In depth analysis of HIMA Planar4 system: SIL 4 level hard wired safety logic solution

62100 2 Analog Limit Monitor 0/4... 20 mA 3

3.7 Communication module

Although the core logic of the system is hard wired, Planar4 still provides communication interfaces for alarms, events, and resets.

Module Model Quantity Function Description SIL Level

80105 1 Modbus Communication Module -

80106 1 PROFIBUS DP Communication Module -

80107 1 Ethernet Communication Module (OPC Server) -

80110 1 Reset Module -

The supported communication options include:

OPC DA

RS485 Alarm & Event

PROFIBUS DP

Modbus RTU

4. Typical application scenarios

With the highest safety level of SIL 4 and highly deterministic hard wired characteristics, the HIMA Planar4 system is mainly applied in the following key areas:

High Integrity Pressure Protection System (HIPPS): prevents catastrophic accidents caused by overpressure in pipelines and high-pressure processes.

Emergency Shutdown System (ESD) for Drilling Platforms: Ensure the safe shutdown of personnel and the platform in extreme environments.

Extremely time critical safety circuits: scenarios that require extremely high response speed and cannot tolerate system delays or software scanning cycles.

Main shutdown system: serves as the last line of defense for the factory or the entire production line.