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- 15 Isolated Digital Input Channels: Each channel is optically isolated to protect against high‑voltage transients and ground loops.
- Common Power Input Design: All channels share a common external +24 V supply, simplifying wiring in industrial environments.
- High Isolation Voltage: 5000 Vrms isolation between field inputs and logic circuitry ensures robust protection against electrical noise and surges.
- RS‑485 Communication Interface: Two‑wire, half‑duplex differential signaling for long‑distance, multi‑drop networking.
- Wide Communication Speed Range: Supports baud rates from 1200 bps up to 115.2 kbps.
- Programmable Host Watchdog Timer: Automatically sets outputs to a safe state if host communication fails.
- Internal Hardware Watchdog: Monitors module operation and resets the device in case of internal malfunction.
- Compact Industrial Design: DIN‑rail or panel‑mountable ABS enclosure with screw‑terminal connectors for easy installation.
- Noise Immunity and EMI Protection: Internal shielding and coated PCB for operation in harsh industrial environments.
- Simple ASCII Command Protocol: Compatible with all NuDAM modules; easy integration with PCs, PLCs, and SCADA systems.
- Long‑Distance Networking: Up to 4000 ft (1200 m) communication distance per segment; up to 128 modules per RS‑485 bus.
- Low Power Consumption: Typical consumption of 0.216 W.
- Common Power Input Design: All channels share a common external +24 V supply, simplifying wiring in industrial environments.
- High Isolation Voltage: 5000 Vrms isolation between field inputs and logic circuitry ensures robust protection against electrical noise and surges.
- RS‑485 Communication Interface: Two‑wire, half‑duplex differential signaling for long‑distance, multi‑drop networking.
- Wide Communication Speed Range: Supports baud rates from 1200 bps up to 115.2 kbps.
- Programmable Host Watchdog Timer: Automatically sets outputs to a safe state if host communication fails.
- Internal Hardware Watchdog: Monitors module operation and resets the device in case of internal malfunction.
- Compact Industrial Design: DIN‑rail or panel‑mountable ABS enclosure with screw‑terminal connectors for easy installation.
- Noise Immunity and EMI Protection: Internal shielding and coated PCB for operation in harsh industrial environments.
- Simple ASCII Command Protocol: Compatible with all NuDAM modules; easy integration with PCs, PLCs, and SCADA systems.
- Long‑Distance Networking: Up to 4000 ft (1200 m) communication distance per segment; up to 128 modules per RS‑485 bus.
- Low Power Consumption: Typical consumption of 0.216 W.
Comprehensive Product Summary: NuDAM ND‑6054 RS‑485 Isolated 15‑Channel Digital Input Module (Common Power)
### 1. Product Overview
Product Name: NuDAM RS‑485 Isolated 15 DI Module (Common Power)
Model Number: ND‑6054
Series: NuDAM‑6000 Series – Digital I/O Modules
Article Number: ND‑6054
Manufacturer: ADLINK Technology Inc.
Product Type: RS‑485 Isolated Digital Input Module with 15 Channels (Common Power Type)
Revision Reference: NuDAM‑6000 User’s Guide, Rev. 3.00 (March 16, 2001)
The ND‑6054 is part of ADLINK’s NuDAM‑6000 family of distributed data acquisition and control modules. It is designed for industrial automation, remote monitoring, and distributed control systems requiring reliable, isolated digital input acquisition over an RS‑485 network.
### 2. Key Features
- 15 Isolated Digital Input Channels: Each channel is optically isolated to protect against high‑voltage transients and ground loops.
- Common Power Input Design: All channels share a common external +24 V supply, simplifying wiring in industrial environments.
- High Isolation Voltage: 5000 Vrms isolation between field inputs and logic circuitry ensures robust protection against electrical noise and surges.
- RS‑485 Communication Interface: Two‑wire, half‑duplex differential signaling for long‑distance, multi‑drop networking.
