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- 16‑Channel Digital Input: Supports both dry‑contact and wet‑contact input modes for flexible signal interfacing.
- RS‑485 Communication Interface: Two‑wire, half‑duplex differential transmission for long‑distance, noise‑immune communication.
- Multi‑Drop Networking: Up to 128 modules per RS‑485 segment, expandable to 256 with repeaters.
- Programmable Host Watchdog Timer: Ensures safe operation by switching outputs to a predefined safe state if host communication fails.
- Internal Watchdog Timer: Automatically resets the module in case of internal malfunction.
- Low Power Consumption: Typical power usage of 0.408 W for energy‑efficient operation.
- Simple ASCII Command Protocol: Uses human‑readable ASCII commands for configuration and data exchange.
- Industrial‑Grade Design: Rugged ABS enclosure with PCB coating for resistance to humidity, dust, and chemical exposure.
- DIN‑Rail or Panel Mounting: Compact form factor suitable for control cabinets and distributed I/O panels.
- Long‑Distance Communication: RS‑485 bus supports up to 1,200 m (4,000 ft) between nodes.
- Noise Immunity and Isolation: Differential signaling and internal protection circuits minimize EMI and ground‑loop interference.
- Flexible Input Wiring: Supports contact closure, transistor, or TTL‑level signal sources.
- Software Compatibility: Fully supported by ADLINK’s NuDAM Administration Utility for configuration, monitoring, and diagnostics.
- RS‑485 Communication Interface: Two‑wire, half‑duplex differential transmission for long‑distance, noise‑immune communication.
- Multi‑Drop Networking: Up to 128 modules per RS‑485 segment, expandable to 256 with repeaters.
- Programmable Host Watchdog Timer: Ensures safe operation by switching outputs to a predefined safe state if host communication fails.
- Internal Watchdog Timer: Automatically resets the module in case of internal malfunction.
- Low Power Consumption: Typical power usage of 0.408 W for energy‑efficient operation.
- Simple ASCII Command Protocol: Uses human‑readable ASCII commands for configuration and data exchange.
- Industrial‑Grade Design: Rugged ABS enclosure with PCB coating for resistance to humidity, dust, and chemical exposure.
- DIN‑Rail or Panel Mounting: Compact form factor suitable for control cabinets and distributed I/O panels.
- Long‑Distance Communication: RS‑485 bus supports up to 1,200 m (4,000 ft) between nodes.
- Noise Immunity and Isolation: Differential signaling and internal protection circuits minimize EMI and ground‑loop interference.
- Flexible Input Wiring: Supports contact closure, transistor, or TTL‑level signal sources.
- Software Compatibility: Fully supported by ADLINK’s NuDAM Administration Utility for configuration, monitoring, and diagnostics.
Comprehensive Product Summary – NuDAM ND‑6053 RS‑485 Digital 16‑Input Module
### 1. Product Overview
Product Name: NuDAM RS‑485 Digital 16‑Input Module
Model Number: ND‑6053
Series: NuDAM‑6000 Series – Digital I/O Modules
Article Number: ND‑6053
Manufacturer: ADLINK Technology Inc. (Taiwan)
The ND‑6053 is a member of ADLINK’s NuDAM‑6000 modular data acquisition and control system. It is a compact, RS‑485‑based remote digital input module designed for industrial automation, monitoring, and distributed control applications. The module provides 16 digital input channels that can accept both dry‑contact and TTL‑level wet‑contact signals. It integrates seamlessly into multi‑drop RS‑485 networks and supports up to 256 addressable modules per network segment.
### 2. Key Features
- 16‑Channel Digital Input: Supports both dry‑contact and wet‑contact input modes for flexible signal interfacing.
- RS‑485 Communication Interface: Two‑wire, half‑duplex differential transmission for long‑distance, noise‑immune communication.
- Multi‑Drop Networking: Up to 128 modules per RS‑485 segment, expandable to 256 with repeaters.
- Programmable Host Watchdog Timer: Ensures safe operation by switching outputs to a predefined safe state if host communication fails.
