Description
Core Product Summary
The HIMA X-DO 32 01 (also identified as X-DO3201) is a safety-related digital output module engineered for integration within the HIMax safety-instrumented architecture. Equipped with 32 solid-state digital output channels, the module provides reliable 24 V DC switching to control critical actuators, relays, indicators, and emergency shut-off devices.
Designed to comply with high safety integrity requirements up to SIL 3 in accordance with IEC 61508, the X-DO 32 01 utilizes internal safety switches connected in series to guarantee a de-energized safe state upon command or fault detection. The module features integrated automated diagnostic testing—including short-circuit monitoring—to maintain continuous coverage across safety loops without interrupting process operations.
Key Technical Specifications
| Parameter | Specification |
| Manufacturer | HIMA Paul Hildebrandt GmbH |
| Model / Order Code | X-DO 32 01 / X-DO3201 |
| System Compatibility | HIMax Programmable Electronic System |
| Product Type | Safety Digital Output Module |
| Number of Channels | 32 digital outputs (non-galvanically isolated from each other) |
| Nominal Output Voltage | 24 V DC |
| Output Current Rating | 0.5 A nominal per channel |
| Safety Architecture | Three safety switches in series per channel (2-fault-tolerant to safe state) |
| Safe State | De-energized (0 V DC) |
| Safety Compliance | SIL 3 (IEC 61508 / IEC 61511), PL e / Cat. 4 (EN ISO 13849-1) |
| Integrated Diagnostics | Short-circuit (SC) detection, continuous self-tests |
Detailed Product Overview
The HIMA X-DO 32 01 is designed to execute critical switching commands in process safety instrumented systems (SIS). Within the HIMax architecture, digital output modules serve as the final control interface between the safety central processing unit and field actuators, such as solenoid valves, trip relays, and alarm annunciators.
To satisfy high-integrity functional safety standards, the module employs a redundant internal switching architecture. Each of the 32 channels uses three safety switches in series. This configuration ensures that even in the presence of multiple hardware component failures, the channel can reliably transition to its safe de-energized state. The module continuously runs background diagnostic routines to detect external field wiring conditions, such as short circuits, and reports channel status to the central processor.
If an individual channel error or system communication failure occurs, the module defaults the affected outputs to the safe state while allowing unaffected channels to continue normal execution where configured.
Dimensions, Mounting & Connection Notes
- Mounting Method: Directly plugs into a dedicated slot on a HIMax system baseplate.
- Field Terminal Connection: Interfacing requires a slot-specific connector board attached to the baseplate. Optional Field Termination Assemblies (FTAs) can be joined via system cables.
- Electrostatic Precaution: Electrostatic discharge (ESD) protective practices—such as using an grounded wrist strap—must be observed when handling or replacing the module.
- Power & Isolation: Operating power is supplied via the system baseplate backplane; field outputs share a common reference within the module structure.
X-DO 32 01
X-DO 32 01
System Compatibility & Integration Requirements
| Item / Dependency | Verified Compatibility or Requirement | Practical Note |
| Baseplate / Rack | HIMax Baseplate | Fits standard HIMax baseplate slots (excluding dedicated system bus slots). |
| Interfacing System | Connector Board & System Cable / FTA | Requires a compatible HIMax connector board for field wiring termination. |
| Engineering Tool | SILworX Programming Environment | System parameters, channel configuration, and diagnostics are set via SILworX. |
| System Logic Unit | HIMax CPU Module (e.g., X-CPU 31) | Exchanges logic commands and diagnostic data over the internal system bus. |
FAQ
What is the primary function of the HIMA X-DO 32 01?
The HIMA X-DO 32 01 is a safety-related digital output module used in HIMax safety systems to control 24 V DC field devices in high-integrity automation loops.
How many channels does the X-DO 32 01 provide?
The module features 32 independent digital output channels.
What safety ratings apply to the HIMA X-DO 32 01?
The module is certified by TÜV for safety-critical applications up to SIL 3 (IEC 61508 / IEC 61511) and PL e / Category 4 (EN ISO 13849-1).
Which software tool is used to configure the module?
The module is configured, programmed, and monitored using HIMA’s SILworX engineering software.
What is the defined safe state for the output channels?
In accordance with de-energized-to-trip safety principles, the safe state for all output channels is the de-energized (0 V DC) condition.
Does the X-DO 32 01 require additional components for field wiring?
Yes, operation requires installation onto a compatible HIMax baseplate with a dedicated connector board and optional Field Termination Assembly (FTA) cabling.
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