Analog electronic modules
4.5 Parameters for analog electronic modules
ET 200S
Manual, Edition 10/2005, A5E00514527-01
4-33
Temperature coefficient
The correction factor for the temperature coefficient (α-value) specifies how much the
resistance of a certain material changes when the temperature is raised by 1° C.
The temperature coefficient depends on the chemical composition of the material. Only one
value is used in Europe for each type of sensor (default value).
Additional values enable you to make a sensor-specific setting for the temperature
coefficient, therefore ensuring more accuracy.
See also
Connecting Thermocouples (Page 4-18)
4.5.6 Parameters for analog electronic modules 2AO U Standard, 2AO U High Feature
and 2AO I Standard, 2AO I High Feature
Table 4-35 Parameters for analog output modules U, I
2AO U Standard,
2AO U High
Feature
2AO I Standard,
2AO I High
Feature
Range of values Default setting Applicability
Group diagnosis (parameter
assignment error, internal error)
• Disable
• Enable
Disable Module
Diagnostics:
Short-circuit to M
---
• Disable
• Enable
Disable Channel
--- Diagnostics:
Wire break
• Disable
• Enable
Disable Channel
Reaction to CPU-/master-STOP
• No output current and voltage
• Substitute a value
• Keep last value
No output current and
voltage
Module
Type/range of
output
---
• De-activated
• 1 V to 5 V
• ± 10 V
± 10 V Channel
--- Type/range of
output
• De-activated
• 4 to 20 mA
• ± 20 mA
4 to 20 mA Channel
Substitute value
1
To 65535 (value range must be
within the nominal range)
± 10 V: 0 V
± 20 mA: 0 mA
4 mA to 20 mA: 4 mA
1 V to 5 V: 1 V
Channel
1
If there is no voltage going to the interface module or COMPACT module but the supply to the analog output modules
continues, the substitute values that have been assigned parameters are output. Substitute values must be within the
nominal range. You can assign as parameters values from -27648 to +27648 (in the case of parameter assignment by
means of the device database file).
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