SXWASB36X10001 Schneider AS-B-36 Server with 36 Onboard Points Alarm Trend Schedule Data Logging Unit

The SXWASB36X10001 is the higher density member of the SpaceLogic AS-B server family, featuring thirty-six onboard input and output points within a device that also performs system server duties. This combination makes it ideal for mid-sized projects: the same unit that runs control logic, manages schedules, records trends, and handles alarms is also directly wired to plant equipment. This enables mechanical room integration into a managed building system without requiring separate supervisory servers and field controllers typical of layered architectures.

When project scope expands beyond thirty-six points, the device supports remote I/O modules, ensuring installed hardware remains valuable. Two Ethernet ports with an internal switch allow daisy-chaining of controllers and servers, while support for BACnet/IP, BACnet MS/TP, and Modbus RTU/TCP enables integration of both legacy field devices and modern IP equipment into a single engineering database.

Selecting a server with onboard I/O impacts both panel design and software architecture, as field wiring connects directly to the supervisory device enclosure, eliminating the separation between plant and head-end systems inherent in layered designs. While this approach is valid for mid-sized buildings, it requires careful consideration since server faults now affect local control rather than just the supervisory layer.

With two switched Ethernet ports, network topology documentation during commissioning is essential. Additionally, controller backups should be created and stored separately from the device itself.

This server is ideally suited for:

• Mid-sized commercial buildings with single plant rooms where scope doesn't justify separate servers and field controllers but requires scheduling, trending, and alarm handling
• District heating and cooling substations utilizing onboard points for pump status, valve position feedback, temperature inputs, and enable signals
• Hotels and shopping centers where plant equipment is geographically concentrated and point counts range in the tens rather than hundreds
• Schools, clinics, and municipal buildings requiring single enclosures for both control and supervision
• Retrofit projects benefiting from protocol flexibility, enabling integration of existing Modbus equipment with newer BACnet devices without intermediate gateways