SPECIFICATIONS
Part No.: IC220MDL643
Manufacturer: General Electric
Series: Mark I and II
Product type: Input module
Size: 48.8mm x 120mm x 71.5mm
Connection style: 2-, 3-, and 4-wire
Operating temperature: -25oC to +55oC
Storage temperature -25oC to +85oC
Degree of protection: IP 20 according to IEC 60529
Repair: 3-5 Days
Availability: In Stock
Country of Manufacture: United States (USA)
Functional Description
IC220MDL643 is an input module developed by GE. It is a part of the Mark I and II control system. It is designed to handle 24VDC digital input signals, used in control systems. It is integral to systems requiring precise digital signal processing and monitoring.
Features
- Digital Input Processing: The module is specifically designed to accept and process 24VDC digital input signals. It provides reliable input management for control systems that demand efficient digital signal handling.
- Support for Multiple Sensors: The module supports the connection of eight digital sensors, with the capability to accommodate 2-, 3-, and 4-wire sensor configurations. This ensures flexibility in integrating a variety of sensor types into the system.
- Current Capacity: The module supports a maximum permissible load current per sensor of 250mA, while the overall module is capable of handling up to 2.0A of load current. This makes it suitable for managing systems with multiple inputs.
- Diagnostic and Status Indicators: The module is equipped with LED indicators for easy monitoring. Green LEDs indicate bus diagnostics, while yellow LEDs provide input status indications, ensuring users can quickly assess system performance and troubleshoot issues if necessary.
Input Design
- Number of Inputs: The module provides 8 discrete digital input channels, enabling the simultaneous monitoring of multiple field devices. These input channels are independently processed, ensuring accurate signal recognition and minimal cross-interference.
- Input Type: Designed in compliance with EN 61131-2, Type 1 specifications, the module guarantees reliable compatibility with standard industrial input devices, including sensors, switches, and contact closures. This classification ensures that the input behavior (such as input current and voltage thresholds) meets globally recognized industrial automation standards.
Electrical Characteristics
- Input Voltage Range: Nominal Input Voltage is 24VDC. Permissible Input Voltage ranges from -30V to +30VDC. This wide voltage range offers enhanced flexibility, protecting the module against voltage fluctuations and supporting diverse power supply conditions in industrial environments.
- Input Current: Each input channel draws a nominal current of 5mA, enabling low power consumption while maintaining signal integrity. The low current design minimizes heat generation and supports energy-efficient system operation.
Switching Thresholds
- Maximum low-level voltage: Ulmax < 5V
- Minimum high-level voltage: Uhmin > 15V
- Delay Time: No delay time is associated with input processing, ensuring real-time response to input signals.
- Permissible Cable Length: The module can accommodate cable lengths of up to 30 meters (98.4 feet) to ensure compliance with EMC directive 89/336/EEC, providing ample flexibility for system installations.
Sensor Compatibility and Connections
- The module is highly versatile in its sensor compatibility. It supports 2-, 3-, and 4-wire sensor configurations, ensuring broad applicability across different industrial systems. The module connects up to eight digital sensors, making it ideal for multi-sensor input systems.
- Additionally, it supports the use of AC sensors, although these must be within the voltage limits of the input range specified by EN 61131-2, Type 1 standards.
LED Diagnostics
- Bus Diagnostics (Green LED): Provides status updates regarding the overall communication and functioning of the module.
- Input Status (Yellow LEDs 1 and 2): Indicate the operational status of the individual inputs, offering a visual representation of input activity for easy monitoring and quick diagnostics.
Program Data
- The input module utilizes a program data structure that defines how it interacts with the control system I/O memory and communication protocols. Each module in the system is uniquely identified, and for this module, the ID code is BE (hexadecimal), equivalent to 190 in decimal. This code is essential for system configuration, ensuring that the control processor correctly identifies and communicates with the module during initialization or device scanning.
- The length code is 81 (hex), which determines the size of the module data block in the system's memory map. This value helps the control system allocate appropriate space for processing input data and streamlines data handling during runtime.
- In terms of I/O memory, it occupies 1 byte in the input address area. Each of the eight input channels corresponds to one bit within this byte, allowing efficient communication of input status using minimal memory. The output address area is not used, as this module is strictly designed for input functions, simplifying its integration in input-only roles.
- Regarding parameter configuration, the module does not use a Parameter Channel (PCP), meaning it operates with fixed parameters and requires no additional configuration data to be exchanged during operation. This makes the module particularly straightforward to set up and reliable in performance.
- Lastly, the register length on the I/O bus is 1 byte, matching the input address area. This 1-byte register encapsulates the complete state of all 8 digital input channels, enabling efficient and compact communication between the module and the control processor.
Power Consumption
- Communications power UL: 7.5V
- Current consumption from the local bus UL: 50mA, maximum
- Power consumption from the local bus UL: 0.375W, maximum
- Segment supply voltage US: 24VDC (nominal value)
- Nominal current consumption of US: 2.0A, maximum
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Frequently Asked Questions
What is IC220MDL643?
It is an Input module developed by GE
How many digital sensors connect to component?
The module can connect to up to eight digital sensors simultaneously.
What types of sensors can be connected?
The module supports 2-wire, 3-wire, and 4-wire sensors, providing flexibility in connecting various sensor types.
What is the maximum load current per sensor can component handle?
The module can handle a maximum permissible load current of 250mA per sensor.