- Wide Communication Speed Range: Supports baud rates from 1200 bps up to 115.2 kbps.
- Programmable Host Watchdog Timer: Automatically sets outputs to a safe state if host communication fails.
- Internal Hardware Watchdog: Monitors module operation and resets the device in case of internal malfunction.
- Compact Industrial Design: DIN‑rail or panel‑mountable ABS enclosure with screw‑terminal connectors for easy installation.
- Noise Immunity and EMI Protection: Internal shielding and coated PCB for operation in harsh industrial environments.
- Simple ASCII Command Protocol: Compatible with all NuDAM modules; easy integration with PCs, PLCs, and SCADA systems.
- Long‑Distance Networking: Up to 4000 ft (1200 m) communication distance per segment; up to 128 modules per RS‑485 bus.
- Low Power Consumption: Typical consumption of 0.216 W.
### 3. Technical Specifications
| Parameter | Specification |
|----------------|------------------|
| Interface | RS‑485, 2‑wire, half‑duplex differential |
| Communication Speed | 1200, 2400, 4800, 9600, 19.2 k, 38.4 k, 57.6 k, 115.2 k bps |
| Input Channels | 15 isolated digital inputs (common power type) |
| Input Type | Optically isolated, common +24 V external supply |
| Logic Level 0 | ≤ +1 V |
| Logic Level 1 | +3.5 V – +24 V |
| Effective Distance | Up to 500 m from signal source |
| Common External Voltage | +24 V DC typical |
| Isolation Voltage | 5000 Vrms between input and logic |
| Power Supply | +10 V DC – +30 V DC (unregulated) |
| Power Consumption | 0.216 W typical |
| Watchdog Timers | Internal: 150 ms; Host programmable: 100 ms – 25.5 s |
| Power Failure Threshold | 4.65 V |
| Operating Temperature | –10 °C to +70 °C |
| Storage Temperature | –25 °C to +80 °C |
| Case Material | Industrial ABS plastic with protective coating |
| Mounting | DIN‑rail or panel mount |
| Isolation Type | Optical isolation per channel |
| Network Capacity | Up to 128 modules per RS‑485 segment; 256 with repeater |
| Dimensions / Weight | Compact modular form factor (typical NuDAM 6000 housing ~72 × 118 × 25 mm; < 200 g) |
### 4. Functionality
The ND‑6054 functions as a remote digital input acquisition module within an RS‑485 multi‑drop network. Each of its 15 channels detects the ON/OFF state of external devices such as switches, sensors, or logic signals. The module converts these discrete signals into digital data and transmits them to a host computer or controller via the RS‑485 bus using ASCII‑based commands.
Typical Use Cases:
- Industrial process monitoring (limit switches, proximity sensors, alarms)
- Building automation (door contacts, occupancy sensors)
- Machine control systems (status feedback, interlocks)
- Energy management and facility monitoring
- Distributed I/O expansion for PLCs or embedded controllers
Compatibility:
- Fully compatible with other NuDAM‑6000 modules (analog input/output, relay, counter/frequency modules)
- Communicates with host PCs, PLCs, or SCADA systems via RS‑232/RS‑485 converters (e.g., ND‑6520, ND‑6530)
- Supports ASCII command set for configuration, data readback, and diagnostics
### 5. Components & Accessories
Included Components:
- ND‑6054 module unit
- Screw‑terminal block connectors for field wiring
- Mounting hardware for DIN‑rail or panel installation
- User documentation (NuDAM‑6000 User’s Guide)
Optional Accessories:
- ND‑6520 RS‑232 to RS‑485 converter
- ND‑6510 RS‑485 repeater (for extended networks)
- ND‑6530 USB to RS‑485 converter
- Shielded twisted‑pair communication cables
- 120 Ω termination resistors for bus ends
- External +24 V DC power supply
Connectors:
- 20‑pin screw terminal block for I/O and power connections
- RS‑485 differential pair terminals (DATA+, DATA–)
- Power input terminals (+Vs, GND)
- Default* pin for initialization and configuration reset
### 6. Installation & Setup
Requirements:
- RS‑485 network wiring (shielded twisted pair recommended)
- DC power supply between +10 V and +30 V
- Host computer or controller with RS‑232/RS‑485 interface
- NuDAM Administration Utility software for configuration
Mounting Options:
- DIN‑rail mounting for control cabinets
- Panel or wall mounting using captive hardware
Configuration Procedure:
1. Initialization:
- Connect the DEFAULT* pin to GND and power on to enter default mode.
