Climatix 27 I/O Controller | Siemens HVAC Control Module with 27 I/Os
Manufacturer: Siemens
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Part Number: S55396-C881-A100
Condition：New with Original Package
Product Type: HVAC Control Module with 27 I/Os
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Product Description
The Siemens Climatix POL688.10/STD (S55396‑C881‑A100) is a freely programmable HVAC controller designed for advanced building automation applications.
It enables precise control, monitoring, and communication across heating, ventilation, and air‑conditioning systems in commercial and industrial environments.
Moreover, the controller supports a flexible I/O mix with 27 channels, including universal inputs, digital inputs, and outputs, allowing versatile process integration.
In addition, its built-in communication interfaces facilitate seamless connection with Climatix extension modules, third-party BMS, and IoT-enabled systems.
The compact design with SD card storage, battery holder, and multiple process bus connections ensures reliable operation while simplifying installation and maintenance.
Therefore, building managers benefit from improved energy efficiency, operational flexibility, and simplified system expansion.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | S55396‑C881‑A100 (POL688.10/STD) |
| Manufacturer | Siemens |
| Type | Climatix HVAC Controller |
| Operating Voltage | 24 VAC/DC |
| Total I/O Points | 27 (3 UI, 8 UIO, 6 DI, 10 DO) |
| Communication Interfaces | Ethernet, RS-485, KNX |
| Supported Protocols | Modbus, BACnet, PL-Link, JSON, OPC UA |
| Storage Options | SD card slot, USB interface |
| Net Weight | 1.54 kg |
| Dimensions (Packaging) | 14.10 × 18.70 × 10.10 cm |
| Protection Class | Standard industrial housing |
| Lifecycle Status | Active (PM300) |
FAQ
Q1: How many I/O points does the Climatix POL688.10/STD have?
It features 27 configurable channels: 3 UI, 8 UIO, 6 DI, and 10 DO.
Q2: Which communication protocols are supported?
The controller supports Modbus, BACnet, PL-Link, JSON, OPC UA, and KNX.
Q3: Can it integrate with IoT and cloud-based systems?
Yes, JSON and OPC UA enable seamless connection with modern IoT infrastructures.
Q4: Is external SD card or USB storage supported?
Yes, for logging, configuration backup, and firmware updates.
Q5: What power supply is required?
The controller operates on 24 VAC/DC power.