Product information
Overview
Applications
- Power data acquisition: Acquires voltage, current, phase angles, power, energy and frequency values in 1- and 3-phase TN and TT supply systems up to 480 V AC.
Key Features
- Energy and power measurement: Measures voltage, current, energy, frequency, active power and reactive power; phase-angle measurement is also supported.
- 480 V AC measurement: Measures line voltage up to 480 V between line conductors and up to 277 V between phase and neutral conductor.
- Current measurement: Supports 1 A and 5 A current ranges, with current measurement via a current transformer.
- Fast measured-value acquisition: Typical cycle time is 50 ms for a consistent update of all measured and calculated values; acquisition bandwidth is 2 kHz.
- Diagnostics and alarms: Provides channel diagnostics, diagnostic alarms, limit value alarms, supply-voltage monitoring and channel, function and module status LEDs.
- Mounting and supply: Mounting position is horizontal or vertical. The DC power supply is from the CPU, with maximum current consumption of 180 mA.
Technical Summary
| Product type | SM 1238, AI energy meter 480 V AC |
|---|---|
| Measurement system | 1- and 3-phase TN and TT supply systems up to 480 V AC |
| Voltage measurement | 0 V to 293 V phase-to-neutral; 0 V to 508 V between line conductors |
| Current range | 1 A, 5 A |
| Measured variables | Voltage, current, phase angle, power, energy and frequency |
| Cycle time, typ. | 50 ms; all channels active |
| Firmware version | V2.0.1 |
| Mounting position | Horizontal, vertical |
| Supply voltage | DC, from CPU |
| Address space per module, max. | 124 byte; 112 byte input / 12 byte output |
| HW functional status | From FS02 |
Frequently Asked Questions
What is the exact Siemens model and product type?
It is Siemens 6ES7238-5XA32-0XB0, SM 1238, AI energy meter 480 V AC.
Which voltage and current values can this module measure?
It measures 0 V to 293 V phase-to-neutral and 0 V to 508 V between line conductors. The current ranges are 1 A and 5 A.
What mounting positions and supply are supported?
The mounting position is horizontal or vertical. The DC power supply is from the CPU.
Can you quote this module for a project requirement?
Send the required quantity, destination and project list or requested date for model-specific quotation support.