- Internal Watchdog Timer: Automatically resets the module in case of internal malfunction.
- Low Power Consumption: Typical power usage of 0.408 W for energy‑efficient operation.
- Simple ASCII Command Protocol: Uses human‑readable ASCII commands for configuration and data exchange.
- Industrial‑Grade Design: Rugged ABS enclosure with PCB coating for resistance to humidity, dust, and chemical exposure.
- DIN‑Rail or Panel Mounting: Compact form factor suitable for control cabinets and distributed I/O panels.
- Long‑Distance Communication: RS‑485 bus supports up to 1,200 m (4,000 ft) between nodes.
- Noise Immunity and Isolation: Differential signaling and internal protection circuits minimize EMI and ground‑loop interference.
- Flexible Input Wiring: Supports contact closure, transistor, or TTL‑level signal sources.
- Software Compatibility: Fully supported by ADLINK’s NuDAM Administration Utility for configuration, monitoring, and diagnostics.
### 3. Technical Specifications
| Parameter | Specification |
|----------------|-------------------|
| Interface | RS‑485, 2‑wire, half‑duplex differential |
| Communication Speed | 1,200 bps – 115.2 kbps |
| Maximum Bus Distance | 1,200 m (4,000 ft) |
| Maximum Modules per Bus | 128 (256 with repeater ND‑6510) |
| Input Channels | 16 digital inputs |
| Input Type | Dry contact or TTL wet contact |
| Dry Contact Logic | Logic 0 = closed to GND; Logic 1 = open |
| Wet Contact Logic | TTL‑level input; Logic 0 ≤ 0.8 V; Logic 1 ≥ 2.4 V |
| Maximum Input Current | 50 mA (wet contact mode) |
| Isolation Voltage | Internal photo‑isolation between logic and communication circuits |
| Power Supply | +10 V DC to +30 V DC (unregulated) |
| Power Consumption | 0.408 W typical |
| Watchdog Timers | Internal = 150 ms; Host‑programmable = 100 ms – 25.5 s |
| Power Failure Threshold | 4.65 V DC |
| 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 wall‑mount |
| Dimensions / Weight | Compact modular enclosure (approx. 72 × 118 × 25 mm; ~150 g typical) |
| Compliance | CE Class A, EIA RS‑485 standard |
### 4. Functionality
The ND‑6053 functions as a remote digital input acquisition node within an RS‑485 network. Each input channel can detect the ON/OFF state of external devices such as switches, sensors, relays, or TTL logic outputs. The module converts these discrete signals into digital data and transmits them to a host controller or PC via the RS‑485 bus using ASCII‑based commands.
Operating Modes:
- Dry‑Contact Mode: Detects mechanical switch closures or relay contacts without external voltage.
- Wet‑Contact Mode: Accepts TTL‑level voltage signals from logic circuits or sensors.
Typical Applications:
- Industrial process monitoring (limit switches, alarms, interlocks)
- Building automation (door sensors, occupancy detection)
- Machine status monitoring and event logging
- Distributed control systems (DCS) and SCADA networks
- Remote I/O expansion for PLCs or embedded controllers
Compatibility:
- Works with ADLINK ND‑6520 (RS‑232 ↔ RS‑485 converter), ND‑6530 (USB ↔ RS‑485 converter), and ND‑6510 (RS‑485 repeater).
- Fully compatible with other NuDAM‑6000 modules (analog input/output, relay, counter).
- Communicates via standard RS‑485 ASCII protocol; easily integrated with custom software or third‑party SCADA systems.
