The ABB Bailey NDSM03 is a high-performance Digital Slave Module designed for the INFI 90 / Net 90 distributed control system (DCS). It is engineered to expand and optimize digital input/output handling between field devices and the central control system, ensuring fast, stable, and accurate discrete signal processing.
As an upgraded generation within the NDSM family, the NDSM03 delivers improved signal response, higher channel reliability, and stronger noise immunity. It is widely used in power generation plants, oil refineries, petrochemical facilities, and large-scale industrial automation systems, where precise digital signal coordination 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 processing |
| Signal Types | 24 V DC / dry contact digital signals |
| Channel Capacity | Multi-channel high-density digital I/O |
| Interface | INFI 90 proprietary system backplane |
| Processing Role | Distributed digital signal management |
| Response Time | High-speed switching performance |
| Isolation | Enhanced channel-to-system isolation |
| Diagnostics | Advanced module health and signal monitoring |
| Compatibility | ABB Bailey processors and I/O modules |
| Module Type | Rack-mounted PCB module |
| Power Supply | System backplane powered |
| Noise Immunity | Industrial-grade electromagnetic protection |
| 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. 0.9 – 1.4 kg |
Recommended Related Models
- ABB NDSM01 / NDSM02 – digital slave modules
- 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 process automation platforms
- Net 90 digital signal architecture
- Industrial DCS I/O expansion systems
