Siemens SIMATIC ET 200AL - Page 1397

What you should know about analog technology
2.14 Diagnostics
Analog value processing
40 Function Manual, 06/2014, A5E03461439-AC
Table 2- 12
Diagnostics types of an analog input module to be configured depending on the measurement type
"Thermocouple"
No supply
voltage L+
Wire break Overflow Underflow Common
mode error
Reference
junction
Short-circuit
S7-1500
✓
✓
✓
✓
✓
✓
-
ET 200MP
✓
✓
✓
✓
✓
✓
-
ET 200SP
✓
✓
✓
✓
-
✓
-
ET 200eco PN
✓
-
✓
✓
-
✓
-
ET 200pro
-
-
✓*
✓*
-
✓
-
* For ET 200pro, the parameters "Overflow" and "Underflow" are combined to the parameter "Overflow/Underflow"
Diagnostics for analog output modules
Table 2- 13
Diagnostics types of an analog output module to be configured depending on the measurement type "Voltage"
No supply
voltage L+
Wire break Overflow Underflow Short-circuit Overload
S7-1500
✓
-
✓
✓
✓
-
ET 200MP
✓
-
✓
✓
✓
-
ET 200SP
✓
-
✓
✓
✓
-
ET 200eco PN
✓
-
-
-
✓
✓
ET 200pro
-
-
-
-
✓
-
Table 2- 14
Diagnostics types of an analog output module to be configured depending on the measurement type "Current"
No supply
voltage L+
Wire break Overflow Underflow Short-circuit Overload
S7-1500
✓
✓
✓
✓
-
-
ET 200MP
✓
✓
✓
✓
-
-
ET 200SP
✓
✓
✓
✓
-
-
ET 200eco PN
✓
✓
-
-
-
✓
ET 200pro
-
✓
-
-
-
-
Note
Measuring ranges
Note that the diagnostics types that can be parameterized depend on the
selected
measurement/output type as well as on the respective measuring range.
Note
Minimum output values
Certain errors such as wire break and short circuit cannot be diagnosed below a given
current or voltage value. Diagnostics are only possible
again once the output returns to
above this minimum value.