### 5. Components & Accessories
Included Components:
- ND‑6053 module unit
- 20‑pin removable screw‑terminal block for field wiring
- Quick‑start and wiring documentation
Optional Accessories:
- ND‑6520 RS‑232 ↔ RS‑485 converter (for PC connection)
- ND‑6530 USB ↔ RS‑485 converter
- ND‑6510 RS‑485 repeater (for long networks)
- Shielded twisted‑pair communication cable (120 Ω characteristic impedance)
- 120 Ω ± 2 % termination resistors for bus ends
- DIN‑rail mounting clips and panel brackets
Connectors & Pin Assignments:
| Pin | Signal | Description |
|----------|-------------|-----------------|
| 1–5 | DI10 – DI14 | Digital input channels 10–14 |
| 6 | Default*/DI15 | Default‑state pin or input 15 |
| 7 | (Y) DATA+ | RS‑485 differential positive |
| 8 | (G) DATA– | RS‑485 differential negative |
| 9 | (R) +Vs | Power input +10 V – +30 V |
| 10 | (B) GND | Power ground |
| 11–20 | DI0 – DI9 | Digital input channels 0–9 |
### 6. Installation & Setup
Requirements:
- Host computer or controller with RS‑232/USB port and NuDAM converter (ND‑6520/ND‑6530).
- DC power supply +10 V – +30 V DC, 0.5 A min.
- Shielded twisted‑pair cable for RS‑485 communication.
- Termination resistors (120 Ω ± 2 %) at both ends of the bus.
Mounting Options:
- DIN‑rail mounting in control cabinets.
- Wall or back‑panel mounting using screws.
Configuration Procedure:
1. Initialization:
- Each new module ships with default settings: Address = 01 h, Baud = 9600 bps, Checksum = disabled, Watchdog = disabled.
- To change configuration, short the DEFAULT* pin to GND and power on to enter Default State (Address 00).
2. Address & Baud Setup:
- Use the NuDAM Administration Utility or ASCII command `%` to assign a unique address (00–FF h) and desired baud rate (1.2 – 115.2 kbps).
3. Network Wiring:
- Connect DATA+ and DATA– lines in daisy‑chain topology.
- Apply 120 Ω termination resistors at both ends.
- Connect shield to protective earth at multiple points.
4. Power Connection:
- Supply +10 V – +30 V DC to pins 9 (+Vs) and 10 (GND).
5. Verification:
- Use the NuDAM utility to search and verify module communication.
- Test digital inputs by toggling external switches or TTL signals.
Wiring Examples:
- Dry Contact: Connect switch between DI n and GND.
- Wet Contact (TTL): Apply +5 V logic through 10 kΩ pull‑up resistor to DI n.
- Contact Closure: Connect relay or push‑button between DI n and GND.
### 7. Performance & Capabilities
- Input Response Time: Typical debounce < 1 ms (depends on signal source).
- Signal Distance: Up to 500 m between input contact and module for dry‑contact mode.
- Network Capacity: Up to 256 addressable modules (128 per segment).
- Communication Protocol: ASCII command/response; checksum optional.
- Data Throughput: Up to 115.2 kbps; typical command latency < 10 ms.
- Reliability: Internal watchdog resets on fault; host watchdog ensures safe state on communication loss.
- Power Efficiency: 0.408 W consumption enables dense multi‑node installations.
- Limitations: No analog measurement capability; input channels are read‑only; external isolation recommended for high‑voltage field wiring.
### 8. Standards & Compliance
- Electrical Interface: EIA RS‑485 standard (balanced differential transmission).
- Isolation & Protection: Photo‑isolated communication circuitry; transient suppression and thermal shutdown protection.
- EMC & Safety: CE Class A compliant; designed for industrial environments with EMI shielding and PCB coating.
- Environmental Protection: Conformal coating for humidity and chemical resistance.
- Network Topology: Supports simple, branch, or free topology with proper termination and shielding.
- Regulatory Notes:
- Termination resistor Rt = 120 Ω ± 2 %.
- Shielded twisted‑pair cable recommended (AWG 22–26).
- Grounding and shielding per EIA RS‑485 best practices.
### 9. Additional Information
Warranty:
ADLINK provides a one‑year limited warranty from the date of purchase, covering defects in materials and workmanship. The warranty excludes damage due to misuse, modification, or operation beyond specified limits. Liability is limited to repair or replacement of the defective unit.
Support & Maintenance:
- Technical support and firmware updates available via ADLINK’s website.
- NuDAM Administration Utility software supports configuration, diagnostics, and calibration.
