Key Features
- Analog I/O expansion module: SIMATIC S7-1200 analog I/O SM 1234 module with 4 AI/2 AO.
- Input and output signal types: Supports current or voltage differential inputs and current or voltage outputs.
- Analog input ranges: Voltage: Yes; ±10V, ±5V, ±2.5V. Current: Yes; 4 to 20 mA, 0 to 20 mA.
- Analog output ranges: -10 V to +10 V, 0 to 20 mA, and 4 mA to 20 mA.
- Diagnostics functions: Alarms, diagnostic function, diagnostic alarm, supply voltage monitoring, wire break, and short-circuit monitoring.
- Protection and installation data: IP20 degree of protection and shielded cable length max. 100 m.
Applications
- Analog signal acquisition: Acquires current or voltage signals on 4 analog inputs.
- Analog signal output: Provides current or voltage signals on 2 analog outputs.
- Module diagnostics monitoring: Supports alarm and diagnostic monitoring for supply voltage, wire break, and short-circuit conditions.
Technical Summary
| Product type designation | SM 1234, AI 4×13 bit/AQ 2×14 bit |
|---|---|
| Rated value (DC) | 24 V |
| Current consumption, typ. | 60 mA |
| from backplane bus 5 V DC, typ. | 80 mA |
| Power loss, typ. | 2 W |
| Number of analog inputs | 4; Current or voltage differential inputs |
| Number of analog outputs | 2; Current or voltage |
| Cycle time (all channels) max. | 625 μs |
| Input ranges Voltage | Yes; ±10V, ±5V, ±2.5V |
| Input ranges Current | Yes; 4 to 20 mA, 0 to 20 mA |
| Output ranges, voltage | -10 V to +10 V |
| Output ranges, current | 0 to 20 mA |
| IP degree of protection | IP20 |
Frequently Asked Questions
What is the Siemens 6ES7234-4HE32-0XB0 used for?
It is a SIMATIC S7-1200 analog I/O SM 1234 module with 4 AI/2 AO.
How many analog inputs and outputs does this module have?
It has 4 analog inputs and 2 analog outputs.
What signal ranges does the 6ES7234-4HE32-0XB0 support?
Input ranges are ±10V, ±5V, ±2.5V, 4 to 20 mA, and 0 to 20 mA. Output ranges are -10 V to +10 V, 0 to 20 mA, and 4 mA to 20 mA.
What supply and protection data should be checked before selection?
Rated value (DC) is 24 V, and the degree of protection is IP20.
