Siemens SIMATIC ET 200S - Parameters for analog output modules U, I

Analog Electronic Modules
12-38
ET 200S Distributed I/O System
EWA-4NEB 780602402-12
Temperature coefficient
The correction factor for the temperature coefficients (α value) indicates the
relative change of the resistance of a specified material if the temperature
increases by 1_C.
The temperature coefficient depends on the chemical composition of the material.
In Europe only one value is used per sensor type (default value).
The additional values enabled sensor-specific adjustment of the temperature
coefficients and therefore even greater precision.
Parameters for
• 2AO U Standard, 2AO U High Feature analog electronic module
• 2AO I Standard, 2AO I High Feature analog electronic module
Table 12-35 Parameters for analog output modules U, I
2AO U
Standard
2AO U High
Feature
2AO I
Standard
2AO I High
Feature
Value range Default setting Effective range
Group diagnostics
(configuration error, internal
error)
• disable
• enabled
disable Module
Diagnosis:
Short circuit
as per M
-- -- -- • disable
• enabled
disable Channel
-- -- -- Diagnosis:
Wire break
• disable
• enabled
disable Channel
Response at CPU/master
STOP
• Output without current and
voltage
• apply s ubstitute value
• hold last value
Output without
current and
voltage
Module
Output type /
range
-- -- -- • disabled
• 1to5V
•  10 V
 10 V Channel
-- -- -- Output type /
range
• disabled
• 4to20mA
•  20 mA
4to20mA Channel
Substitute value
1)
0 to 65535 (value range must
be within the nominal range)
10 V/ 20 V:
0V
4to20mA:4mA
1to5V:1V
Channel
1)
If the power to the IM is disconnected and the analog output modules are still powered, the configured
substitute values are output. Substitute values must be within the nominal range. Values from --27648 to
+27648 are configured (when configured with the GSD file).