- Modules should be installed away from strong electromagnetic fields and high‑power equipment.
- Use stable DC power sources; avoid connecting or disconnecting terminals while powered.
- Periodic inspection of wiring and terminal tightness is recommended.
Service & Returns:
Units requiring service must be returned prepaid and properly packaged. Proof of purchase is required for warranty service.
Software Tools:
- NuDAM Administration Utility: Windows‑based configuration and monitoring tool.
- Functions: network search, terminal command mode, configuration editor, diagnostics, calibration, and batch operations.
- Default communication settings: COM2, 9600 bps, 8 data bits, 1 stop bit, no parity.
Firmware & Command Set:
- Supports full NuDAM ASCII command set for configuration, reading input states, and watchdog control.
- Example command:
- `$(Addr)6<CR>` → Reads digital input status.
- Response: `!(DataInH)(DataInL)00<CR>` (two bytes represent 16 input bits).
- Checksum and baud rate configurable via `%` command.
### Summary
The ADLINK NuDAM ND‑6053 is a robust, low‑power, 16‑channel digital input module engineered for distributed data acquisition over RS‑485 networks. It provides reliable detection of discrete signals in industrial and building automation systems, offering flexible input modes, watchdog protection, and straightforward ASCII‑based communication. Its rugged design, long‑distance communication capability, and seamless integration with other NuDAM‑6000 modules make it an ideal choice for scalable, networked monitoring and control applications.
### 1. Product Overview
Product Name: NuDAM RS‑485 Digital 16‑Input Module
Model Number: ND‑6053
Series: NuDAM‑6000 Series – Digital I/O Modules
Article Number: ND‑6053
Manufacturer: ADLINK Technology Inc. (Taiwan)
The ND‑6053 is a member of ADLINK’s NuDAM‑6000 modular data acquisition and control system. It is a compact, RS‑485‑based remote digital input module designed for industrial automation, monitoring, and distributed control applications. The module provides 16 digital input channels that can accept both dry‑contact and TTL‑level wet‑contact signals. It integrates seamlessly into multi‑drop RS‑485 networks and supports up to 256 addressable modules per network segment.
### 2. Key Features
- 16‑Channel Digital Input: Supports both dry‑contact and wet‑contact input modes for flexible signal interfacing.
- RS‑485 Communication Interface: Two‑wire, half‑duplex differential transmission for long‑distance, noise‑immune communication.
- Multi‑Drop Networking: Up to 128 modules per RS‑485 segment, expandable to 256 with repeaters.
- Programmable Host Watchdog Timer: Ensures safe operation by switching outputs to a predefined safe state if host communication fails.
- Internal Watchdog Timer: Automatically resets the module in case of internal malfunction.
- Low Power Consumption: Typical power usage of 0.408 W for energy‑efficient operation.
- Simple ASCII Command Protocol: Uses human‑readable ASCII commands for configuration and data exchange.
- Industrial‑Grade Design: Rugged ABS enclosure with PCB coating for resistance to humidity, dust, and chemical exposure.
- DIN‑Rail or Panel Mounting: Compact form factor suitable for control cabinets and distributed I/O panels.
- Long‑Distance Communication: RS‑485 bus supports up to 1,200 m (4,000 ft) between nodes.
- Noise Immunity and Isolation: Differential signaling and internal protection circuits minimize EMI and ground‑loop interference.
- Flexible Input Wiring: Supports contact closure, transistor, or TTL‑level signal sources.
- Software Compatibility: Fully supported by ADLINK’s NuDAM Administration Utility for configuration, monitoring, and diagnostics.
