SIEMENS 6ES7422-1BH11-0AA0 Digital Output Module – SIMATIC S7-400 SM 422
When a digital output module fails on the production floor, the consequences are immediate and severe: conveyor lines halt, robotic arms freeze mid-cycle, and safety interlocks trip the entire cell offline. Every minute of unplanned downtime in a high-throughput automotive or chemical plant can cost thousands of dollars. The SIEMENS 6ES7422-1BH11-0AA0 SM 422 digital output module is the precision-engineered component that keeps those signals flowing — reliably switching actuators, solenoids, and drives exactly when the PLC commands it.
Within the SIMATIC S7-400 ecosystem, the 6ES7422-1BH11-0AA0 occupies a critical mid-range position: it delivers 32 channels of 24 V DC digital output at up to 0.5 A per channel, making it the go-to choice for dense I/O applications where rack space is at a premium. As part of Siemens’ globally dominant S7-400 platform — deployed in tens of thousands of process and discrete manufacturing facilities worldwide — this module benefits from decades of firmware maturity, broad STEP 7 and TIA Portal support, and an extensive global spare-parts ecosystem.
Technical Specifications
- Part Number: 6ES7422-1BH11-0AA0
- Series: SIMATIC S7-400, Signal Module SM 422
- Module Type: Digital Output (DO)
- Number of Outputs: 32 channels
- Output Voltage: 24 V DC
- Output Current per Channel: 0.5 A
- Total Current per Module: 4 A (per group)
- Output Type: Transistor (sourcing / P-switching)
- Isolation: Optocoupler isolation between field and backplane
- Backplane Bus: S7-400 parallel backplane
- Dimensions (W × H × D): 25 mm × 290 mm × 210 mm
- Weight: approx. 620 g
- Operating Temperature: 0 °C to +60 °C
- Storage Temperature: −40 °C to +70 °C
- Degree of Protection: IP 20
- Programming Software: STEP 7 V5.x / TIA Portal V13 and above
- Certifications: CE, UL, cULus, ATEX (zone 2)
Key Features & Benefits
- High Channel Density: 32 DO channels in a single 25 mm-wide slot minimizes rack space consumption in large S7-400 configurations.
- Transistor Switching: Solid-state outputs provide fast switching times (<0.1 ms) and long service life compared to relay alternatives.
- Diagnostic Capability: Supports channel-level short-circuit and wire-break diagnostics readable via STEP 7 / TIA Portal, enabling predictive maintenance.
- Hot-Swap Ready: Compatible with S7-400H redundant systems; supports online module replacement without full system shutdown.
- Galvanic Isolation: Optocoupler isolation protects the CPU backplane from field-side voltage transients and ground loops.
- Wide Industrial Temperature Range: Rated 0–60 °C for operation in non-air-conditioned control cabinets.
- Proven Reliability: MTBF exceeding 500,000 hours in standard industrial environments.
Industry & Equipment Applications
- Automotive Manufacturing: Body-in-white welding lines, paint shop conveyors, assembly robot cell control
- Chemical & Petrochemical: Valve actuator control, pump start/stop sequencing, emergency shutdown (ESD) systems
- Food & Beverage: Filling machine solenoid control, packaging line indexing, CIP valve sequencing
- Power Generation: Turbine auxiliary control, switchgear interlocking, substation automation
- Water & Wastewater: Pump station control, dosing valve actuation, SCADA-integrated DO control
- Pharmaceutical: Cleanroom HVAC damper control, bioreactor valve sequencing (FDA 21 CFR Part 11 environments)
System Integration & Compatible Parts
The 6ES7422-1BH11-0AA0 is designed for seamless integration within the SIMATIC S7-400 platform. Compatible and commonly paired components include:
- CPUs: 6ES7412-x, 6ES7414-x, 6ES7416-x, 6ES7417-x series
- Power Supplies: 6ES7407-0DA02-0AA0, 6ES7407-0KA02-0AA0
- Racks: 6ES7400-1JA01-0AA0 (UR1), 6ES7400-2JA00-0AA0 (UR2)
- Front Connectors: 6ES7492-1AL00-0AA0 (40-pin screw-type)
- Digital Input Counterpart: 6ES7421-1BL01-0AA0 (32 DI, 24 VDC)
- IM Interface Modules: 6ES7460-1BA01-0AA0 / 6ES7461-1BA01-0AA0 for multi-rack expansion
Our Quality Assurance Process
At Konmask.com, every SIEMENS module undergoes a rigorous multi-stage inspection before shipment:
- Visual Inspection: Housing integrity, label authenticity, connector pin condition
- Firmware Version Check: Verified against Siemens official version matrix
- Functional Power-On Test: Module powered and channel-level DO signal verification performed
- Anti-Static Packaging: ESD-safe bags + foam-lined carton for international freight
- Traceability: Each unit ships with inspection record and serial number documentation
We source exclusively from authorized distributors and verified industrial surplus channels. Counterfeit-free guarantee backed by our return policy.
How to Order
- Submit an inquiry via the Contact / RFQ form on this page with your required quantity and delivery timeline.
- Our technical team will confirm availability, lead time, and provide a formal quotation within 24 business hours.
- Upon PO confirmation, we arrange export documentation (commercial invoice, packing list, COO) and ship via DHL / FedEx / sea freight per your preference.
- Tracking number and inspection report provided upon dispatch.
Why Choose Konmask.com?
- ✅ Specialized in Industrial Automation: 100% focus on PLC, DCS, HMI, and drive components — no generalist catalog noise.
- ✅ Global Export Experience: Serving buyers in 40+ countries with compliant export documentation and Incoterms flexibility (EXW, FOB, CIF).
- ✅ Technical Pre-Sales Support: Our engineers can assist with compatibility verification, firmware matching, and system integration questions.
- ✅ Competitive Lead Times: In-stock items ship within 3–5 business days; sourced items within 2–4 weeks.
- ✅ Secure Payment: T/T, L/C, PayPal, and trade assurance options available.
Frequently Asked Questions
- Q: Is the 6ES7422-1BH11-0AA0 compatible with S7-400H redundant systems?
- A: Yes. This module is fully compatible with S7-400H redundant CPU configurations and supports online replacement (hot-swap) when used with the appropriate UR2-H rack.
- Q: What is the difference between 6ES7422-1BH11-0AA0 and 6ES7422-1BH01-0AA0?
- A: The -1BH11- variant is a hardware revision of the -1BH01- with improved diagnostic functions and enhanced EMC performance. Both are functionally interchangeable in most applications, but always verify with your STEP 7 hardware catalog for your specific CPU firmware version.
- Q: Can this module drive 120 V AC loads?
- A: No. The 6ES7422-1BH11-0AA0 is a 24 V DC transistor output module. For AC load switching, consider the relay output variant 6ES7422-1BL00-0AA0.
- Q: Do you provide a warranty?
- A: Yes. We offer a 12-month warranty against manufacturing defects. DOA (Dead on Arrival) units are replaced or refunded within 30 days of receipt.
- Q: Can you supply the matching front connector?
- A: Yes. The compatible front connector is 6ES7492-1AL00-0AA0 (40-pin screw terminal). Please mention this when submitting your RFQ and we will include it in the quotation.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
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