Features:
- Sixteen current inputs acquire two-wire or four-wire transmitter signals through one forty-pole connector.
- Sigma-delta conversion combines selectable integration with filtering for 10, 50, or 60 Hz interference.
- The single channel group is isolated from the backplane and supplies supported transmitters with protected 24 V DC.
Siemens 6ES7650-8AK70-0AA0 converts all sixteen field currents before transferring values to the ET 200PA SMART backplane.
Integration and smoothing on 6ES7650-8AK70-0AA0 determine how quickly a changing loop appears in the controller data.
The shared potential group of 6ES7650-8AK70-0AA0 makes common-mode and wiring limits apply across the module.
The Siemens 6ES7650-8AK70-0AA0 ET 200PA SMART 16-Channel Isolated Analog Input Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Siemens 6ES7650-8AK70-0AA0 ET 200PA SMART 16-Channel Isolated Analog Input Module Manuals,Datasheets,Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Two-Wire and Four-Wire Loops
- Channel group: Sixteen current inputs share one potential group at the front connector.
- Two-wire loop: The module can feed a supported two-wire transmitter and measure the returning loop current.
- Four-wire loop: A separately powered transmitter connects its current output to the assigned input pair.
- Cable limit: Shielded current-loop wiring may extend to the stated 800 m maximum.
Integration, Filtering and Response
- Measurement method: Sigma-delta conversion turns the selected loop current into a digital process value.
- Integration choice: Intervals of 16.6, 20, or 100 ms align rejection with 60, 50, or 10 Hz interference.
- Conversion delay: The basic conversion time follows the selected integration interval.
- Smoothing: None, low, medium, or high smoothing changes response to short signal variations.
Shared Potential and Diagnostics
- Channel relation: The sixteen inputs are not isolated from one another.
- Backplane boundary: The complete input group is electrically isolated from the backplane bus.
- Common-mode limit: Field wiring must keep channel and internal-reference differences within the stated voltage limits.
- Fault reporting: Group-error indication and readable diagnostic information expose module conditions.
Protected Sensor Supply Path
- Rated output: The module provides a 24 V DC transmitter-supply path.
- No-load level: The unloaded output is specified at 22 V DC.
- Current boundary: Transmitter supply current is limited to the documented maximum of 70 mA.
- Fault containment: Short-circuit protection limits a transmitter-supply fault before it propagates through the group.