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PD 3221 UNIVERSAL PROCESS INTERFACE, UPI
* 2 Analogue Input Channels * 1 Analogue Output Channel * 6 Digital Input/Output Channels * PID Controller * Programmable Calculator * Programmable Pulse Processor * Continuous Self test * Overload Protection * P-NET Fieldbus Communication * Watchdog Timer * DIN rail Mounting * EMC approved (89/336/EEC) APPLICATION The PD 3221 UPI module is one of a collection of distributed process control units, intended for use within the P-NET fieldbus system. It provides a versatile interface between a variety of digital and analogue process elements, such as valves, switches, pulses, lamps, alarms, motors, flowmeters, level detectors, temperature, pressure and flow transducers, etc. and distributed master control computers. Its great advantage as part of a distributed network, is that of processing the ability to operate in a local environment involving both digital and analog functions.
The PD 3221 is provided with 6 digital input/output channels, of which 2 channels can only be configured as input, 2 analogue input channels, a current output channel, an internal calculator channel and an internal pulse processor channel.
The unit offers comprehensive self-testing features, which enables reporting of disconnection, overload and process failure. All outputs are protected against overload. The digital output channels are configured to measure load current, which can be read as a value in Amps, and operation time. The selectable watchdog timer ensures the safe shut down of a process during a communications or power failure.
SPECIFICATIONS
2 Analogue Input Channels Measurement Error Resolution Voltage (0-100 mV): @ 0°C to 50°C max. 0.1% of act. 10 µV 5 µV @ -25°C to 70°C max. 0.3% of act. 10 µV 5 µV
Current (0-20/4-20 mA): @ 0°C to 50°C max. 0.1% of act. 2µV 1 µA @ -25°C to 70°C max. 0.3% of act. 2µA 1 µA
Temperature (4 Wire Pt-100): 0.19°C @ 20°C 0.05°C
Digital Input Channels: Switch Input: Volt free or nominal 24V DC Scale Drawing (in mm) Pulse proc. operation: 100 kHz max. Channel operation: 50 Hz max. Digital Output Channels: Nominal voltage: 24V DC Load current at ON (sink): max. 1.0 A
1 Analogue output Channel: Current Error: max. 0.22% of act. 19.2 µA Resolution: 15.3 µA Power Supply: Voltage: 24V DC 15% Consumption (all outp. ON) max. 3.0 W
Ambient Temperature: Operation: -25°C to +70°C Storage: -40°C to +85°C
PD 3221 is approved in compliance with the EMC-directive no 89/336/EEC. Test limits are determined by the generic standards EN 50081-1 for emission and PrEN 50082-2 for immunity. PD 3221 is approved in compliance with the IEC 68-2-6 Test Fc standard for vibration .
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