HIMA 80105 Communication Module

Configured for serial and network data exchange within Planar4 automation architectures, the HIMA 80105 (80105 Communication Module) provides direct physical/electrical execution of Modbus RTU and Modbus TCP protocol translation.

Hardware Specifications

Suffix Breakdown & Model Matrix

• 80105: Standard interface unit for Planar4 integration.
• Compatibility: Engineered for hardware-level bus communication with all Planar4 system modules.
• Protocol Handling: Supports both serial (RTU) and Ethernet-based (TCP) connectivity without requiring external gateway hardware.

Safety Control and SIS Characteristics

• SIL1 certification: The module is certified to SIL1 safety standards, ensuring that data communication between Planar4 controllers and external devices is handled with defined diagnostic coverage for lower-risk safety loops.
• Triple modular redundancy (TMR) 2oo3 architecture: While the unit functions as an interface module, it is designed to operate within Planar4 safety fabrics, facilitating deterministic signal handshaking between the safety system and external Modbus nodes.
• Galvanic isolation: Integrated electrical decoupling between the Modbus interface ports and the Planar4 backplane protects the safety controller from common-mode voltage spikes and ground loops transmitted through external network cabling.
• Fail-safe state execution: In the event of a communication timeout or internal diagnostic fault, the module is configured to maintain a deterministic communication state, preventing corrupt data transmission from influencing the safety-related logic of the host system.

Frequently Asked Questions

Q: Is the 80105 compatible with safety-critical loops?

A: The module is SIL1 rated and suitable for integration into designated safety-related applications. Ensure the risk assessment for the specific loop confirms that SIL1 diagnostic coverage meets the application requirements.

Q: Can the module handle concurrent Modbus RTU and TCP requests?

A: The module architecture supports both protocols, but ensure the system bus load and polling frequency are configured within recommended limits to prevent communication latencies that could affect loop timing.

Field Installation Guidelines

• Mounting: Secure the compact module within the Planar4 cabinet. Ensure the 142 mm x 115 mm profile is accommodated with adequate clearance for cable routing and heat dissipation.
• Grounding: Connect the chassis ground to the cabinet’s instrument earth bus. Robust grounding is mandatory to maintain the integrity of the galvanic isolation barriers against high-frequency electromagnetic interference.
• Wiring: Terminate Modbus RTU serial connections and Ethernet cables using shielded conductors. Maintain at least 150 mm of separation from high-voltage AC or inductive load power conduits to prevent packet loss and communication bus jitter.