Comprehensive Product Summary – ADLINK NuDAM ND‑6011D High‑Gain Analog/Thermocouple Input Module

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### 1. Product Overview

Product Name: NuDAM ND‑6011D
Model: ND‑6011D
Series: NuDAM‑601X Analog Input Module Series
Article Number: 91‑21001‑101
Manufacturer: ADLINK Technology Inc., Taipei, Taiwan, R.O.C.
Product Type: High‑gain analog/thermocouple input module with LED display
Interface: RS‑485, 2‑wire serial communication
Revision: Manual Rev. 5.15 (October 2, 2001)
Status: End‑of‑Life (EOL) announced September 25, 2002

The ND‑6011D belongs to ADLINK’s NuDAM family of distributed data acquisition and control modules. It is designed for high‑precision analog signal measurement, thermocouple temperature sensing, and remote monitoring applications. The “D” suffix denotes the inclusion of a 5½‑digit LED display for direct local readout.

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### 2. Key Features

- High‑Gain Analog Input: One differential analog input channel with programmable gain and selectable voltage or current ranges.
- Thermocouple Compatibility: Direct connection to thermocouples (types J, K, T, E, R, S, B, N, C) with built‑in cold junction compensation (CJC).
- Programmable Input Ranges: ±15 mV to ±2.5 V or ±20 mA (via external 125 Ω resistor).
- High Resolution: 16‑bit A/D conversion for precise signal acquisition.
- Isolation: 2500 Vrms channel‑to‑system isolation (5000 Vrms for non‑display version).
- Digital I/O:
- 2 open‑collector digital outputs (30 V max, 50 mA sink).
- 1 digital input channel usable as event counter (up to 50 Hz).
- Alarm Functionality: Programmable high/low alarm thresholds with digital output signaling.
- Watchdog Protection:
- Internal 150 ms watchdog for module self‑monitoring.
- Host‑programmable watchdog (100 ms – 25.5 s) for communication supervision.
- Display: 5½‑digit LED display for real‑time measurement visualization.
- Ease of Integration: Software‑configurable parameters, RS‑485 networking, and simple wiring.
- Industrial Durability: Wide power input range (+10 V – +30 V DC), robust isolation, and noise immunity.

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### 3. Technical Specifications

Interface:
- Communication: RS‑485, 2‑wire half‑duplex
- Baud Rates: 1200, 2400, 4800, 9600, 19.2 k, 38.4 k, 115.2 k bps (≥ FW A4.00)
- Protocol: ASCII command/response with optional checksum

Analog Input:
- Channels: 1 differential
- Resolution: 16 bits
- Input Type: Voltage, current, or thermocouple
- Voltage Ranges: ±2.5 V, ±1 V, ±500 mV, ±100 mV, ±50 mV, ±15 mV
- Current Range: ±20 mA (via external 125 Ω resistor)
- Thermocouple Types and Ranges:
- J: 0–760 °C
- K: 0–1370 °C (FW ≥ A4.60; earlier 0–1000 °C)
- T: –100–400 °C
- E: 0–1000 °C
- R/S: 500–1750 °C
- B: 500–1800 °C
- N: –270–1300 °C
- C: 0–2320 °C
- Accuracy: ±0.4 % of full scale
- Sampling Rate: 10 Hz (typical)
- Bandwidth: 4 Hz

Digital I/O:
- Digital Inputs: 1 channel, TTL/CMOS compatible
- Logic 0 ≤ 1 V; Logic 1 = 2–30 V
- Pull‑up = 10 kΩ; Imax = 0.5 mA
- Digital Outputs: 2 open‑collector channels
- Max sink current = 50 mA @ 30 V max
- Power dissipation ≤ 300 mW

Watchdog & Safety:
- Internal watchdog: 150 ms
- Host watchdog: 100 ms – 25.5 s programmable
- Power failure threshold: 4.65 V
- Safety output state configurable

Power Requirements:
- Supply Voltage: +10 V – +30 V DC
- Consumption: 1.68 W (typical for ND‑6011D)

Isolation:
- Analog‑to‑system: 2500 Vrms (ND‑6011D)
- Communication‑to‑power: galvanically isolated

Environmental:
- Operating Temperature: 0 – 60 °C (typical industrial range)
- Storage Temperature: –20 – 80 °C
- Humidity: 0 – 95 % RH, non‑condensing

Physical:
- Mounting: DIN‑rail or panel mount
- Enclosure: Industrial plastic housing
- Dimensions/Weight: Compact modular form factor (~110 × 70 × 25 mm, < 200 g typical)

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### 4. Functionality

Operating Principle:
The ND‑6011D converts low‑level analog or thermocouple signals into digital data via a 16‑bit ADC. The built‑in cold junction compensation ensures accurate thermocouple temperature readings. The module communicates with a host controller or PC through an RS‑485 network using ASCII‑based NuDAM commands.

