HIMA F8627 Part No. 984862702 communication module is an Ethernet communication unit adapted for H41q/H51q HIQuad safety programmable electronic systems. F8627 handles data exchange between H41q/H51q safety controllers and upper-level DCS, HMI, programming workstations, realizing isolated transmission of safety-side and non-safety-side network data. F8627 984862702 supports SafeEthernet and Modbus TCP protocols, meets SIL3 safety level requirements, and can be deployed redundantly in H41q/H51q racks for data forwarding and remote debugging of Safety Instrumented Systems (SIS).

• F8627 984862702 supports SafeEthernet, adding safety verification mechanism based on standard Ethernet to ensure reliable transmission of safety signals.
• The module supports redundant hot standby configuration. Two F8627 modules run in parallel, and communication link of H41q/H51q system will not be interrupted if one module fails.
• The hardware is equipped with complete diagnostic circuits to monitor communication link and module status in real time, and fault information is uploaded to the system via LEDs.
• F8627 is compatible with ELOP II programming software. Users can download programs and perform online monitoring for H41q/H51q controllers directly via Ethernet.
• Multi-protocol compatibility: Modbus TCP master/slave mode can be switched freely for connection with mainstream DCS and SCADA platforms, reducing protocol conversion equipment on site.
• Modular hot-swap architecture. Maintenance can be performed without interrupting the operation of the whole H41q/H51q safety system.

• F8627 984862702 is specially developed for H41q/H51q HIQuad safety system and cannot operate independently without H41q/H51q CPU.
• It supports isolation between safety network and ordinary industrial network. Safety data and non-safety data are transmitted separately to prevent non-safety network from interfering with safety loops.
• Built-in hardware watchdog automatically resets the link in case of communication abnormality to avoid network lock-up.
• Supports network ring topology and adopts MRP protocol to realize rapid network fault recovery.
• Local configuration via DIP switches. Basic communication parameters can be set without software for convenient field commissioning.
• CRC check and sequence number check are added to all safety-related communication messages to identify message loss, duplication and out-of-sequence issues.

• ESD emergency shutdown systems in petrochemical industry: H41q/H51q safety controllers upload alarms and process status to upper DCS via F8627.
• F&G fire and gas detection systems for oil & gas stations: F8627 is used for cross-network transmission and remote monitoring of flame and combustible gas signals.
• Safety protection systems for boilers and steam turbines in power plants: SIS systems rely on F8627 to upload safety data to operator stations.
• Safety interlock systems for pharmaceutical and fine chemical industries: F8627 ensures stable transmission of SIL3 interlock signals.
• Safety instrument system renovation projects in refineries and coal chemical plants, used for connection between old and new control systems to realize external data interaction of H41q/H51q systems.

• F8627 984862702: Ethernet communication module for H41q/H51q, focusing on high-speed SafeEthernet and Modbus TCP.
• F8621A: Serial communication module for H41q/H51q, communicating via RS485 bus with low transmission rate, suitable for short-distance serial device connection, no Ethernet support.
• F8627X: Upgraded version of F8627 with expanded protocols and better OPC A&E support. Minor modification on hardware interface layout, same rack mounting dimension.
• F8628X: High-speed redundant communication module, focusing on HSR redundant bus interconnection between controllers, not directly connected to upper DCS.

• F8650X, H51q Central CPU Module
• F8652X, H41q Central CPU Module
• F7126, H51q System Power Module
• F7130A, H41q System Power Module
• F7131, Power Monitoring Module
• B5233-1, H51q-HS Rack Assembly
• B5233-2, H51q-HRS Rack Assembly
• BV7053, RJ12 HSR Communication Cable
• F3231, Digital Input Module
• F3330, Analog Input Module

Q: Can F8627 984862702 be used independently?

A: No. F8627 must be installed in H41q/H51q rack and used with corresponding HIMA CPU modules, and cannot run independently.

Q: How many modules can be used for redundant communication of F8627?

A: Two F8627 984862702 modules are normally adopted on site to form redundant communication links and deployed in H41q/H51q dual-CPU architecture.

Q: Can F8627 Modbus TCP work as master station?

A: F8627 supports both Modbus TCP master and slave modes, and the mode can be switched according to the function block configuration inside ELOP II software.

Q: Does the firmware of F8627 984862702 need to match the operating system version of H41q/H51q?

A: Yes. The firmware version of F8627 needs to be compatible with the OS version of H41q/H51q system. Mismatched versions will cause communication interruption or diagnostic alarms.

Q: Can F8627 and F8627X be directly interchanged?

A: Hardware rack mounting positions are compatible, but there are differences in firmware and function block definitions. Re-downloading ELOP II programs and testing are required for direct replacement.

Q: Can the Ethernet port of F8627 be directly connected to ordinary office LAN?

A: It is not recommended. Safety network and office network shall be physically isolated. F8627 carries SIL3 safety data, and direct access to ordinary networks will bring safety risks.

Q: What information needs to be confirmed when purchasing F8627 984862702?

A: It is required to confirm whether the target system is H41q or H51q, system OS version, rack slot quantity, whether redundant configuration is required, and safety specification requirements of the project industry.

Q: Does the module support online hot replacement after F8627 fails?

A: Online replacement of a single F8627 is supported under redundant configuration, and the replacement operation will not interrupt the safety logic operation of H41q/H51q.

• F8650X Central Processor Module
• F8652X Central Processor Module
• F8621A Serial Communication Module
• F8627X Ethernet Communication Module
• F8628X High-speed Redundant Communication Module
• F7126 Power Module
• F7130A Power Module
• F7131 Power Monitoring Module
• F3231 Digital Input Module
• F3330 Analog Input Module
• F3430 Digital Output Module
• F3530 Analog Output Module
• B5233-1 H51q-HS Rack Assembly
• B5233-2 H51q-HRS Rack Assembly
• B4236 H41q Rack Kit

• Power off the module before installing F8627 984862702 to avoid electrostatic damage to backplane interface.
• DIP switch modification must be operated under power-off state. DIP switch changes will not take effect immediately after power-on.
• When F8627 is used in SIL3 safety loops, periodic tests and diagnostic verification must be carried out in accordance with HIMA specifications.
• Only BV7053 special cables can be used for HSR high-speed serial interface; ordinary RJ12 wires cannot be used instead.
• Distinguish SafeEthernet port and HSR interface during network wiring. The two types of interfaces cannot be cross-connected.
• The module storage environment shall be free of dust, corrosive gas and severe vibration, and kept dry.

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