Distributed I/O System ET 200S

Analog electronics modules
4.6 2AI U Standard analog electronic module (6ES7134-4FB01-0AB0)
Run-time calibration
• 2AI U High Feature
When setting the module parameters the runtime calibration for the 2AI U High Feature
analog electronic module can be enabled to compensate for component drift resulting
from changes in the ambient temperature. During the calibration interval, the updating of
new data is delayed by 250 ms. Calibration takes place each time the ambient
temperature changes by 5 °C.
• 2AI I 2/4WIRE High Feature
When setting the module parameters a runtime calibration for the
2AI I 2/4WIRE High Feature analog electronic module can be enabled for periodic
compensation of the offset voltage drift of the A/D converter. During the calibration
interval, the updating of new data is delayed by 200 ms. The accuracy limits of the
module will be met without run-time calibration.
Reference Junction, Reference Junction Number
See Connection of thermocouples.
See also
4.6 4.6
Properties
Connecting Thermocouples (Page 4-19)
2AI U Standard analog electronic module (6ES7134-4FB01-0AB0)
General terminal assignment
• 2 inputs for measuring voltage
• Input ranges:
± 10 V, resolution 13 bits + sign
± 5 V, resolution 13 bits + sign
1 to 5 V, resolution 13 bits
• Isolated from the load voltage L+
• Permissible common mode voltage AC 2 VSS
Note
Terminals 4, 8, A4, A8, A3 and A7 are only available at specified terminal modules.
ET 200S
4-38 Manual, 12/2005, A5E00514527-03