- Digital Source or Sink I/Os for nominal 24 volt
- Push-pull output
- Programmable in COPP
- P-NET via Light-Link
- Built-in input and output functions
- Load current measurement
- Overload/Underload protection and Alarming
- Line Check
- Advanced internal self testing
- LED for power On and Error indication
- Wide Power Supply range
- Wide Temperature range
- Low Power Consumption
PD 820 is a device in the M100 series with digital I/O channels. The device offers 15 channels as interface for various types of process signals, valves, pumps, level detectors, actuators etc. and push-pull outputs for direct motor control.
The 15 channels consist of:
– 15 digital inputs/outputs, whereof one channel can operate as fast digital input.
Digital inputs can be configured to perform Line Check.
The Line Check function can be used in relation to two-wire proximity switches. In case of error the hardware will report either ‘Line open’ or ‘Line short-circuited’ respectively.
The device is programmable in COPP, which means that a part of, or complete automation application can be built and downloaded by the user. The program can make use of ready-made components to control and monitor any process or machine application, both locally in the device but also via the network interacting with other devices.
All output channels can source a positive voltage to external loads relative to the common negative supply voltage, or can sink current from the load to ground.
All channels are protected against overload and short-circuit and notification can be enabled on any disconnection or process failure. The supply current for the device must be limited (with a fuse). The total current for all outputs on the device is limited to 5 A.
The PD 820 can be used with the BM 104 base module.
PD 820 can alternatively be used with the BM 105 base module that also provides a separate terminal block for connections to relays. This will enable the PD 820 to use 9 digital inputs/outputs and 6 individual potential free relay outputs.
The device can be fixed to the base module by means of a screw.
Digital Inputs (referenced to -24 Vin)
Frequency: Max. 1 kHz @ 50% duty cycle
Input On: Vin < 4.5 V, Off: Vin > 6.5 V
Hysteresis: Typ. 1 V
Line check: (*
Line open voltage: > 0.75 * Vin
Line short circuit voltage: < 2 V
Input pull down resistance: 6.8 kΩ
Input active pull up (configurable): 3 mA
Fast Mode Digital Input: (referenced to -24 Vin) (*
Frequency: Max. 50 kHz @ 50 % duty cycle
Input voltage Off: 2.5 V + Hys/2
Input voltage On: 2.5 V – Hys/2
Hysteresis (Hys): Typ. 1.0 V
Digital Outputs (source)
Oneshot and Dutycycle time resolution: 417 µs
Internal resistance: Typ. 0.5 Ω
Output start current (duration max 200 ms): Typ. 5 A
Load current at ON (Source only): Max. 1.0 A
Short circuit cutoff delay time (current > 5 A): 104 µs
Leak current at OFF: Max. 500 µA
Load Current Measurements
Range: 10 A
Accuracy: Min. 2.5 %, +/-25 mA
Resolution: 5 mA
Repeatability: Min. 1 %, +/- 25 mA
Supply voltage nominal: 24 VDC
Supply voltage: 12-32 VDC
Typ. internal power consumption (@ 24 VDC): 0.5 W
Max. power consumption (@ 24 VDC): 2.5 W
Operation temperature: -25 °C to +70 °C
Storage temperature: -40 °C to +85 °C
Relative humidity: < 95 % RH (non-cond.)
Protection class: IP40
(* Use shielded cable