Siemens SIMATIC ET 200PA SMART - Page 198

Channel Assigned channel group
Channel 2 Channel group 1
Channel 3
Channel 4 Channel group 2
Channel 5
Channel 6 Channel group 3
Channel 7
Group diagnostics
The diagnostics parameter "Group diagnostics" enables the signaling of channel-specific
errors to be switched off, with the exception of parameter assignment errors.
Wire break check
The analog input module AI 8 x TC/4 x RTD carries out a wire-break check for all ranges if it is
enabled via parameter assignment. In the case of the thermal resistance measurement (RT),
all 4 connection wires are monitored are monitored for wire break.
Possible measuring ranges
The possible measuring ranges as a function of the measurement type setting can be found in
the following tables.
Measuring ranges for voltage measurements
Selected measure‐
ment type
Explanation Measuring range
U Voltage ± 25 mV
± 50 mV
± 80 mV
± 250 mV
± 500 mV
± 1 V
Measuring ranges for resistance measurement
Selected measure‐
ment type
Explanation Measuring range
R-4L Resistance 4-wire connection 150 ohms
300 ohms
600 ohms
ET 200PA SMART I/O modules
10.4 Analog input modules
ET 200PA SMART
198 Operating Instructions, 06/2019, A5E34192013-AB