Analog modules
6.4 Analog input module SM 331; AI 8 x 16 Bit; (6ES7331-7NF10-0AB0)
S7-300 Automation System Module data
Manual, 08/2006, A5E00105505-04
6-21
Technical data
Status, interrupts, diagnostics
Interrupts
• Hardware interrupt when limit value is exceeded
• Hardware interrupt at end of cycle
• Diagnostic interrupt
Programmable channels 0 - 7
programmable
programmable
Diagnostics functions programmable
• Group error display
• Reading diagnostics information
red LED (SF)
supported
Transducer selection data
Input range (rated values) / input impedance
• Voltage
± 5 V / 2 MΩ
1 V to 5 V / 2 MΩ
± 10 V / 2 MΩ
• Current
0 mA to 20 mA / 250 Ω
4 mA to 20 mA / 250 Ω
± 20 mA / 250 Ω
Permissible voltage at voltage input (destruction limit) 35 V continuous; 75 V for max. duration of 1 s (duty
factor 1:20)
Permissible current at current input (destruction limit) 40 mA
Wiring signal transducers with 40-pin front connector
• for voltage measurement
• for current measurement
as 2-wire transducer
as 4-wire transducer
supported
possible, with separate transducer supply
supported
1)
Interference frequency for 4-channel mode is "All"
2)
Interference frequencies 50/60/400 Hz are designated as "All"
3)
Series-mode rejection for 8-channel mode is reduced as follows:
50 Hz > 70 db
60 Hz > 70 db
400 Hz > 80 dB
50/60/400 Hz > 90 dB
4)
In 4-channel mode, the converted value tunes to 100% within 80 ms. The value
established in this process is set every max. 10 ms.
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