Power Supply: Requires 24V DC from an isolated 24V DC on the backplane or a user – supplied source, and 5V DC from the backplane. The external supply voltage range is 20 to 30V DC with a 10% external supply voltage ripple.
Isolation: There is 1,500V isolation between the field and logic side.
Output Current Range: Can provide outputs in the ranges of 0 to 20 mA and 4 to 20 mA.
Output Voltage Range: Also supports voltage outputs in the ranges of 0 to 5V and 1 to 5V.
Resolution: The resolution of the converted signal is 12 – bit binary (1 part in 4,096).
Accuracy: At 25 °C (77 °F), the absolute accuracy is ± 8 µA for the 4 to 20 mA range and ± 10 µA for the 0 to 20 mA range.
Update Rate: Both channels are updated on every scan, approximately 5 milliseconds (application – dependent).
Load Characteristics: The maximum compliance voltage is 25V. The user load is 0 to 850 ohms in current mode, with an output load capacitance of 2,000 pF and an output load inductance of 1 H in current mode. The maximum output loading is 5 mA (2 k ohms minimum resistance).
Data Format: User data in the %AQ registers is in a 16 – bit 2’s complement format. The 13 most significant bits from the %AQ register are converted to sign magnitude by the PLC and sent to the module.
Functional Characteristics
Dual – channel Output: It has two independent output channels, each of which can convert 12 – bit binary digital data into an analog output, meeting the requirements of applications that need multiple analog current outputs.
Factory – calibrated: The module is factory – calibrated to 4 µA per count for the 4 to 20 mA range and 5 µA per count for the 0 to 20 mA range, ensuring high – accuracy output signals.
Flexible Power Supply: Can be powered by the isolated 24V DC on the backplane or a user – supplied 24V DC source, offering flexibility in power supply configuration.
Isolation Protection: The 1,500V isolation between the field and logic side can effectively prevent electrical interference and protect the safety of the system.
Output Mode Selection: For the 4 to 20 mA range, 0 count is equal to 4 mA and 32000 count is equal to 20 mA, with every 1000 additions equal to 0.5 mA. When the CPU is switched to stop mode or reset, the output can be set to default to 0/4 mA or hold the last – state by arranging the def 0/4 jumper on the detachable terminal board connector.
Application Scenarios
Industrial Process Control: Widely used in industrial production processes such as chemical, petroleum, and power industries to control parameters such as the flow, pressure, and temperature of various media by outputting analog current signals.
Machine Control: In the field of mechanical manufacturing, it can be used to control the speed, position, and force of machine tools and other equipment to ensure the accuracy and stability of machining.
Testing and Measurement: Applied in testing and measurement systems to provide accurate analog current signals for calibrating and testing various instruments and sensors.
