Siemens SIMATIC ET 200S Manual page 424

Analog Electronic Modules
Temperature coefficient
The correction factor for the temperature coefficient (a 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.
Parameters for
• 2AO U Standard, 2AO U High Feature analog electronic module
• 2AO I Standard, 2AO I High Feature analog electronic module
Table 13-35 Parameters for analog output modules U, I
2AO U 2AO I
Standard, Standard,
2AO U High 2AO I High
Feature Feature
Group diagnosis (parameter
assignment error, internal
error)
Diagnostics: –––
Short-circuit
to M
––– Diagnostics:
Wire break
Reaction to
CPU-/master-STOP
Type/range –––
of output
––– Type/range
of output
1)
Substitute value
1)
If there is no voltage going to the IM but the supply to the analog output modules continues, the
parameterized substitute values 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).
13-40
Value range
•
Disable
• Enable
•
Disable
•
Enable
•
Disable
•
Enable
• Output de-energized
•
Substitute a value
•
Keep last value
•
Deactivated
•
1 to 5 V
•
" 10 V
•
Deactivated
•
4 to 20 mA
•
" 20 mA
0 to 65535 (value range must
be inside the rated range)
Default Applicability
Disable Module
Disable Channel
Disable Channel
Output Module
de-energized
"10 V Channel
4 to 20 mA Channel
"10 V/"20 V: Channel
0 V
4 to 20 mA: 4 mA
1 to 5 V: 1 V
ET 200S Distributed I/O System
EWA-4NEB780602402-09