- Default settings: Address = 00, Baud = 9600 bps, Checksum = Disabled.
2. Address Assignment:
- Use the NuDAM Administration Utility or ASCII command `%` to assign a unique address (01–FF hex).
3. Network Connection:
- Connect DATA+ and DATA– lines to the RS‑485 bus.
- Install 120 Ω termination resistors at both ends of the bus.
4. Power Connection:
- Connect +Vs (10–30 V DC) and GND to a stable DC source.
5. Verification:
- Use the `$` command set to read configuration and verify communication.
Wiring Example (Common Power Inputs):
- External +24 V connected to terminal “Ext24V” (Pin 5).
- Each DI channel (DI0–DI14) connects to the return line of the external device.
- DATA+ and DATA– connect to the RS‑485 network.
- +Vs and GND supply module power.
### 7. Performance & Capabilities
- Input Response: Fast digital state detection suitable for industrial control signals.
- Isolation Protection: 5000 Vrms optical isolation prevents ground loops and protects against surges.
- Network Throughput: Up to 115.2 kbps communication speed; supports up to 128 modules per segment.
- Distance Capability: 1200 m (4000 ft) maximum cable length per RS‑485 segment.
- Reliability: Internal watchdog resets module on fault; host watchdog ensures safe output state on communication loss.
- Power Efficiency: Low consumption (0.216 W) allows dense multi‑module installations.
- Environmental Robustness: PCB conformal coating and EMI shielding for operation in humid or noisy environments.
Limitations:
- Input voltage limited to +24 V DC maximum.
- Not designed for AC signal detection.
- Requires external power for field inputs (common +24 V).
### 8. Standards & Compliance
- Communication Standard: EIA RS‑485 differential serial interface
- Isolation Standard: 5000 Vrms optical isolation between field and logic circuits
- EMC Protection: Internal shielding and transient suppression (TVS diodes)
- Safety: Designed for industrial low‑voltage DC systems
- CE Compliance: Class A industrial environment conformity
- Environmental Protection: PCB coating for humidity and chemical resistance
### 9. Additional Information
Warranty:
- One‑year limited warranty from date of purchase against defects in materials and workmanship.
- Warranty void if product is modified, misused, or operated beyond specifications.
Support & Maintenance:
- ADLINK provides technical support, firmware updates, and configuration utilities.
- Modules can be diagnosed and configured using the NuDAM Administration Utility (Windows‑based).
- Recommended periodic inspection of wiring and terminal connections in industrial environments.
Firmware & Software:
- Supports ASCII command set for configuration, data acquisition, and diagnostics.
- Compatible with NuDAM Administration Utility for Windows 95/98/NT/2000/XP/Vista/Linux.
- Firmware upgradeable via RS‑485 interface.
Safety & Handling Notes:
- Never connect or disconnect wiring while powered.
- Always use shielded twisted‑pair cables for RS‑485 communication.
- Maintain proper grounding and shielding to minimize EMI.
- Avoid installation near high‑power equipment or strong magnetic fields.
Typical Network Integration:
- Host PC → ND‑6520 (RS‑232/RS‑485 Converter) → RS‑485 Bus → ND‑6054 and other NuDAM modules.
- Up to 256 addressable modules can be managed using repeaters (ND‑6510).
