3 Device Design
3.3 Electrical Design
28 SICAM P850/P855, 7KG85xx, Device Manual
E50417-H1040-C482-A6, Edition 10.2018
3.3 Electrical Design
SICAM P850/P855 contains the following electrical modules depending on the device version:
• Digital signal processor (DSP)
• Display and Softkeys (optional)
• 4 inputs for alternating voltage measurements
• 3 inputs for alternating current measurements
• 2 binary outputs
• Supply voltage
• Ethernet interface
• Serial RS485 interface (optional)
Figure 3-3 Block Diagram SICAM P850/P855 with Display (Optional) and RS485 Interface (Optional)
4 x AC
voltage
measuring
inputs
Terminal
Power
supply
Terminal
3 x AC
current
measuring
inputs
Terminal
2 x Binary
outputs
Terminal
ADC
LED Ethernet
RS485
interface
D-Sub
DSP
DisplaySoftkeys
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