Siemens 6ES7214-2AD23-0XB0 CPU SR30 AC/DC/Relay | Replacement, Equivalent & Selection Guide
The Siemens 6ES7214-2AD23-0XB0 is a high-performance CPU module from the S7-200 SMART series, designed for compact automation applications requiring reliable AC power input, DC digital inputs, and relay outputs. As an authorized sourcing partner, Konmask.com supplies genuine and compatible units with full traceability for industrial buyers worldwide.
Technical Specifications
- Part Number: 6ES7214-2AD23-0XB0
- Series: SIMATIC S7-200 SMART
- CPU Type: SR30 (Standard, Relay Output)
- Power Supply: AC 85–264 V
- Digital Inputs: 18 × DC 24 V
- Digital Outputs: 12 × Relay (2 A per point)
- Program Memory: 24 KB
- Data Memory: 10 KB
- High-Speed Counters: 4 × 200 kHz
- Pulse Outputs: 3 × 100 kHz (transistor models only; relay model supports motion via signal board)
- Communication Ports: 1 × RS-485 (supports Modbus RTU, USS, PPI)
- Ethernet Port: 1 × RJ45 (PROFINET / S7 protocol)
- Expansion Modules: Up to 6
- Signal Boards: Up to 1
- Operating Temperature: 0–55 °C
- Protection Rating: IP20
- Weight: approx. 340 g
- Dimensions (W×H×D): 175 × 100 × 81 mm
Compatible Replacement & Equivalent Models
The table below lists direct replacements and functional equivalents for the 6ES7214-2AD23-0XB0. Always verify I/O count, power supply type, and communication requirements before substituting.
- 6ES7214-2AD23-0XB8 — Same CPU SR30, updated firmware revision (drop-in replacement)
- 6ES7214-1AD23-0XB0 — CPU ST30 (DC/DC/Transistor); same I/O count, DC power supply, transistor outputs — use when relay outputs are not required
- 6ES7214-1HG40-0XB0 — CPU ST40 (DC/DC/Transistor, 40 I/O); upgrade path for higher I/O density
- 6ES7214-2BD23-0XB0 — CPU SR30 with DC power supply; functionally equivalent when AC input is not available
- 6ES7288-1SR30-0AA0 — S7-200 SMART SR30 OEM variant; compatible in most applications
- Mitsubishi FX3G-40MR/ES — Third-party equivalent; 24 DI / 16 DO relay, AC power; requires re-programming in GX Works2
- Delta DVP32ES200R — Functional equivalent; 16 DI / 16 DO relay, AC power; Modbus RTU compatible
Why Choose the Original Model
- Native STEP 7-Micro/WIN SMART integration — zero re-engineering cost
- Seamless expansion with Siemens EM modules (analog, digital, thermocouple, RTD)
- Proven relay output reliability — rated 100,000 mechanical operations
- Integrated Ethernet for SCADA, HMI (KTP series), and remote monitoring without additional hardware
- Long product lifecycle — Siemens S7-200 SMART is actively supported with firmware updates
Typical Applications
- Packaging machinery and conveyor control
- HVAC and building automation systems
- Water treatment and pump station control
- Textile and printing equipment
- Small-scale process automation with mixed AC/relay I/O requirements
- OEM machine builders requiring compact, cost-effective PLC solutions
System Compatibility
- Programming Software: STEP 7-Micro/WIN SMART V2.x and above
- HMI Compatibility: Siemens SMART LINE (KTP400/700/1000 SMART), WinCC flexible
- Communication Protocols: S7, Modbus RTU (master/slave), USS, PPI, Modbus TCP (via Ethernet)
- Expansion I/O: EM AM03, EM AM06, EM DE08, EM DR08, EM DT08, EM AE04, EM AQ02, EM AR02, EM AT04
- Signal Board: SB AQ01, SB DT04, SB CM01 (RS-232/RS-485)
- Power Supply Module: PM207 (external 24 V DC for sensors/field devices)
Selection Guide
Use the following criteria to confirm the 6ES7214-2AD23-0XB0 is the right choice, or to identify the best alternative:
- Power supply available: AC 85–264 V → SR30 (this model) ✔ | DC 24 V → ST30 (6ES7214-1AD23-0XB0)
- Output type required: Relay (inductive loads, AC loads) → SR30 ✔ | Fast switching / PWM → ST30 (transistor)
- I/O count needed: ≤30 points → SR30 ✔ | 31–40 points → SR40 (6ES7214-2BD23-0XB0) | >40 → SR60
- High-speed pulse output needed: No → SR30 ✔ | Yes → ST30 or ST40
- Budget constraint: OEM variant (6ES7288-1SR30-0AA0) offers cost savings with equivalent performance
- Third-party acceptable: Mitsubishi FX3G or Delta DVP series if Siemens ecosystem is not mandatory
Quality Assurance & Sourcing
- All units sourced from authorized distributors and verified secondary market channels
- Each module undergoes visual inspection, firmware version verification, and power-on functional test before shipment
- Genuine Siemens holographic labels and serial numbers verified against Siemens Product Authenticity Check (PAC)
- Packaging: original Siemens anti-static box or equivalent ESD-safe packaging
- Warranty: 12 months from date of shipment (DOA replacement within 30 days)
How to Order
-
Step 1: Confirm part number:
6ES7214-2AD23-0XB0 - Step 2: Specify quantity and required delivery timeline
- Step 3: Contact us via email or WhatsApp for bulk pricing and lead time
- Step 4: Receive proforma invoice → confirm payment → shipment with tracking
- Shipping: DHL / FedEx / UPS express worldwide | Sea freight available for large orders
- Lead Time: In-stock orders ship within 1–3 business days
Replacement & Compatibility FAQ
Q: Can I replace 6ES7214-2AD23-0XB0 with 6ES7214-2AD23-0XB8?
A: Yes. The -0XB8 suffix indicates a hardware revision with identical electrical and functional specifications. It is a direct drop-in replacement.
Q: Is the ST30 (6ES7214-1AD23-0XB0) a direct replacement for the SR30?
A: Functionally equivalent in I/O count, but the ST30 uses DC 24 V power supply and transistor outputs. Wiring changes are required. Not a drop-in replacement.
Q: Can I use a Mitsubishi FX3G instead of the Siemens SR30?
A: Hardware-wise, yes — similar I/O and AC power. However, you must rewrite the program in GX Works2 (Mitsubishi’s IDE). Not recommended unless migrating away from the Siemens ecosystem.
Q: Does the 6ES7214-2AD23-0XB0 support Modbus TCP?
A: Yes, via the built-in Ethernet port using the Modbus TCP library in STEP 7-Micro/WIN SMART.
Q: What is the maximum number of expansion modules?
A: Up to 6 EM modules plus 1 signal board can be connected to this CPU.
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