Siemens SIMATIC - Page 322

Analog modules
6.4 Analog input module SM 331; AI 8 x 16 Bit; (6ES7331-7NF10-0AB0)
S7-300 Module data
322 Manual, 06/2017, A5E00105505-AJ
Technical specifications
Status, interrupts, diagnostics
Interrupts
• Hardware interrupt when limit value is exceeded
• Hardware interrupt at end of cycle
• Diagnostic interrupt
Programmable channels 0 to 7
programmable
programmable
Diagnostic functions programmable
• Group error display
• Reading diagnostic information
red LED (SF)
supported
Encoder 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
Maximum voltage at voltage input (destruction limit) 35 V continuous; 75 V for max. duration of 1 s (duty
factor 1:20)
Maximum current at current input (destruction limit)
40 mA
Wiring of the signal transmitters
using a 40pin 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)
The series mode rejection in 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 settles to 100% within 80 ms. The value determined in this process is returned
at intervals of max. 10 ms.