Specifications For The Analog I/O; Specifications For The Analog Inputs (Cpu, Sm, And Sb) - Siemens SIMATIC S7-1200 Manual

A.7

Specifications for the analog I/O

A.7.1

Specifications for the analog inputs (CPU, SM, and SB)

Table A- 36 Specifications for analog inputs (AI)
Technical data
Type
Range
Resolution
Full scale range
(data word)
Accuracy
(25 °C / -20 to 60 °C)
Overshoot / undershoot range
(data word)
(See note 1)
Overflow / underflow (data
word)
(See note 1)
Maximum withstand voltage /
current
Smoothing
(See note 2)
Noise rejection
(See note 2)
Measuring principle
Common mode rejection
Operational signal range
(signal plus common mode
voltage)
Easy Book
Manual, 03/2014, A5E02486774-AF
CPU
Voltage (single-ended)
0 to 10 V
10 bits
0 to 27648
3.0% / 3.5% of full-scale
Voltage:
27,649 to 32,511
Current: N/A
Voltage:
32,512 to 32,767
Current: N/A
35 VDC (voltage)
None, weak, medium, or
strong
10, 50, or 60 Hz
Actual value conversion
40 dB, DC to 60 Hz
Less than +12 V and
greater than 0 V
A.7 Specifications for the analog I/O
SB
Voltage or current
(differential)
±10 V, ±5 V, ±2.5,
0 to 20 mA, or
4 mA to 20 mA
11 bits + sign bit
-27,648 to 27,648
±0.3% / ±0.6% of full scale
Voltage:
32,511 to 27,649 /
-27,649 to -32,512
Current:
32,511 to 27,649 /
0 to -4864
Voltage:
32,767 to 32,512 /
-32,513 to -32,768
Current:
32,767 to 32,512 /
-4865 to -32,768
±35 V / ±40 mA
None, weak, medium, or
strong
400, 60, 50, or 10 Hz
Actual value conversion
40 dB, DC to 60 Hz
Less than +35 V and
greater than -35 V
Technical specifications
SM
Voltage or current
(differential), selectable in
groups of 2
±10 V, ±5 V, ±2.5 V,
0 to 20 mA, or
4 mA to 20 mA
12 bits + sign bit
-27,648 to 27,648
±0.1% / ±0.2% of full scale
Voltage:
32,511 to 27,649 /
-27,649 to -32,512
Current:
32,511 to 27,649 /
0 to -4864
Voltage:
32,767 to 32,512 /
-32,513 to -32,768
Current:
32,767 to 32,512 /
-4865 to -32,768
±35 V / ±40 mA
None, weak, medium, or
strong
400, 60, 50, or 10 Hz
Actual value conversion
40 dB, DC to 60 Hz
Less than +12 V and greater
than -12 V
311