10.4.3 Analog input module AI 16 x 16 Bit
Article numbers
Standard module: 6ES7 650-8AK70-0AA0
Module with conformal coating: 6ES7 650-8AK70-1AA0
Properties
The analog input module AI 16 x 16 Bit is characterized by the following properties:
● 16 inputs and 16 outputs (for supplying of 2-wire transducers)
● HART conforming
● Resolution of 15 bits + sign (regardless of integration time)
● Setting of the transducer for each module (via a jumper at terminals 10 and 11):
– 2-wire transducer current, only in measuring range 4 ... 20 mA
– 4-wire transducer current
● Configurable measuring range for each channel, changeover to redundant 4-wire mode (via
jumper at terminals 30 and 31)
– 0 ... 20 mA
– ± 20 mA
– 4 ... 20 mA
● Configurable smoothing for each channel
● Configurable integration time/interference frequency suppression for each channel
● Configurable diagnostics
● Configurable diagnostic interrupt
● Group error display (SF LED)
● Configuration in Run (CiR) supported
Wiring and block diagrams of the AI 16 x 16 Bit with 2-wire transducer operation
If the module is used in 2-wire transducer mode, a jumper must be inserted between terminals
10 and 11. This activates the short-circuit-protected transducer supply of the module and
implements the jumpering at the analog input.
All channels of the module operate in 2-wire transducer mode in this case. This is shown in the
figure below using channel 9 as an example.
The parameter assignment is made via HW Config as “2WMT current”
The 2-wire transducer converts the measured variable to a current. The 2-wire transducers
must be isolated measuring sensors.
Through the use of L+, M for common supply of the transducers, the permitted potential
difference between the channels is revoked.
ET 200PA SMART I/O modules
10.4 Analog input modules
ET 200PA SMART
176 Operating Instructions, 06/2019, A5E34192013-AB
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