### 3. Technical Specifications
| Parameter | Specification |
|----------------|-------------------|
| Interface | RS‑485, 2‑wire, half‑duplex differential |
| Communication Speed | 1,200 bps – 115.2 kbps |
| Maximum Bus Distance | 1,200 m (4,000 ft) |
| Maximum Modules per Bus | 128 (256 with repeater ND‑6510) |
| Input Channels | 16 digital inputs |
| Input Type | Dry contact or TTL wet contact |
| Dry Contact Logic | Logic 0 = closed to GND; Logic 1 = open |
| Wet Contact Logic | TTL‑level input; Logic 0 ≤ 0.8 V; Logic 1 ≥ 2.4 V |
| Maximum Input Current | 50 mA (wet contact mode) |
| Isolation Voltage | Internal photo‑isolation between logic and communication circuits |
| Power Supply | +10 V DC to +30 V DC (unregulated) |
| Power Consumption | 0.408 W typical |
| Watchdog Timers | Internal = 150 ms; Host‑programmable = 100 ms – 25.5 s |
| Power Failure Threshold | 4.65 V DC |
| 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 wall‑mount |
| Dimensions / Weight | Compact modular enclosure (approx. 72 × 118 × 25 mm; ~150 g typical) |
| Compliance | CE Class A, EIA RS‑485 standard |
### 4. Functionality
The ND‑6053 functions as a remote digital input acquisition node within an RS‑485 network. Each input channel can detect the ON/OFF state of external devices such as switches, sensors, relays, or TTL logic outputs. The module converts these discrete signals into digital data and transmits them to a host controller or PC via the RS‑485 bus using ASCII‑based commands.
Operating Modes:
- Dry‑Contact Mode: Detects mechanical switch closures or relay contacts without external voltage.
- Wet‑Contact Mode: Accepts TTL‑level voltage signals from logic circuits or sensors.
Typical Applications:
- Industrial process monitoring (limit switches, alarms, interlocks)
- Building automation (door sensors, occupancy detection)
- Machine status monitoring and event logging
- Distributed control systems (DCS) and SCADA networks
- Remote I/O expansion for PLCs or embedded controllers
Compatibility:
- Works with ADLINK ND‑6520 (RS‑232 ↔ RS‑485 converter), ND‑6530 (USB ↔ RS‑485 converter), and ND‑6510 (RS‑485 repeater).
- Fully compatible with other NuDAM‑6000 modules (analog input/output, relay, counter).
- Communicates via standard RS‑485 ASCII protocol; easily integrated with custom software or third‑party SCADA systems.
### 5. Components & Accessories
Included Components:
- ND‑6053 module unit
- 20‑pin removable screw‑terminal block for field wiring
- Quick‑start and wiring documentation
Optional Accessories:
- ND‑6520 RS‑232 ↔ RS‑485 converter (for PC connection)
- ND‑6530 USB ↔ RS‑485 converter
- ND‑6510 RS‑485 repeater (for long networks)
- Shielded twisted‑pair communication cable (120 Ω characteristic impedance)
- 120 Ω ± 2 % termination resistors for bus ends
- DIN‑rail mounting clips and panel brackets
Connectors & Pin Assignments:
| Pin | Signal | Description |
|----------|-------------|-----------------|
| 1–5 | DI10 – DI14 | Digital input channels 10–14 |
| 6 | Default*/DI15 | Default‑state pin or input 15 |
| 7 | (Y) DATA+ | RS‑485 differential positive |
| 8 | (G) DATA– | RS‑485 differential negative |
| 9 | (R) +Vs | Power input +10 V – +30 V |
| 10 | (B) GND | Power ground |
| 11–20 | DI0 – DI9 | Digital input channels 0–9 |
### 6. Installation & Setup
Requirements:
- Host computer or controller with RS‑232/USB port and NuDAM converter (ND‑6520/ND‑6530).
- DC power supply +10 V – +30 V DC, 0.5 A min.
- Shielded twisted‑pair cable for RS‑485 communication.
- Termination resistors (120 Ω ± 2 %) at both ends of the bus.
Mounting Options:
- DIN‑rail mounting in control cabinets.
- Wall or back‑panel mounting using screws.
Configuration Procedure:
1. Initialization:
- Each new module ships with default settings: Address = 01 h, Baud = 9600 bps, Checksum = disabled, Watchdog = disabled.
- To change configuration, short the DEFAULT* pin to GND and power on to enter Default State (Address 00).
