HIMA HIBUS-2 H7506 Bus Terminal Module

Product Description

Model: H7506, Brand: HIMA. It is a HIBUS-2 bus terminal module designed for HIMA H41q / H51q safety PLC systems, serving as a termination wiring unit for HIBUS-2 (RS485) safety bus network. DIN rail mounting structure, equipped with a 25-pin Min-Dsub socket and two 6-pin terminal blocks. Onboard DIP switches to activate/deactivate bus termination resistors. It supports networking for single-channel or redundant PES (Programmable Electronic Systems) controllers. It guarantees signal integrity of safety bus and suppresses signal reflection, compliant with SIL3 safety loop communication requirements. It is an essential wiring component for HIMA HIQuad safety control cabinets.

Technical Specifications

• Model: H7506
• Brand: HIMA (Germany)
• Type: HIBUS-2 RS485 Safety Bus Terminal Module
• Compatible System: HIMA H41q, H51q, HIQuad Safety PLC
• Bus Standard: HIBUS-2 based on RS485
• Interfaces: 1×25-pin Min-Dsub socket; 2×6-pole screw terminal blocks
• Termination Resistor: Selectable onboard bus termination resistor via DIP switch
• Power Supply: 24V DC (powered by system bus)
• Power Consumption: ＜1W
• Mounting: DIN rail mounting (EN50022)
• Protection Class: IP20 (cabinet internal installation)
• Operating Temperature: -20℃ ~ +60℃
• Safety Level: IEC61508 SIL3
• Cable Size: Terminals accept wires up to 2.5mm²
• Features: Redundant bus networking, anti-signal reflection, compact form factor, safety communication ready

Application

Deployed for HIBUS-2 bus termination in HIMA HIQuad SIS safety instrumented systems:

1. SIS safety interlock systems for chemical and refinery plants
2. Safety protection systems for gas power plants and thermal power boilers
3. ESD emergency shutdown systems on offshore oil & gas platforms
4. Safety control cabinets for coal chemical and pharmaceutical hazardous processes
5. Safety protection loops for compressors, furnaces and other critical equipment Function: Installed at both ends of HIBUS-2 bus to match bus impedance and eliminate signal reflection interference, ensuring reliable communication between safety controllers. Supports redundant architecture to stabilize SIS communication links and meet high-reliability communication requirements of safety instrument systems.

Related Series Models

H7506 (HIBUS-2 Bus Terminal) H7505 HIBUS-2 Bus Repeater Module H7510 Bus Wiring Module H7511 Safety Bus Adapter BV7040 HIBUS Communication Cable BV7046 Redundant HIBUS Communication Cable