Comprehensive Product Summary – EX9036 Analog Input RTD Module

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### 1. Product Overview

Product Name: EX9036 Analog Input Module
Model: EX9036
Series: EX-9000 Series Data Acquisition Modules
Article Number: EX9036
Manufacturer: ICP DAS / TOPSCCC (Industrial Control Products Division)

The EX9036 is a high-precision, 6-channel analog input module designed for direct connection to RTD (Resistance Temperature Detector) sensors. It forms part of the EX-9000 modular data acquisition and control system, providing accurate temperature measurement and monitoring capabilities over an RS-485 communication interface. The module supports multiple RTD types, including platinum, nickel, and copper sensors, and offers flexible wiring configurations (2-, 3-, or 4-wire). It is engineered for industrial environments requiring reliable, isolated, and noise-immune temperature data acquisition.

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### 2. Key Features

- 6 Analog Input Channels: Each channel supports RTD sensors for temperature measurement.
- High Resolution: 16-bit analog-to-digital conversion ensures precise temperature readings.
- Sampling Rate: 12 samples per second (12 Hz) for stable and accurate data acquisition.
- Wide RTD Compatibility: Supports Pt100, Pt1000, Ni120, Cu100, Cu1000, and Cu50 sensors with various α coefficients (0.00385, 0.003916, 0.00421, 0.00427, etc.).
- 2/3/4-Wire RTD Support: Flexible wiring options for different installation requirements.
- Open Loop (Break Line) Detection: Automatically detects sensor disconnection or wiring faults.
- Offset Function: Allows per-channel offset adjustment via the EX-9000 Utility software.
- 60 Hz Noise Rejection: Built-in digital filtering for power line interference suppression.
- 3000 VDC Isolation: Galvanic isolation between channels and communication interface for safety and noise immunity.
- RS-485 Communication Interface: Supports Modbus-like ASCII command set for integration into distributed control systems.
- Wide Power Supply Range: Operates from +10 to +30 VDC, suitable for industrial power systems.
- Rugged Design: Operates reliably in harsh environments with wide temperature tolerance.
- Manual or Software Configuration: Parameters can be set via commands or configuration utility.
- Compact Form Factor: Designed for DIN-rail or panel mounting in control cabinets.

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### 3. Technical Specifications

Analog Input:
- Channels: 6 independent RTD input channels
- Input Type: 2-, 3-, or 4-wire RTD (Channels 0–2 support 2/3/4-wire; Channels 3–5 support 2/3-wire)
- Supported RTD Types:
- Pt100 (α = 0.00385 and 0.003916)
- Pt1000 (α = 0.00385)
- Ni120 (α = 0.00672)
- Cu100 (α = 0.00421 and 0.00427)
- Cu1000 (α = 0.00421)
- Cu50 (α = 0.00421)
- Resolution: 16-bit
- Sampling Rate: 12 samples/sec
- Bandwidth: 5.24 Hz
- Accuracy: ±0.05% of full scale
- Zero Drift: 0.5 µV/°C
- Span Drift: 20 µV/°C
- Common Mode Rejection (CMR): ≥150 dB @ 50/60 Hz
- Normal Mode Rejection (NMR): ≥100 dB @ 50/60 Hz
- Input Impedance: High impedance suitable for RTD measurement
- Isolation Voltage: 3000 VDC inter-module isolation

Power:
- Supply Voltage: +10 to +30 VDC
- Power Consumption: 1.1 W typical

Environmental:
- Operating Temperature: -25°C to +75°C
- Storage Temperature: -30°C to +75°C
- Warm-Up Time: 30 minutes recommended for optimal accuracy

Physical:
- Material: Industrial-grade ABS enclosure
- Mounting: DIN-rail or panel mount
- Wiring: Screw terminal connectors
- Recommended Wire Gauge: 26–12 AWG for signal; shielded twisted pair for RS-485 (e.g., Belden 9841)

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### 4. Functionality

The EX9036 functions as a precision RTD input module that converts resistance changes from temperature sensors into digital data transmitted via RS-485. Each channel measures the resistance of the connected RTD element, compensates for lead wire resistance (in 3- and 4-wire configurations), and outputs temperature or resistance values in selectable formats.

Supported Data Formats:
- Engineering units (°C)
- Percentage of full-scale range (%FSR)
- 2’s complement hexadecimal
- Ohms (Ω)

Use Cases and Applications:
- Industrial temperature monitoring and control
- Process automation and SCADA systems
- Laboratory and environmental testing
- HVAC and building management systems
- Energy management and power plant monitoring
- Food, chemical, and pharmaceutical process control

Compatibility:
- Compatible with EX-9000 series modules and software utilities
- Communicates over RS-485 using ASCII-based command protocol
- Integrates with PLCs, HMIs, and SCADA systems supporting Modbus/ASCII communication

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### 5. Components & Accessories

Included Items:
- EX9036 module unit
- Terminal block connectors for signal and power wiring
- User manual and configuration software (EX-9000 Utility)
- CD or online documentation with wiring diagrams and command references

