About SIMATIC S7-1200, Analog input, 6ES7238-5XA32-0XB0

Communication Protocols RS232 Mounting Type DIN Rail Pulse Transmission Output PROFINET Manufacturer Series S7 1200 Output Type Analog SIMATIC S7-1200, Analog input, SM 1238 Energy Meter 480 V AC, power measurement module for data acquisition in 1- and 3-phase supply systems (TN, TT) up to 480 V AC; Current range: 1 A, 5A; acquisition of voltage, current, phase angles, power, energy values, frequencies; Channel diagnostics

SIMATIC S7-1200 SM 1238 Energy Meter (480 V AC)

• Article No.: 6ES7238-5XA32-0XB0
• Type: Analog Input Energy Meter module for 1-phase & 3-phase systems (TN, TT)

General Information

• Product designation: SM 1238, AI Energy Meter 480 V AC

• HW version: From FS02

• Firmware version: V2.0.1

• Supported in TIA Portal: From V13 SP1

Supported Measurements

• Voltage (with VT)

• Current (with CT)

• Active/Reactive/APPARENT power

• Energy values

• Frequency

• Phase angles

• Channel diagnostics

Operating Mode

• Cyclic measurement: Yes

• Acyclic measurement & access: Yes

• Fixed value sets: Yes

• Freely definable value sets: No

CiR (Configuration in RUN)

• Reparameterization in RUN: Yes

• Calibration in RUN: Yes

Installation

• Mounting position: Horizontal / Vertical

Supply Voltage

• Power from CPU

• Type: DC

• Max. current consumption: 180 mA

Power Loss

• Typical: 0.75 W

Address Area

• Max. per module: 124 bytes

  • Inputs: 112 bytes

  • Outputs: 12 bytes

Operating Hours Counter

• Yes

Analog Inputs

• Cycle time (all measurements): 50 ms
  (consistent update of all measured & calculated values)

Diagnostics / Status

Alarms

• Diagnostic alarm: Yes

• Limit value alarm: Yes

• Hardware interrupt: No

LED Indicators

• PWR LED (supply): Yes

• Channel status (green): Yes

• Channel diagnostics (red Fn): Yes

• Module diagnostics (green/red DIAG): Yes

Integrated Measuring Functions

• Voltage: TRMS

• Current: TRMS

• Curve: Sinusoidal or distorted

• Seamless acquisition: Yes

• Measured values buffered: Yes

• Parameter length: 74 bytes

• Bandwidth: 2 kHz

  • Harmonics: 39 (50 Hz) / 32 (60 Hz)

Voltage Measurement Range

• Phaseneutral: max. 277 V

• Phasephase: max. 480 V

• Minimum voltage: 0 V

• Max. measurable limits:

  • PN: 293 V

  • PP: 508 V

• Internal resistance (L/N): 3.4 M

• Power per phase: 20 mW

• Impulse voltage: 1 kV

• Measurement category: CAT II (CAT III with 1.5 kV protection)

Current Measurement Range

• Relative current (to 5A CT): 1% 100%

• Continuous permissible: 5 A

• Apparent power per phase (5 A range): 0.6 VA

• 1-sec short-time withstand: 100 A

• Input resistance (05A): 25 m

• Surge strength: 10 A (1 minute)

• Zero suppression: 2250 mA (default 50 mA)

Accuracy Class (IEC 61557-12)

• Voltage: 0.2

• Current: 0.2

• Apparent power: 0.5

• Active power: 0.5

• Reactive power: 1

• Power factor: 0.5

• Active energy: 0.5

• Reactive energy: 1

• Neutral current (calculated): 0.5

• Phase angle: 1 (not IEC covered)

• Frequency: 0.05

Potential Separation / Isolation

• Channels Backplane bus: Yes (3700 V AC, CAT III)

• Isolation test: 2300 V AC, 1 min

Approvals

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

Ambient Conditions

Operation

• Horizontal: 20C +60C

• Vertical: 20C +50C

Dimensions & Weight

• Width: 45 mm

• Height: 100 mm

• Depth: 75 mm

• Weight: approx. 165 g 

Technical Details