Maintenance Procedures:
- Periodic verification of input channel operation using diagnostic commands (`$06` for digital input readback).
- Use the “Soft Reset” command (`$RS`) to restart the module without power cycling.
- Firmware version and module ID can be read using `$F` and `$M` commands.
Command Examples:
- Read Configuration: `$302<CR>` → returns `!30400600<CR>`
- Read Digital Inputs: `$306<CR>` → returns `!(DataInH)(DataInL)00<CR>`
- Soft Reset: `$30RS<CR>` → returns `!30<CR>`
### Summary
The ADLINK NuDAM ND‑6054 is a robust, isolated digital input module engineered for distributed industrial control systems. With 15 optically isolated channels sharing a common +24 V power source, it provides reliable signal acquisition in electrically noisy environments. Its RS‑485 interface supports long‑distance, multi‑drop networking, making it ideal for scalable automation architectures.
The module’s combination of high isolation, watchdog protection, and low power consumption ensures dependable operation in demanding industrial conditions. Integration is straightforward through ASCII command protocols and ADLINK’s NuDAM Administration software, enabling flexible deployment in SCADA, factory automation, and remote monitoring applications.
In essence, the ND‑6054 delivers industrial‑grade digital input acquisition with high isolation, network flexibility, and proven reliability within the NuDAM‑6000 distributed I/O ecosystem.
### 1. Product Overview
Product Name: NuDAM RS‑485 Isolated 15 DI Module (Common Power)
Model Number: ND‑6054
Series: NuDAM‑6000 Series – Digital I/O Modules
Article Number: ND‑6054
Manufacturer: ADLINK Technology Inc.
Product Type: RS‑485 Isolated Digital Input Module with 15 Channels (Common Power Type)
Revision Reference: NuDAM‑6000 User’s Guide, Rev. 3.00 (March 16, 2001)
The ND‑6054 is part of ADLINK’s NuDAM‑6000 family of distributed data acquisition and control modules. It is designed for industrial automation, remote monitoring, and distributed control systems requiring reliable, isolated digital input acquisition over an RS‑485 network.
### 2. Key Features
- 15 Isolated Digital Input Channels: Each channel is optically isolated to protect against high‑voltage transients and ground loops.
- Common Power Input Design: All channels share a common external +24 V supply, simplifying wiring in industrial environments.
- High Isolation Voltage: 5000 Vrms isolation between field inputs and logic circuitry ensures robust protection against electrical noise and surges.
- RS‑485 Communication Interface: Two‑wire, half‑duplex differential signaling for long‑distance, multi‑drop networking.
- Wide Communication Speed Range: Supports baud rates from 1200 bps up to 115.2 kbps.
- Programmable Host Watchdog Timer: Automatically sets outputs to a safe state if host communication fails.
- Internal Hardware Watchdog: Monitors module operation and resets the device in case of internal malfunction.
- Compact Industrial Design: DIN‑rail or panel‑mountable ABS enclosure with screw‑terminal connectors for easy installation.
- Noise Immunity and EMI Protection: Internal shielding and coated PCB for operation in harsh industrial environments.
- Simple ASCII Command Protocol: Compatible with all NuDAM modules; easy integration with PCs, PLCs, and SCADA systems.
- Long‑Distance Networking: Up to 4000 ft (1200 m) communication distance per segment; up to 128 modules per RS‑485 bus.
- Low Power Consumption: Typical consumption of 0.216 W.
