About SIMATIC S7-1200, Analog input, SB 1231 TC, 6ES7231-5QA30-0XB0

SIMATIC S7-1200 SB 1231 TC

Analog Input Module 1 AI Thermocouple (Type J/K)
Article No.: 6ES7231-5QA30-0XB0

General Information

• Module type: SB 1231, AI 1x16 bit TC

• Supply voltage: 24 V DC

• Current consumption:

  • Typical: 5 mA

  • From backplane bus: 5 V DC, 20 mA

• Power loss: 0.5 W

Analog Inputs

• Number of inputs: 1 (Thermocouple)

• Permissible input voltage (destruction limit): 35 V

• Measurement units: C / F (adjustable)

• Input types:

  • Voltage: Yes

  • Current: No

  • Thermocouples: J, K, T, E, R, S, B, N, C, TXK/XK(L) (80 mV)

  • Resistance thermometer: No

  • Resistance: No

• Voltage input range: 80 mV to +80 mV

  • Input resistance: 1 M

• Thermocouple ranges:

  • Type J: up to 1,200 C

  • Type K: up to 1,372 C

• Temperature compensation: Not parameterizable

• Analog outputs: None

Measurement & Accuracy

• Principle: Integrating

• Resolution: Max 15-bit (+ sign)

• Parameterizable integration time: No

• Interference suppression: 85 dB at 10/50/60/400 Hz

• Smoothing: Parameterizable

• Temperature error: 0.1% at 25 C; 0.2% up to 55 C

• Repeat accuracy (steady state at 25 C): 0.5%

• Common mode interference suppression: 120 dB

Diagnostics & Alarms

• Alarms: Yes (diagnostic)

• Diagnostics function: Yes, can be read out

• Wire-break detection: Yes

• LED indicators:

  • Input status: Yes

  • Maintenance: Yes

Standards & Approvals

• CE, CSA, UL, cULus, FM, RCM, KC

• Marine approval: Yes

Ambient Conditions

• Free fall: Max 0.3 m, 5 times in packaging

• Operation temperature: 20 60 C

  • Horizontal: 20 60 C

  • Vertical: 20 50 C

• Storage / Transport temperature: 40 70 C

• Air pressure:

  • Operation: 795 1,080 hPa

  • Storage/Transport: 660 1,080 hPa

• Relative humidity: Max 95% at 25 C, no condensation

• Pollutant concentrations:

  • SO < 0.5 ppm, HS < 0.1 ppm, RH < 60%, condensation-free

Connection

• Required front connector: Yes

• Cable type: Shielded, twisted pair, max length 100 m

Mechanics

• Front enclosure material: Plastic

• Dimensions (W H D): 38 62 21 mm

• Weight: 35 g 

Technical Details