Use Cases:
- Industrial process monitoring and control
- Temperature measurement using thermocouples
- Precision voltage/current sensing in laboratory or automation systems
- Alarm and event monitoring with digital I/O integration
- Remote data acquisition in distributed control networks

Compatibility:
- Works with ADLINK NuDAM Administration software
- Integrates with RS‑485 converters (e.g., NuDAM‑6520)
- Compatible with other NuDAM modules (6012/D, 6013, 6014D, 6017, 6018)

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### 5. Components & Accessories

Included:
- ND‑6011D module with LED display
- Terminal block connectors for signal and power wiring
- User documentation and command reference

Optional/External:
- 125 Ω precision resistor for current measurement
- RS‑232/RS‑485 converter (NuDAM‑6520)
- External power supply (+10 – +30 V DC)
- Relay or SSR devices for digital output control
- Thermocouple probes (J, K, T, E, R, S, B, N, C types)

Pin Assignments:
1 IN+ (Analog +)
2 IN– (Analog –)
3 DO1/HI (Digital Out 1 / High Alarm)
4 DI0/EV (Digital In / Event Counter)
5 DO0/LO (Digital Out 0 / Low Alarm)
6 DEFAULT* (Initialization Pin)
7 DATA+ (RS‑485 +)
8 DATA– (RS‑485 –)
9 +Vs (+10 – +30 V DC)
10 GND
11 TC(+) (Thermocouple +)
12 TC(–) (Thermocouple –)

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### 6. Installation & Setup

Requirements:
- Host PC with RS‑232 port and RS‑485 converter
- NuDAM Administration software installed
- Power supply +10 – +30 V DC

Initialization:
1. Factory default: Address 01, 9600 bps, checksum disabled.
2. To reconfigure, short the DEFAULT* pin to GND and power ON to enter default mode (Address 00).
3. Use the Administration utility to assign a unique address, baud rate, and data format.

Network Integration:
- Connect modules in parallel on RS‑485 bus (DATA+ / DATA–).
- Ensure unique address IDs and matching baud rates.
- Power modules from a common DC supply.

Mounting:
- DIN‑rail or panel installation in industrial enclosures.
- Maintain adequate ventilation and isolation from high‑voltage sources.

Configuration Commands:
- `%` Set Configuration
- `$` Read Configuration, Module Name, Firmware Version
- `@` Alarm and Digital I/O Control
- `#` Analog Data Read/Synchronized Sampling
- `~` Watchdog and System Commands

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### 7. Performance & Capabilities

Measurement Performance:
- Resolution: 16 bits (1 part in 65,536)
- Accuracy: ±0.4 % FSR
- Sampling Rate: 10 samples/s
- Bandwidth: 4 Hz
- Input Impedance: High (> 1 MΩ typical)

Event Counter:
- 1 digital input channel, max 50 Hz counting rate
- 16‑bit counter (0 – 65535)

Digital Outputs:
- Open‑collector transistors for relay or indicator control
- Max sink current 50 mA per channel @ 30 V max

Alarm System:
- Programmable high/low thresholds
- Latch or momentary modes
- Output to DO channels for external alarm devices

Limitations:
- Single analog input channel only
- Isolation 2500 Vrms (D version)
- Not suitable for high‑frequency signals (4 Hz bandwidth)

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### 8. Standards & Compliance

- Electrical Isolation: 2500 Vrms channel‑to‑system
- Communication Standard: RS‑485 (ANSI/TIA/EIA‑485‑A)
- Safety: Designed for industrial low‑voltage DC systems
- Firmware Compatibility: Supports NuDAM command set Rev. A4.xx and above
- Environmental: Industrial temperature and humidity tolerance
- Regulatory: Complies with ADLINK internal quality and reliability standards

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### 9. Additional Information

Calibration:
- Offset and span calibration performed via software commands (`$(Addr)1` and `$(Addr)0`).
- Calibration voltages for each range (typical):
- ±15 mV → 0 mV / +15 mV
- ±2.5 V → 0 V / +2.5 V
- Thermocouple J → 0 mV / +50 mV
- CJC offset calibration resolution: 0.0153 °C per count.

Maintenance:
- Periodic calibration recommended annually.
- Keep terminals clean and dry.
- Verify RS‑485 termination and shielding in noisy environments.

Warranty:
- 1‑year limited warranty against defects in materials and workmanship.
- Excludes damage from misuse, modification, or operation beyond specifications.
- Return procedure: Prepaid shipment to ADLINK for repair or replacement.

Support Contacts:
- Website: [www.adlink.com.tw](http://www.adlink.com.tw)
- Email: service@adlink.com.tw | nudam@adlink.com.tw
- Tel: +886‑2‑8226‑5877   Fax: +886‑2‑8226‑5717
- Address: 9F, No. 166, Jian Yi Road, Chungho City, Taipei 235, Taiwan, R.O.C.

EOL Notice:
- EOL No.: 20020925‑005
- Publication Date: September 25, 2002
- Reason: Material obsolescence and product replacement.
- Replacement: None specified.
- Remaining Stock: 10 units available at EOL announcement.

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### Summary

The ADLINK NuDAM ND‑6011D is a compact, high‑gain analog and thermocouple input module engineered for precision measurement and industrial data acquisition. Featuring a 16‑bit ADC, programmable input ranges, built‑in cold junction compensation, and a 5½‑digit LED display, it provides accurate and flexible signal monitoring over RS‑485 networks. Its integrated digital I/O, alarm functions, and watchdog timers make it suitable for remote process control and safety‑critical monitoring. Although discontinued, the ND‑6011D remains a representative example of robust, software‑configurable distributed I/O technology for industrial automation systems.