### 3. Technical Specifications
| Parameter | Specification |
|----------------|------------------|
| Interface | RS‑485, 2‑wire, half‑duplex differential |
| Communication Speed | 1200, 2400, 4800, 9600, 19.2 k, 38.4 k, 57.6 k, 115.2 k bps |
| Input Channels | 15 isolated digital inputs (common power type) |
| Input Type | Optically isolated, common +24 V external supply |
| Logic Level 0 | ≤ +1 V |
| Logic Level 1 | +3.5 V – +24 V |
| Effective Distance | Up to 500 m from signal source |
| Common External Voltage | +24 V DC typical |
| Isolation Voltage | 5000 Vrms between input and logic |
| Power Supply | +10 V DC – +30 V DC (unregulated) |
| Power Consumption | 0.216 W typical |
| Watchdog Timers | Internal: 150 ms; Host programmable: 100 ms – 25.5 s |
| Power Failure Threshold | 4.65 V |
| Operating Temperature | –10 °C to +70 °C |
| Storage Temperature | –25 °C to +80 °C |
| Case Material | Industrial ABS plastic with protective coating |
| Mounting | DIN‑rail or panel mount |
| Isolation Type | Optical isolation per channel |
| Network Capacity | Up to 128 modules per RS‑485 segment; 256 with repeater |
| Dimensions / Weight | Compact modular form factor (typical NuDAM 6000 housing ~72 × 118 × 25 mm; < 200 g) |
### 4. Functionality
The ND‑6054 functions as a remote digital input acquisition module within an RS‑485 multi‑drop network. Each of its 15 channels detects the ON/OFF state of external devices such as switches, sensors, or logic signals. The module converts these discrete signals into digital data and transmits them to a host computer or controller via the RS‑485 bus using ASCII‑based commands.
Typical Use Cases:
- Industrial process monitoring (limit switches, proximity sensors, alarms)
- Building automation (door contacts, occupancy sensors)
- Machine control systems (status feedback, interlocks)
- Energy management and facility monitoring
- Distributed I/O expansion for PLCs or embedded controllers
Compatibility:
- Fully compatible with other NuDAM‑6000 modules (analog input/output, relay, counter/frequency modules)
- Communicates with host PCs, PLCs, or SCADA systems via RS‑232/RS‑485 converters (e.g., ND‑6520, ND‑6530)
- Supports ASCII command set for configuration, data readback, and diagnostics
### 5. Components & Accessories
Included Components:
- ND‑6054 module unit
- Screw‑terminal block connectors for field wiring
- Mounting hardware for DIN‑rail or panel installation
- User documentation (NuDAM‑6000 User’s Guide)
Optional Accessories:
- ND‑6520 RS‑232 to RS‑485 converter
- ND‑6510 RS‑485 repeater (for extended networks)
- ND‑6530 USB to RS‑485 converter
- Shielded twisted‑pair communication cables
- 120 Ω termination resistors for bus ends
- External +24 V DC power supply
Connectors:
- 20‑pin screw terminal block for I/O and power connections
- RS‑485 differential pair terminals (DATA+, DATA–)
- Power input terminals (+Vs, GND)
- Default* pin for initialization and configuration reset
### 6. Installation & Setup
Requirements:
- RS‑485 network wiring (shielded twisted pair recommended)
- DC power supply between +10 V and +30 V
- Host computer or controller with RS‑232/RS‑485 interface
- NuDAM Administration Utility software for configuration
Mounting Options:
- DIN‑rail mounting for control cabinets
- Panel or wall mounting using captive hardware
Configuration Procedure:
1. Initialization:
- Connect the DEFAULT* pin to GND and power on to enter default mode.
- Default settings: Address = 00, Baud = 9600 bps, Checksum = Disabled.
2. Address Assignment:
- Use the NuDAM Administration Utility or ASCII command `%` to assign a unique address (01–FF hex).
3. Network Connection:
- Connect DATA+ and DATA– lines to the RS‑485 bus.
- Install 120 Ω termination resistors at both ends of the bus.
4. Power Connection:
- Connect +Vs (10–30 V DC) and GND to a stable DC source.
5. Verification:
- Use the `$` command set to read configuration and verify communication.
Wiring Example (Common Power Inputs):
- External +24 V connected to terminal “Ext24V” (Pin 5).
- Each DI channel (DI0–DI14) connects to the return line of the external device.