Optional Accessories:
- RS-485 communication cables (Belden 9841 or equivalent)
- DIN-rail mounting clips
- External power supply (10–30 VDC)
- Calibration resistors for zero and span calibration
- Shielded twisted-pair signal cables for noise immunity

Connectors:
- Screw-type terminals for RTD inputs
- RS-485 communication terminals (D+, D–, GND)
- Power input terminals (+Vs, GND)
- INIT* terminal for configuration reset and baud rate changes

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### 6. Installation & Setup

Requirements:
- DC power supply (10–30 VDC)
- RS-485 network connection
- Properly shielded RTD wiring

Mounting Options:
- DIN-rail mounting in control panels
- Panel or wall mounting using brackets

Wiring Guidelines:
- Use shielded cables for each RTD channel; connect shielding to A.GND terminal
- For RS-485, use twisted pair 24 AWG cable (e.g., Belden 9841)
- Maintain consistent grounding to minimize noise
- Channels 0–2 support 2/3/4-wire RTD; Channels 3–5 support 2/3-wire RTD only

Configuration:
- Default module address: 01
- Default RTD type: Pt100, -100°C to +100°C (Type 20)
- Default baud rate: 9600 bps
- Checksum: Disabled
- Filter: 60 Hz rejection
- Data format: Engineering units

Setup Procedure:
1. Connect power and RS-485 communication lines.
2. Wire RTD sensors according to the wiring diagram.
3. Configure module address, baud rate, and RTD type using EX-9000 Utility or ASCII commands.
4. Perform calibration if required (zero and span).
5. Verify communication and data output.

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### 7. Performance & Capabilities

Measurement Performance:
- High accuracy (±0.05%) and stability due to 24-bit sigma-delta ADC architecture.
- Excellent noise immunity with 150 dB CMR and 100 dB NMR.
- 60 Hz rejection filter minimizes interference from power lines.
- Supports synchronized sampling across multiple modules for time-aligned data acquisition.

Speed and Throughput:
- 12 samples per second per channel (aggregate throughput suitable for slow-changing temperature processes).

Capacity:
- Up to 6 RTD sensors per module; multiple modules can be networked via RS-485 for large-scale systems.

Efficiency:
- Low power consumption (1.1 W typical) allows dense installation in distributed systems.

Limitations:
- Channels 3–5 limited to 2/3-wire RTD connections (no 4-wire support).
- Warm-up period required for best accuracy.
- Calibration should only be performed by trained personnel.

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### 8. Standards & Compliance

Electrical and Safety:
- 3000 VDC isolation between input and communication circuits
- Designed for industrial EMC environments

Regulatory Compliance:
- CE compliant (EMC and Low Voltage Directives)
- RoHS compliant (lead-free construction)

Industry Standards:
- RS-485 serial communication standard
- Compatible with Modbus/ASCII protocol conventions
- Meets industrial temperature and vibration standards for field devices

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### 9. Additional Information

Calibration:
- Supports both zero and span calibration using external precision resistors.
- Calibration commands available via ASCII protocol ($AA0, $AA1, etc.).
- Warm-up for 30 minutes before calibration recommended.

Firmware & Software:
- Firmware version readable via command ($AAF).
- Module name and configuration can be read or set via commands ($AAM, ~AAO).
- EX-9000 Utility software provides graphical configuration and monitoring interface.

Diagnostics & Monitoring:
- Built-in diagnostic command ($AAB) detects over-range, under-range, and open-loop conditions.
- Host watchdog timer with configurable timeout (0.1–25.5 seconds).
- LED indicators for power, communication, and watchdog status.

Maintenance:
- Minimal maintenance required; periodic calibration recommended.
- Ensure clean, dry environment and proper grounding for long-term reliability.

Warranty & Support:
- Standard manufacturer warranty (typically 1–2 years, depending on region).
- Technical support and firmware updates available via manufacturer’s website (topsccc.com or ICP DAS support portal).
- Replacement parts and accessories available through authorized distributors.

Product Lifecycle & Updates:
- Part of the EX-9000 modular system, ensuring long-term availability and compatibility with future modules.
- Firmware updates may introduce new RTD types or improved filtering algorithms.

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### Summary

The EX9036 Analog Input RTD Module is a robust, high-precision data acquisition device tailored for industrial temperature measurement applications. With six isolated input channels, 16-bit resolution, and support for a wide range of RTD sensors, it delivers reliable and accurate temperature data in demanding environments. Its RS-485 communication interface, flexible configuration options, and comprehensive command set make it ideal for integration into distributed control systems, SCADA networks, and process automation setups. The module’s 3000 VDC isolation, 60 Hz noise rejection, and open-loop detection ensure dependable operation even in electrically noisy industrial conditions.

Engineered for performance, flexibility, and durability, the EX9036 stands as a versatile solution for multi-channel temperature monitoring in industrial automation, laboratory instrumentation, and environmental control systems.