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ABB PMKHRMRLY12S01 Auxilliary Relay Block to DIO Cable
Basic Information
Product Model: PMKHRMRLY12S01.
Product name: Auxilliary Relay Block to DIO Cable, which indicates that it is a cable for connecting an Auxilliary Relay Block (Auxiliary Relay Block) to a Digital Input/Output (DIO) device.
Functional Features
Signal transfer function
Accurate data transfer: The main function of the cable is to transfer signals accurately between the Auxiliary Relay Block and the DIO device. Both digital signals (e.g. switching signals) and analogue signals (if applicable) can be reliably transmitted via this cable. For example, in industrial automation control systems, when the status of an auxiliary relay changes (e.g. from closed to open), the signals of this change are quickly and accurately transmitted over the cable to the DIO device so that the system can react accordingly.
Anti-jamming capability: In order to ensure the accuracy of the signal during transmission, the cable may employ some anti-jamming measures. In industrial environments, there are various sources of electromagnetic interference, such as electromagnetic fields generated by motors, inverters and other equipment. This cable may be shielded by a shielding layer (e.g. metal shielding mesh) to reduce the impact of external electromagnetic interference on the signal, and also to prevent internal signals from radiating outwards to avoid interference with other equipment.
Connection compatibility
Interface adaptability at both ends: There are interfaces designed to match the auxiliary relay block and the DIO device at each end. The specifications and pinouts of these interfaces are specifically designed to meet the requirements of the connected devices to ensure good electrical connection and signal transmission. For example, the interface may use standard industrial connectors (e.g. circular or rectangular connectors) and the function of each pin (e.g. power pin, signal in/out pins, etc.) corresponds to the interface requirements of the connected device.
Device compatibility support: It is compatible with auxiliary relay blocks and DIO devices from different manufacturers that meet certain standards. This makes it more flexible in the integration process of industrial automation systems. Users can select different brands or models of devices according to their actual needs, and as long as they follow the relevant industrial standards (e.g., electrical interface standards, signal protocol standards, etc.), they can be connected via this cable.
Physical characteristics guarantee signal quality
Suitable wire diameter and material: The wire diameter and material of the cable are selected according to the requirements of the signal transmission. For lines that need to transmit large currents (e.g. control power lines for relays), thicker wires are used to reduce line resistance and prevent overheating and excessive voltage drop; for signal transmission lines, materials with good conductivity and signal transmission characteristics, such as copper conductors, are used. This ensures that the signal transmission loss in the cable is minimised and the signal quality is guaranteed.
Length Flexibility and Signal Integrity: Different length specifications are available to meet the needs of different installation distances. In terms of ensuring signal integrity, even at longer cable lengths, signal attenuation and distortion are minimised by sensible signal attenuation compensation designs (e.g. by using suitable signal drivers or receivers) or special cable configurations (e.g. twisted-pair constructions), ensuring that signals remain effective over long distances.
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