Siemens Simatic S7 Series

Technical specifications
A.5 Thermocouple and RTD expansion modules (EMs)
S7-200 SMART
626 System Manual, 09/2015, A5E03822230-AC
A.5
Thermocouple and RTD expansion modules (EMs)
A.5.1
Thermocouple expansion modules (EMs)
A.5.1.1
EM AT04 thermocouple specifications
Table A- 108 General specifications
Model
EM AT04 AI 4 x 16 bit TC
Article number
6ES7 288-3AT04-0AA0
Dimensions W x H x D (mm) 45 x 100 x 81
Weight
125 grams
Power dissipation
1.5 W
Current consumption (SM Bus)
80 mA
Current consumption (24 V DC)
1
40 mA
1
20.4 to 28.8 V DC (Class 2, Limited Power, or sensor power from PLC)
Table A- 109 Analog inputs
Model
EM AT04 AI 4 x 16 bit TC
Number of inputs
4
Range
Nominal range (data word)
Overrange/underrange (data
word)
Overflow/underflow (data word)
See Thermocouple selection table.
Resolution
Temperature
0.1° C / 0.1° F
Voltage
15 bits plus sign
Maximum withstand voltage
± 35
Noise rejection 85 dB for selected filter setting
(10 Hz, 50 Hz, 60 Hz or 400 Hz)
Common mode rejection
> 120 dB at 120 V AC
Impedance
≥ 10 MΩ
Isolation
Field to logic
500 V AC
Field to 24 V
DC
500 V AC
24 V DC to
logic
500 V AC
Channel to channel isolation
--
Accuracy
See Thermocouple selection table.
Repeatability
±0.05% FS
Measuring principle
Integrating