Siemens SIMATIC S7 System Manual page 753

Model
Module update time
Cold junction error
Cable length (meters)
Wire resistance
Table A- 118 Diagnostics
Model
Overflow/underflow
1
Wire break (current mode only)
24 V DC low voltage
1
The overflow, underflow and low voltage diagnostic alarm information will be reported in the analog data values even if
1
the alarms are disabled in the module configuration.
When wire break alarm is disabled and an open wire condition exists in the sensor wiring, the module may report ran-
2
dom values.
S7-200 SMART
System Manual, V2.3, 07/2017, A5E03822230-AF
EM AT04 AI 4 x 16 bit TC
See Filter selection table.
±1.5 °C
100 m to sensor max.
100 Ω max.
EM AT04 AI 4 x 16 bit TC
Yes
Yes
2
Yes
A.5 Thermocouple and RTD expansion modules (EMs)
Technical specifications
753