Siemens SIMATIC S7 System Manual page 705

Model
Full scale range (data word)
Overshoot/undershoot range
(data word)
Overflow/underflow (data word)
Resolution
Maximum withstand voltage/current
Smoothing
Noise rejection
Input impedance
Isolation (field side to logic)
Accuracy (25°C / 0 to 55°C)
Analog to digital conversion time
Common mode rejection
Operational signal range
Cable length (meters)
Table A- 85 Analog outputs
Technical data
Number of outputs
Type
Range
Resolution
Full scale range (data word)
Accuracy (25°C / 0 to 55°C)
Settling time (95% of new value)
Load impedance
Behavior on RUN to STOP
Isolation (field side to logic)
Cable length (meters)
S7-1200 Programmable controller
System Manual, 11/2011, A5E02486680-05
SM 1234 AI 4 x 13 bit / AQ 2 x 14 bit
-27,648 to 27,648
Voltage: 32,511 to 27,649 / -27,649 to -32,512
Current: 32,511 to 27,649 / 0 to -4864
Refer to the section on input ranges for voltage and current (Page 708).
Voltage: 32,767 to 32,512 / -32,513 to -32,768
Current: 32,767 to 32,512 / -4865 to -32,768
Refer to the section on input ranges for voltage and current (Page 708).
12 bits + sign bit
±35 V / ±40 mA
None, weak, medium, or strong
Refer to the section on step response times (Page 707).
400, 60, 50, or 10 Hz
Refer to the section on sample rates (Page 707).
≥ 9 MΩ (voltage) / 280 Ω (current)
None
±0.1% / ±0.2% of full scale
625 μs (400 Hz rejection)
40 dB, DC to 60 Hz
Signal plus common mode voltage must be less than +12 V and greater
than -12 V
100 m, twisted and shielded
SM 1234 AI 4 x 13 bit / AQ 2 x 14 bit
2
Voltage or current
±10 V or 0 to 20 mA
Voltage: 14 bits ; Current: 13 bits
Voltage: -27,648 to 27,648 ; Current: 0 to 27,648
Refer to to the section on output ranges for voltage and current
(Page 708).
±0.3% / ±0.6% of full scale
Voltage: 300 μS (R), 750 μS (1 uF)
Current: 600 μS (1 mH), 2 ms (10 mH)
Voltage: ≥ 1000 Ω
Current: ≤ 600 Ω
Last value or substitute value (default value 0)
none
100 m twisted and shielded
553BTechnical specifications
A.6 Analog signal modules (SMs)
705