SIMATIC S7-200 3 - impol-1

© Siemens AG 2011
SIMATIC S7-200
Analog modules
EM 231, EM 232, EM 235
■ Technical specifications EM 231 (continued)
Voltage input
• permissible input voltage for voltage input
(destruction limit), max.
Current input
• permissible input current for current input
(destruction limit), max.
6ES7 231-0HC22-0XA0
30 V 30 V
32 mA 40 mA
Characteristic linearization
• for voltage measurement No No
• for current measurement No No
Temperature compensation
• Temperature compensation parameterizable No No
6ES7 231-0HF22-0XA0
Analog value creation
Integrations and conversion time/ resolution per
channel
• Resolution with overrange (bit including sign), 12 bit 12 bit
max.
• Interference voltage suppression for interference
40 dB, DC to 60 V for interference frequency 40 dB, DC up to 60 V for interference frequency
frequency f1 in Hz
50 / 60 Hz
• Conversion time (per channel) 250 μs 250 μs
Displayable conversion value range
• bipolar signals -32000 to +32000 -32000 to +32000
• unipolar signals 0 to 32000 0 to 32000
Errors/accuracies
Interference voltage suppression for
f = n x (fl +/- 1%), fl = interference frequency
• common mode voltage, max. 12 V 12 V
Galvanic isolation
Galvanic isolation analog inputs
• Galvanic isolation analog inputs No No
Dimensions and weight
Dimensions
• Width 71.2 mm 71.2 mm
•Height 80 mm 80 mm
•Depth 62 mm 62 mm
Weight
• Weight, approx. 183 g 190 g
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Siemens ST 70 · 2011
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