HIMA X-DI3201 32-Channel Digital Input Module

HIMA X-DI3201 is a high-density SIL3 digital input module for the HIMax safety control system. It collects 24VDC discrete signals from field devices such as emergency stop buttons, limit switches and pressure switches, converts dry contact signals into digital values for safety logic processing, and supports channel-level line fault diagnosis.

This hot-swappable module features group isolation and fast signal response. It communicates with the HIMax safety CPU through the backplane safety bus, suitable for ESD, BMS and SIS safety loops in process industries, widely used as maintenance spare parts for safety instrument systems.

Data Parameters

• 1. Brand: HIMA

• 2. Model: X-DI3201, Order No.985210201

• 3. Product Type: 32-Channel Safety Digital Input Module

• 4. Application: HIMax SIS, ESD, BMS safety instrument system

• 5. Feature: SIL3 certified, 32 channels, 24VDC input, line monitoring

• 6. Characteristic: Hot swappable, group isolation, fast response ≤5ms

• 7. Input Threshold: ON≥15VDC, OFF≤5VDC

• 8. Internal Bus: HIMax dedicated safety backplane bus

• 9. Mounting: Plug-in installation for HIMax rack

• 10. Operating Temperature: -20℃ ~ +60℃

Core Functions

• 1. Acquire on/off status signals from emergency stops, limit switches and field sensors.

• 2. Detect open circuit and short circuit faults of each field wiring channel.

• 3. Transmit valid discrete status data to HIMax CPU for safety interlock judgment.

• 4. Support online hot swap without interrupting the operation of redundant safety system.

• 5. Comply with SIL3 safety requirements for critical protection loops in chemical and oil & gas plants.

Application Scenarios

• 1. Petrochemical plant emergency shutdown ESD safety control cabinet.

• 2. Refinery and oil-gas pipeline burner management BMS cabinet.

• 3. Power plant boiler and turbine safety instrument SIS system rack.

• 4. HIMax safety system overhaul and digital input spare replacement.

• 5. SIL3 safety loop discrete signal acquisition and status monitoring unit.

FAQ

• 1. Q: What is HIMA X-DI3201?
      A: It is a 32-channel SIL3 digital input module specially designed for HIMA HIMax safety control platform.

• 2. Q: What signal type does it support?
      A: It is for 24VDC discrete signals from contact switches and proximity sensors.

• 3. Q: Can it be used for old HIMatrix systems?
      A: No, it only adapts to HIMax racks and is incompatible with HIMatrix series.