描述

The 6ES7278-4BD32-0XB0​ is a Siemens SIMATIC S7-1200 SM 1278 IO-Link Master module​ — a 4-port IO-Link V1.1 compliant​ expansion module for the S7-1200 PLC family . It enables connection of up to 4 IO-Link devices​ (sensors/actuators) per module, with a maximum of 8 modules per S7-1200 CPU​ (up to 32 IO-Link devices total). The module supports comprehensive parameterization through the Port Configuration Tool (PCT) V3.2+​ or TIA Portal V13+​ with S7-1200 CPU V4.0+ . Thanks to IO-Link’s backward compatibility with standard sensors, conventional IEC 61131 Type 1 sensors can also be operated on this master .

Key Features

• 4 × IO-Link Master ports​ — IO-Link Specification V1.1 compliant
• Up to 4 IO-Link devices per module​ — 8 modules per S7-1200 CPU = 32 devices max
• Cable length up to 20 m​ per port
• 32 bytes input + 32 bytes output​ per port / per module
• Comprehensive diagnostics​ — DIAG (module status), C1-C4 (port status), Q1-Q4 (channel status), F1-F4 (port fault) LEDs
• Supported data rates​ — COM1 (4.8 kbit/s), COM2 (38.4 kbit/s), COM3 (230.4 kbit/s)
• Configuration via PCT V3.2+ or TIA Portal V13+​ with S7-1200 CPU V4.0+
• SIO mode​ (Standard IO mode) — compatible with IEC 61131 Type 1 standard sensors
• Identification & Maintenance (I&M) data​ — firmware update capable
• 24V DC supply​ — 20.4–28.8V DC operating range, 1W typical power loss
• Compact size​ — 45 × 100 × 75 mm (W×H×D), approx. 150 g
• Full certifications​ — CE, CSA, UL, cULus, FM, RCM, KC, Marine approval
• Country of Origin: China

Technical Specifications

Warranty & After-Sales

• Factory new units: 12 months warranty
• Refurbished units: 3-6 months warranty
• Bench test: 24V DC power-up → DIAG LED green → installed on S7-1200 CPU signal bus → TIA Portal recognition → 4 IO-Link ports tested with actual IO-Link sensors → PCT parameterization verification → full diagnostics LED test → -20°C to +60°C operational test
• Technical support:
  • S7-1200 compatibility check​ — verifying your CPU model (1211C/1212C/1214C/1215C/1217C) and firmware version (V4.0+ required)
  • IO-Link device integration​ — helping connect specific IO-Link sensors/actuators (SICK, Balluff, IFM, Turck, etc.)
  • PCT / TIA Portal configuration​ — step-by-step guidance for parameterizing IO-Link devices
  • Module count planning​ — calculating how many SM 1278 modules you need based on device count
  • Standard sensor compatibility​ — configuring IEC 61131 Type 1 sensors in SIO mode
• Optional: S7-1200 CPU, S7-1200 signal modules, IO-Link sensors/actuators, 24V DC power supply, TIA Portal license, PCT software

Why Choose Our Store

• Genuine Siemens components​ — direct from authorized channels, no counterfeit risk
• Both products in one order​ — switch + IO-Link master, complete network-to-field-device solution
• 6GK5216-0BA00-2AC2​ — German-made SCALANCE XC216 with IEC 62443-4-2 certification, active lifecycle, 16-port industrial managed switch
• 6ES7278-4BD32-0XB0​ — Chinese-made SM 1278 IO-Link master, genuine S7-1200 expansion module
• Global supply network​ with competitive pricing on full Siemens SIMATIC NET & S7-1200 families
• Technical expertise​ in industrial network design (SCALANCE XC series) and IO-Link integration (SM 1278)
• Comprehensive documentation​ — datasheets, dimensional drawings, configuration guides, TIA Portal HSP files
• Responsive support​ — pre-sales compatibility check, post-sales commissioning assistance

Typical System Architecture

┌──────────────────────────────────────────────┐
                    │         Factory Network (PROFINET)            │
                    │                                               │
                    │      6GK5216-0BA00-2AC2                      │
                    │      SCALANCE XC216 Managed Switch            │
                    │      16 × 10/100M RJ45                        │
                    │               │                               │
                    └───────────────┼───────────────────────────────┘
                                    │
                    ┌───────────────┼───────────────────────────────┐
                    │               │     S7-1200 PLC System        │
                    │               │                               │
                    │               │  S7-1200 CPU (V4.0+)          │
                    │               │         │                     │
                    │               │         │ Signal Bus           │
                    │               │         ▼                     │
                    │               │  6ES7278-4BD32-0XB0           │
                    │               │  SM 1278 4×IO-Link Master    │
                    │               │   │    │    │    │             │
                    │               │   ▼    ▼    ▼    ▼             │
                    │               │ [Dev1][Dev2][Dev3][Dev4]     │
                    │               │  (IO-Link sensors/actuators)  │
                    │               │                               │
                    │            DIN rail mount                    │
                    └───────────────────────────────────────────────┘

• 6GK5216-0BA00-2AC2​ builds the factory PROFINET network backbone — connecting multiple PLCs, HMIs, and upper-level systems
• 6ES7278-4BD32-0XB0​ extends the S7-1200 PLC to the IO-Link field level — bridging network to smart sensors/actuators
• Together they enable seamless Enterprise → Factory → Field​ communication

Applications

• Factory network backbone for large-scale production lines
• PROFINET network infrastructure for machine cells and production islands
• Cybersecurity-compliant networks (IEC 62443-4-2) for critical infrastructure
• Redundant ring networks (RSTP) for high-availability systems
• Harsh environment deployments (-40°C to +70°C): outdoor enclosures, mining, steel, chemical plants
• Ethernet/IP + PROFINET mixed-vendor networks

• Smart sensor integration for S7-1200 based machines
• IO-Link valve islands, intelligent motor starters, smart position sensors
• Machine diagnostics & predictive maintenance (parameter + diagnostic data from IO-Link devices)
• Retrofit projects — adding IO-Link capability to existing S7-1200 systems
• Compact machines requiring 4-32 IO-Link devices
• Material handling, packaging machinery, assembly stations