- DATA+ and DATA– connect to the RS‑485 network.
- +Vs and GND supply module power.
### 7. Performance & Capabilities
- Input Response: Fast digital state detection suitable for industrial control signals.
- Isolation Protection: 5000 Vrms optical isolation prevents ground loops and protects against surges.
- Network Throughput: Up to 115.2 kbps communication speed; supports up to 128 modules per segment.
- Distance Capability: 1200 m (4000 ft) maximum cable length per RS‑485 segment.
- Reliability: Internal watchdog resets module on fault; host watchdog ensures safe output state on communication loss.
- Power Efficiency: Low consumption (0.216 W) allows dense multi‑module installations.
- Environmental Robustness: PCB conformal coating and EMI shielding for operation in humid or noisy environments.
Limitations:
- Input voltage limited to +24 V DC maximum.
- Not designed for AC signal detection.
- Requires external power for field inputs (common +24 V).
### 8. Standards & Compliance
- Communication Standard: EIA RS‑485 differential serial interface
- Isolation Standard: 5000 Vrms optical isolation between field and logic circuits
- EMC Protection: Internal shielding and transient suppression (TVS diodes)
- Safety: Designed for industrial low‑voltage DC systems
- CE Compliance: Class A industrial environment conformity
- Environmental Protection: PCB coating for humidity and chemical resistance
### 9. Additional Information
Warranty:
- One‑year limited warranty from date of purchase against defects in materials and workmanship.
- Warranty void if product is modified, misused, or operated beyond specifications.
Support & Maintenance:
- ADLINK provides technical support, firmware updates, and configuration utilities.
- Modules can be diagnosed and configured using the NuDAM Administration Utility (Windows‑based).
- Recommended periodic inspection of wiring and terminal connections in industrial environments.
Firmware & Software:
- Supports ASCII command set for configuration, data acquisition, and diagnostics.
- Compatible with NuDAM Administration Utility for Windows 95/98/NT/2000/XP/Vista/Linux.
- Firmware upgradeable via RS‑485 interface.
Safety & Handling Notes:
- Never connect or disconnect wiring while powered.
- Always use shielded twisted‑pair cables for RS‑485 communication.
- Maintain proper grounding and shielding to minimize EMI.
- Avoid installation near high‑power equipment or strong magnetic fields.
Typical Network Integration:
- Host PC → ND‑6520 (RS‑232/RS‑485 Converter) → RS‑485 Bus → ND‑6054 and other NuDAM modules.
- Up to 256 addressable modules can be managed using repeaters (ND‑6510).
Maintenance Procedures:
- Periodic verification of input channel operation using diagnostic commands (`$06` for digital input readback).
- Use the “Soft Reset” command (`$RS`) to restart the module without power cycling.
- Firmware version and module ID can be read using `$F` and `$M` commands.
Command Examples:
- Read Configuration: `$302<CR>` → returns `!30400600<CR>`
- Read Digital Inputs: `$306<CR>` → returns `!(DataInH)(DataInL)00<CR>`
- Soft Reset: `$30RS<CR>` → returns `!30<CR>`
### Summary
The ADLINK NuDAM ND‑6054 is a robust, isolated digital input module engineered for distributed industrial control systems. With 15 optically isolated channels sharing a common +24 V power source, it provides reliable signal acquisition in electrically noisy environments. Its RS‑485 interface supports long‑distance, multi‑drop networking, making it ideal for scalable automation architectures.
The module’s combination of high isolation, watchdog protection, and low power consumption ensures dependable operation in demanding industrial conditions. Integration is straightforward through ASCII command protocols and ADLINK’s NuDAM Administration software, enabling flexible deployment in SCADA, factory automation, and remote monitoring applications.
In essence, the ND‑6054 delivers industrial‑grade digital input acquisition with high isolation, network flexibility, and proven reliability within the NuDAM‑6000 distributed I/O ecosystem.