2. Address & Baud Setup:
- Use the NuDAM Administration Utility or ASCII command `%` to assign a unique address (00–FF h) and desired baud rate (1.2 – 115.2 kbps).
3. Network Wiring:
- Connect DATA+ and DATA– lines in daisy‑chain topology.
- Apply 120 Ω termination resistors at both ends.
- Connect shield to protective earth at multiple points.
4. Power Connection:
- Supply +10 V – +30 V DC to pins 9 (+Vs) and 10 (GND).
5. Verification:
- Use the NuDAM utility to search and verify module communication.
- Test digital inputs by toggling external switches or TTL signals.
Wiring Examples:
- Dry Contact: Connect switch between DI n and GND.
- Wet Contact (TTL): Apply +5 V logic through 10 kΩ pull‑up resistor to DI n.
- Contact Closure: Connect relay or push‑button between DI n and GND.
### 7. Performance & Capabilities
- Input Response Time: Typical debounce < 1 ms (depends on signal source).
- Signal Distance: Up to 500 m between input contact and module for dry‑contact mode.
- Network Capacity: Up to 256 addressable modules (128 per segment).
- Communication Protocol: ASCII command/response; checksum optional.
- Data Throughput: Up to 115.2 kbps; typical command latency < 10 ms.
- Reliability: Internal watchdog resets on fault; host watchdog ensures safe state on communication loss.
- Power Efficiency: 0.408 W consumption enables dense multi‑node installations.
- Limitations: No analog measurement capability; input channels are read‑only; external isolation recommended for high‑voltage field wiring.
### 8. Standards & Compliance
- Electrical Interface: EIA RS‑485 standard (balanced differential transmission).
- Isolation & Protection: Photo‑isolated communication circuitry; transient suppression and thermal shutdown protection.
- EMC & Safety: CE Class A compliant; designed for industrial environments with EMI shielding and PCB coating.
- Environmental Protection: Conformal coating for humidity and chemical resistance.
- Network Topology: Supports simple, branch, or free topology with proper termination and shielding.
- Regulatory Notes:
- Termination resistor Rt = 120 Ω ± 2 %.
- Shielded twisted‑pair cable recommended (AWG 22–26).
- Grounding and shielding per EIA RS‑485 best practices.
### 9. Additional Information
Warranty:
ADLINK provides a one‑year limited warranty from the date of purchase, covering defects in materials and workmanship. The warranty excludes damage due to misuse, modification, or operation beyond specified limits. Liability is limited to repair or replacement of the defective unit.
Support & Maintenance:
- Technical support and firmware updates available via ADLINK’s website.
- NuDAM Administration Utility software supports configuration, diagnostics, and calibration.
- Modules should be installed away from strong electromagnetic fields and high‑power equipment.
- Use stable DC power sources; avoid connecting or disconnecting terminals while powered.
- Periodic inspection of wiring and terminal tightness is recommended.
Service & Returns:
Units requiring service must be returned prepaid and properly packaged. Proof of purchase is required for warranty service.
Software Tools:
- NuDAM Administration Utility: Windows‑based configuration and monitoring tool.
- Functions: network search, terminal command mode, configuration editor, diagnostics, calibration, and batch operations.
- Default communication settings: COM2, 9600 bps, 8 data bits, 1 stop bit, no parity.
Firmware & Command Set:
- Supports full NuDAM ASCII command set for configuration, reading input states, and watchdog control.
- Example command:
- `$(Addr)6<CR>` → Reads digital input status.
- Response: `!(DataInH)(DataInL)00<CR>` (two bytes represent 16 input bits).
- Checksum and baud rate configurable via `%` command.
### Summary
The ADLINK NuDAM ND‑6053 is a robust, low‑power, 16‑channel digital input module engineered for distributed data acquisition over RS‑485 networks. It provides reliable detection of discrete signals in industrial and building automation systems, offering flexible input modes, watchdog protection, and straightforward ASCII‑based communication. Its rugged design, long‑distance communication capability, and seamless integration with other NuDAM‑6000 modules make it an ideal choice for scalable, networked monitoring and control applications.