Siemens 6ES7522-1BH01-0AB0 SIL2 Safety Shutdown Module

Siemens 6ES7522-1BH01-0AB0 S7-1500 Digital Output Module

The 6ES7522-1BH01-0AB0 is a SIMATIC S7-1500 digital output module. This High Feature (HF) module provides 16 transistor outputs at 0.5A each. It is ideal for controlling multiple low-current actuators with precise timing.

Key Technical Specifications

• Brand & Model: Siemens 6ES7522-1BH01-0AB0 (DQ 16x24VDC/0.5A HF)
• Number of Outputs: 16 channels, in 2 groups of 8
• Output Current: 0.5 A per channel, 4 A per group, 8 A total module
• Output Voltage: 24V DC nominal (19.2V - 28.8V range)
• Short-Circuit Protection: Yes, electronic, with ~1 A response threshold
• Switching Frequency: Up to 100 Hz with resistive load
• Power Loss: Typical 2 W

Features, Safety & Physical Data

• Key Features: Isochronous mode, single-channel diagnostics, switching cycle counter, maintenance interrupt.
• Safety Function: Supports safety shutdown up to SIL 2 (IEC 62061) / PL d (ISO 13849-1).
• Connection: Front connector (screw or push-in) ordered separately.
• Dimensions: 35 mm x 147 mm x 129 mm (W x H x D)
• Weight: Approximately 230 grams
• Operating Temperature: -30°C to +60°C (horizontal mount)

Frequently Asked Questions

• Q: What is the isochronous mode for?
  A: It synchronizes output switching with the PROFINET bus cycle. This ensures precise, deterministic control for motion applications.
• Q: What is needed for installation?
  A: You need to order a compatible front connector separately. The module snaps onto an S7-1500 rack. Use TIA Portal for setup.
• Q: Can it drive relays directly?
  A: Yes. Its 0.5A per channel is suitable for driving many industrial relays, solenoids, and indicator lamps directly.