure.

Sourcing Through Seven Star LLC

Send Seven Star LLC the part number, revision and workstation details, and we will reply with a quotation, availability and lead time.

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