The ABB Bailey NASM04 is an industrial-grade Analog Slave Module designed for use in the INFI 90 / Net 90 distributed control system (DCS). It provides reliable analog signal acquisition, transmission, and distributed I/O expansion for complex industrial automation systems.
Built for demanding process environments, the NASM04 helps ensure accurate communication between field instrumentation and central control processors. It supports stable handling of analog process variables such as temperature, pressure, flow, and level measurements, making it widely used in power plants, petrochemical facilities, oil & gas operations, and continuous manufacturing systems.
With its modular architecture and dependable long-term performance, the NASM04 remains an important component in many legacy ABB Bailey installations.
Technical Specifications
| Item | Specification |
|---|---|
| Product Type | Analog Slave Module |
| System | ABB Bailey INFI 90 / Net 90 DCS |
| Function | Analog signal acquisition and distributed I/O support |
| Supported Signals | 4–20 mA / 0–10 V DC |
| Channel Capacity | Multi-channel analog processing |
| Communication Interface | INFI 90 proprietary backplane bus |
| Signal Isolation | Electrical isolation for improved noise immunity |
| Diagnostics | Built-in communication and module status monitoring |
| Compatibility | NAMM series analog master modules |
| Processing Role | Distributed analog signal coordination |
| Mounting Type | Rack-mounted PCB module |
| Power Supply | System backplane powered |
| Operating Temperature | 0°C to 70°C |
| Humidity | 5%–95% non-condensing |
Dimensions & Weight
| Item | Value |
|---|---|
| Size (L × W × H mm) | 330 × 51 × 178 mm |
| Weight | approx. 0.5 – 1.1 kg |
Recommended Related Models
- ABB NAMM01 / NAMM02 / NAMM03 – analog master modules
- ABB NASI02 – analog slave input module
- ABB NASM01 / NASM02S – analog slave module variants
- ABB IMASI series – analog input modules
- ABB IMMFP11 / IMMFP12 – multifunction processor modules
Popular ABB Bailey Models
- INFI 90 analog slave module family
- Bailey Harmony distributed control systems
- ABB Symphony process automation platforms
- Net 90 analog I/O architecture
- Industrial DCS instrumentation modules
