Siemens Simatic S7 Series System Manual

Technical specifications
A.5 Thermocouple and RTD expansion modules (EMs)
S7-200 SMART
632 System Manual, 09/2015, A5E03822230-AC
A.5.2
RTD expansion modules (EMs)
EM RTD specifications
Table A- 116 General specifications
Technical data
EM RTD 2 x 16 bit (EM AR02)
EM RTD 4 x 16 bit (EM AR04)
Article number
6ES7 288-3AR02-0AA0
6ES7 288-3AR04-0AA0
Dimensions W x H x D (mm) 45 x 100 x 81 45 x 100 x 81
Weight
148.7 grams
150 grams
Power dissipation 1.5 W 1.5 W
Current consumption (SM Bus)
80 mA
80 mA
Current consumption (24 V DC)
1
40 mA
40 mA
Table A- 117 Analog inputs
Technical data
EM RTD 2 x 16 bit (EM AR02)
EM RTD 4 x 16 bit (EM AR04)
Number of inputs
2
4
Type
Module referenced RTD and Ω
Module referenced RTD and Ω
Range
Nominal range (data word)
Overshoot/undershoot range
(data word)
Overflow/underflow (data word)
See RTD Sensor selection table See RTD Sensor selection table
Resolution
Temperature
0.1° C / 0.1° F
0.1° C / 0.1° F
Resistance
15 bits + sign bit
15 bits + sign bit
Maximum withstand voltage
±35 V
±35 V
Noise rejection
85 dB at 10 Hz / 50 Hz /60 Hz / 400 Hz
85 dB at 10 Hz / 50 Hz /60 Hz / 400 Hz
Common mode rejection
>120 dB
>120 dB
Impedance
≥10 M Ω
≥10 M Ω
Isolation Field side to
logic
500 V AC 500 V AC
Field to 24 V DC
500 V AC
500 V AC
24 V DC to logic
500 V AC
500 V AC
Channel to channel isolation 0 0
Accuracy
See RTD Sensor selection table
See RTD Sensor selection table
Repeatability ±0.05% FS ±0.05% FS
Maximum sensor dissipation
0.5 m W
0.5 m W
Measuring principle
Sigma-delta
Sigma-delta
Module update time
See Noise reduction selection table
See Noise reduction selection table

Siemens Simatic S7 Series Specifications

General

CPU	Varies by model (e.g., S7-300, S7-400, S7-1200, S7-1500)
Communication Interfaces	PROFIBUS, PROFINET, Ethernet, MPI
Programming	TIA Portal, STEP 7
Programming Languages	LAD, FBD, STL, SCL, GRAPH
I/O Modules	Digital, Analog, Specialty modules available
Operating Temperature	0°C to 60°C (standard models)
Mounting	DIN rail mounting
Operating Voltage	24V DC or 120/230V AC (varies by model)
Protection Class	IP20 (standard models)
Memory	Varies depending on the S7 model. Includes work memory (RAM) for program execution, load memory (EEPROM or Flash) for program storage, and system memory for operating system functions. Memory sizes range from kilobytes to megabytes.