The ABB Bailey NDSM02 is an enhanced Digital Slave Module used within the INFI 90 / Net 90 distributed control system (DCS). It is designed to provide reliable expansion of digital input and output capabilities, enabling efficient handling of discrete signals between field devices and central control processors.
Compared with earlier NDSM versions, the NDSM02 offers improved signal stability, faster response performance, and enhanced diagnostic capability. It is widely deployed in power generation plants, oil refineries, petrochemical facilities, and large-scale industrial automation systems, where dependable digital signal processing is essential for safe and continuous operation.
Technical Specifications
| Item | Specification |
|---|---|
| Product Type | Digital Slave Module |
| System | ABB Bailey INFI 90 / Net 90 DCS |
| Function | Digital I/O expansion and signal management |
| Signal Types | 24 V DC / dry contact digital signals |
| Channel Capacity | Multi-channel digital input/output support |
| Interface | INFI 90 proprietary system backplane |
| Processing Role | Distributed digital signal handling |
| Response Time | Improved fast-switching performance |
| Isolation | Enhanced channel-to-system electrical isolation |
| Diagnostics | Advanced module status and fault monitoring |
| Compatibility | ABB Bailey processors and I/O modules |
| Module Type | Rack-mounted PCB module |
| Power Supply | System backplane powered |
| Environmental Protection | Industrial-grade noise resistance |
| Operating Temperature | 0°C to 70°C |
| Humidity | 5%–95% non-condensing |
Dimensions & Weight
| Item | Value |
|---|---|
| Size (L × W × H mm) | 102 × 127 × 178 mm |
| Weight | approx. 0.8 – 1.3 kg |
Recommended Related Models
- ABB NDSM01 – standard digital slave module
- ABB NDIS01 / NDIS02 – digital input modules
- ABB NDSO series – digital output modules
- ABB NBIM01 / NBIM02 – network interface modules
- ABB IMMFP11 / IMMFP12 – multifunction processor modules
Popular ABB Bailey Models
- INFI 90 digital I/O module family
- Bailey Harmony distributed control systems
- ABB Symphony automation platforms
- Net 90 digital signal architecture
- Industrial DCS I/O expansion modules
