Siemens 6ES7331-7KF02-0AB0 Analog Input

Overview

• Siemens 6ES7331-7KF02-0AB0
• Analog input module for SIMATIC S7-300
• Provides eight isolated analog input channels
• Measures voltage, current, temperature, and resistance

Technical Specifications

General Information:

• Product type: Analog input module
• Memory card required: Yes (SIMATIC memory card)

Supply Voltage:

• Rated value (DC): 24 V
• Permissible range, lower limit (DC): 19.2 V; 20.4 V DC (for digital I/O)
• Permissible range, upper limit (DC): 28.8 V
• Reverse polarity protection: Yes
• Mains buffering: 5 ms; Repeat rate, min. 1/s

Input Current:

• Current consumption (rated value): 0.8 A (without load); 18.8 A (CPU + load)
• Current consumption, max.: 1 A (without load); 19 A (CPU + load)
• Inrush current, max.: 1.9 A; Rated value
• I²t: 0.34 A²·s

Digital Inputs:

• From load voltage L+ (without load), max.: 20 mA per group
• Functions: Gate start/stop, Capture, Synchronization
• Input voltage: DC, Rated value (DC) 24 V, for signal "0" -3 to +5V, for signal "1" +11 to +30V
• Input current: For signal "1", typ. 2.5 mA
• Input delay: Parameterizable
• Cable length: Shielded, max. 1,000 m; Unshielded, max. 600 m

Digital Outputs:

• Type: Transistor
• Integrated channels (DO): 32
• Current-sourcing: Yes; Push-pull output
• Short-circuit protection: Yes; electronic/thermal
• Functions: PWM output, Frequency output
• Switching capacity: Max. 0.5 A (resistive load); Max. 5 W (lamp load)
• Load resistance range: Lower limit 48 Ω; Upper limit 12 kΩ
• Output voltage: DC, for signal "0" max. 1 V, for signal "1" min. 23.2 V

Analog Inputs:

• Number of analog inputs: 8
• For resistance measurement: 4
• Permissible input voltage (destruction limit): 20 V; 75 V for max. 1 s
• Permissible input current (destruction limit): 40 mA
• Analog value generation: Resolution up to 15 bit
• Integration time: Parameterizable

Encoder:

• Connection: Voltage measurement, current measurement (2-wire and 4-wire), resistance measurement (2-wire, 3-wire, and 4-wire)

Errors/Accuracies:

• Operational error limits: Voltage, current, resistance, thermometer, thermocouple

Interrupts/Diagnostics/Status Information:

• Diagnostics function: Yes; Parameterizable
• Alarms: Diagnostic alarm, Limit value alarm
• Diagnostics indication LED: Yes

Potential Separation:

• Between channels: No
• Between channels and backplane bus: Yes
• Between channels and power supply: Yes

Isolation:

• Tested with 500 V DC

Dimensions:

• Width: 40 mm
• Height: 125 mm
• Depth: 117 mm

Weight:

• Approx. 250 g