ELOP II (often abbreviated as ELOPII) is a specialized engineering/configuration software for the German HIMA (Black Horse) safety control system, used for programming, configuring, downloading, online monitoring, and maintenance of HIMA's SIS (Safety Instrumented System). It is a standard software for H41q/H51q (HIQuad) and HIMax series systems.

1. Basic Information

Full software name: ELOP II (Engineering Logic Operation Package II)

Brand / Developer: HIMA Paul Hildebrandt GmbH (Germany)

Current mainstream version: ELOP II V5.6 (Latest stable version)

Compatible systems:

✅ HIQuad: H41q, H51q (QMR quadruple redundancy)

✅ HIMax: F35, F40, F50, F60, etc. series

Operating environment: Windows (7/10/11, 32/64 bit)

Safety certification: SIL3 / TÜV AK6 (Compliant with IEC 61508)

II. Core Functions

Engineering Configuration (IEC 61131-3)

Support for Function Block Diagram (FBD), Ladder Diagram (LD), Structured Text (ST)

Built-in SIL3 certified standard library: logic, arithmetic, PID, counter, timer, redundancy handling, etc.

Variable definition, address allocation, I/O module configuration (such as F3216, F3336, DOZ7136/7138, etc.)

Offline development and simulation

Programming can be completed without connecting hardware → compilation → simulation → debugging

Logic verification, syntax check, simulation test, and early detection of design errors

Online download and operation

The compiled safe code is generated and downloaded to the HIMA controller via serial port / Ethernet

Online modification and download (TÜV certification): no need for full-point re-testing, supports logic update during operation

Online monitoring and diagnosis

Real-time I/O status, forced signals, variable value monitoring

Fault diagnosis: open circuit / short circuit, module failure, communication anomaly, SOE event recording (requires coordination with the host computer)

System status: CPU redundancy, power supply, fan, watchdog (WD) monitoring

Documentation and version management

Automatically generate I/O list, logic diagram, variable table, cross-reference

Version control, engineering backup / restoration, user permission management

III. Typical Application Scenarios

Petrochemical: ESD emergency stop, BMS burner management, F&G fire gas interlock

Power: Boiler protection, turbine interlock, generator safety control

Oil and gas long-distance pipeline: Station ESD, valve interlock, compressor protection

Coal chemical / pharmaceutical: High-risk process safety interlock, reaction vessel protection

IV. Association with the Model You Previously Inquired About

The terminal boards you previously checked, such as DIZ7116/3236, DOZ7136, DOZ7138, etc., all need to be configured in ELOP II as follows:

Add the corresponding I/O module (such as F3236, F3330) in the hardware configuration

Allocate terminal board channels to the module I/O addresses

Write logic and associate with on-site signals (DI/DO)

Download the program and test the communication between the terminal board and the module online

V. Summary of Key Features

✅ SIL3 safety certification: Both software and function blocks have been certified by TÜV

✅ Full-process engineering tools: Configuration → simulation → download → monitoring → documentation integration

✅ Redundant system support: Compatible with H41q/H51q quadruple redundancy, supports non-disruptive switching

✅ Industrial-grade reliability: Specifically designed for SIS, meets high availability and fault-tolerance requirements