Siemens Simatic S7-300 - Page 246

Analog modules
6.3 Analog input module SM 331; AI 8 x 16 Bit; (6ES7331-7NF00-0AB0)
S7-300 Automation System Module data
6-12 Manual, 08/2006, A5E00105505-04
Technical data
Basic error limit (operational error limit at 25 °C relative to input range)
• Voltage input
• Current input
±0,05%
±0,05%
Temperature error (relative to input range) ±0.005%/K
Linearity error (relative to input range) ±0,03%
Repetition accuracy (in transient state at 25 °C, relative to input
range)
±0,025%
Status, interrupts, diagnostics
Interrupts
• Hardware interrupt when limit has been exceeded
• Diagnostic interrupt
programmable
Channels 0 and 2
programmable
Diagnostics functions
• Group error display
• Reading diagnostics information
programmable
red LED (SF)
supported
Transducer selection data
Input ranges (rated values) / input impedance
• Voltage
± 5 V
1 to 5 V
± 10 V
/ 2 MΩ
/ 2 MΩ
/ 2 MΩ
• Current
0 mA to 20 mA
± 20 mA
4 mA to 20 mA
/ 250 Ω
/ 250 Ω
/ 250 Ω
Permissible voltage at voltage input (destruction limit) max. 50 V, continuous
Permissible current at current input (destruction limit) max. 32 mA
Wiring signal transducers with 40-pin front connector
• for voltage measurement
• for current measurement
as 2-wire transducer
as 4-wire transducer
• Load of the 2-wire transducer
supported
possible, with separate transducer supply
supported
max. 820 Ω