About SIMATIC S7-1200, Analog input, SB 1231, 6ES7231-4HA30-0XB0

Data Sheet: 6ES7231-4HA30-0XB0

SIMATIC S7-1200 Analog Input Module SB 1231 (1 AI, 10 V / 020 mA, 12-bit)

General Information

• Product type designation: SB 1231, AI 1x12 bit

• Rated supply voltage (DC): 24 V

Input Current

• From backplane bus (5 V DC): typ. 55 mA

Power Loss

• Typical power loss: 0.4 W

Analog Inputs

• Number of analog inputs: 1 (current or voltage differential inputs)

Permissible Limits

• Input voltage for current input (max): 35 V

• Input voltage for voltage input (max): 35 V

• Input current limit (voltage input): max. 40 mA

• Input current limit (current input): max. 40 mA

Cycle Time

• Max. cycle time (all channels): 156.25 s (400 Hz suppression)

Input Ranges

Voltage

• 10 V (Input resistance 9 M)

• 5 V (Input resistance 9 M)

• 2.5 V (Input resistance 9 M)

Current

• 0 to 20 mA (Input resistance 250 )

Analog Outputs

• Number of analog outputs: 0

Cable Length

• Shielded: max. 100 m (shielded, twisted pair)

Analog Value Generation

• Measurement principle: Integrating

• Resolution (max): 11-bit + sign

• Integration time: Parameterizable

• Interference suppression: 40 dB (DC to 60 Hz)

Smoothing Options

• None

• Low

• Medium

• High

Errors / Accuracies

• Temperature error (relative to input range):

  • 0.3% at 25 C

  • 0.6% up to 55 C

Diagnostics / Status Information

• Diagnostics functions: Yes

• Diagnostic alarms: Yes

• Wire-break detection: No

LED Indications

• Input status: Yes

• Maintenance: Yes

Approvals & Certificates

CE, CSA, UL, cULus, FM, RCM, KC, Marine approvals

Ambient Conditions

Free Fall

• Max. 0.3 m (five times, in product packaging)

Operating Temperature

• -20 C to +60 C (horizontal installation)

• -20 C to +50 C (vertical installation)

Storage Temperature

• -40 C to +70 C

Air Pressure

• Operation: 795 to 1080 hPa

• Storage/transport: 660 to 1080 hPa

Humidity

• Max. 95% (at 25 C, no condensation)

Pollutant Concentration

• SO < 0.5 ppm

• HS < 0.1 ppm

Connection Method

• Required front connector: Yes

Mechanical Data

• Enclosure material: Plastic

• Dimensions:

  • Width: 38 mm

  • Height: 62 mm

  • Depth: 21 mm

• Weight: approx. 35 g 

Technical Details