HIMA HIMax X-SB 01 System Bus Module



HIMA HIMax X-SB 01 System Bus Module

Safety regulations and environmental requirements

（1） Core security requirements

Expected use and protective measures

The module is used to assemble safety related controller systems and must comply with SELV/PELV safety ultra-low voltage standards. Additional explosion-proof measures must be taken for use in Ex areas;

ESD protection: Only personnel with knowledge of electrostatic protection are allowed to operate. ESD wristbands should be worn during work, and when idle, they should be stored in anti-static packaging to avoid damage to the module caused by static electricity.

Residual risk and emergency response

Residual risk sources: engineering design defects, user program errors, wiring faults, which need to be avoided through compliant configuration and regular testing;

Emergency principle: The module is a component of the safety system, and in the event of a malfunction, the system must enter a safe state (such as emergency shutdown). It is prohibited to perform operations that obstruct the safe operation of the system in emergency situations.

（2） Environment and installation conditions

Specific parameter specifications for the required type

The protection level IP20 (IEC 60529) needs to be installed inside the control cabinet to prevent dust and condensation water

If the working temperature exceeds 0...+60 ° C, it needs to be downgraded to avoid module overheating

Storage temperature -40...+85 ° C must meet this range during transportation or idle use

Pollution level II (IEC/EN 61131-2) is applicable to non-conductive dust environments

Evaluation of heat dissipation and insulation performance is required in high-altitude areas with an altitude of less than 2000 meters

Supply voltage 24 VDC (-15%...+20%) ripple factor ≤ 5%, requires independent power supply

Product Description and Core Features

（1） Basic characteristics of module

Functional positioning and compatibility

Slot 1 and Slot 2 can only be inserted into the HIMax motherboard, supporting two operating modes:

Single module (Mono mode): Only one system bus works;

Dual module (Redundancy mode, recommended default): 2 redundant system buses to improve availability;

Safety certification: certified by T Ü V, supporting SIL 3（IEC 61508/61511/62061）、Cat. 4（EN 954-1）、PL e（EN ISO 13849-1）， Data transmission adopts security related protocols.

Fault response mechanism

If a system bus fails, the redundant bus will automatically take over communication (dual modules need to be pre configured) to ensure uninterrupted data transmission; The module has built-in self detection function, which can identify hardware/software faults and power supply abnormalities. Fault information is displayed through LED indicator lights and SILworX diagnostic interface.

（2） Hardware Structure and Interface

core component

Security related processor system: 1oo2 architecture (1 out of 2), controls and monitors a single system bus (Slot 1 corresponds to bus A, Slot 2 corresponds to bus B), the operating system and fault logs are stored in non-volatile memory and can be read through SILworX;

Interface configuration:

Number of Interface Types, Functions, and Parameters

PADT service interface 1 connects to programming and debugging tools (10/100 Base-T, does not support automatic crossover, point-to-point requires crossover, IP address can be configured)

System bus interface (Up/Down) 2 connects to other baseboards (supports automatic crossover, requires CAT 5e or above Ethernet cable, RJ-45 interface)

Diagnostic interface (Diag) 1 reserved for future expansion use

Grouping and meaning of LED indicator lights

There are a total of 6 sets of LEDs on the front end of the module, and a full light test will be conducted when powered on. The status meanings of each indicator light are as follows:

Module status indicator lights (Run/Error/Stop/Init):

Run (green): Constant light indicates normal operation (RUN state), slow flashing (600ms on/600ms off) indicates STOP/OS_SOWNLOAD state;

Error (red): Constant light/slow flashing indicates detection of internal faults (such as hardware failure, power supply abnormality);

Stop (yellow): Constant light indicates STOP/valid configuration, slow flashing indicates STOP/invalid configuration;

Init (yellow): Constant light indicates Initiate initialization, slow flashing indicates LOCKED locked state.

Redundant indicator lights (Ess/Red):

Ess (yellow): Always on indicates single bus operation (removing modules can cause system failure), slow flashing indicates redundant configuration but backup modules are unavailable;

Red (yellow): Always on indicates redundant operation (bus ID synchronization successful), off indicates no redundancy.

Other indicator lights: Rack connection light (Up/Down, green/yellow indicates physical/logical connection status), Slot light (3-18, green indicates slot has module and connection is normal), Ethernet light (PADT/Up/Down/Diag, green flashing indicates data transmission, yellow indicates speed/duplex mode).

（3） Key technical parameters

Category parameter values

Maximum power supply current 0.65 A

Dimensions (H × W × D) 310 × 29.2 × 230 mm

Weight approximately 1.2 kg

Maximum relative humidity of 95% (without condensation)

Installation and configuration process

（1） Module installation and removal

Installation prerequisites

It is necessary to cooperate with the dedicated connector board on the motherboard (slot 1 on the left board and slot 2 on the right board), and label the number of supported slots (10/15/18 slots) and slot IDs on the connector board;

It is necessary to install matching fan components to ensure forced heat dissipation (refer to the HIMax system manual). The time to open the fan bracket cover during operation should be less than 10 minutes to avoid heat dissipation failure.

Operation steps

Installation: Open the fan bracket cover → Insert the top of the module into the hook guide → Rotate the module downwards until it locks into place → Tighten the fixing screws → Close the cover and lock it;

Disassembly: Open the cover plate → Loosen the screws → Rotate the module upwards to detach from the guide rail → Remove the module → Close the cover plate.

（2） SILworX configuration configuration

Core Parameters (Module tab)

Network parameters: configure IP address, subnet mask, default gateway, rate mode (recommended automatic negotiation), flow control mode (recommended automatic negotiation);

Safety related parameters:

MAC Learning: Default "Conservative" (ARP cache locking for at least one aging cycle to prevent ARP spoofing), "Tolerance" mode is suitable for scenarios that require fast updates of MAC addresses;

ICMP mode: default "Echo Response" (supports ping testing, balancing security and diagnosis), "No ICMP Responses" has the highest security but cannot ping detect.

Routing Configuration (Routing tab)

Supports up to 8 routing entries, requiring configuration of destination IP address, subnet mask, and gateway for cross network communication (such as connecting to other baseboards or external devices).

Operation, Maintenance, and Lifecycle Management

（1） Daily operation and diagnosis

operation monitoring

The module does not require direct operation and can be remotely controlled through the PADT tool. The running status can be viewed in real-time through the LED (such as the Run green light indicating normal), and detailed fault information (such as IP address conflicts and bus interruptions) can be read on the SILworX diagnostic interface.

Fault handling

Common faults: IP address conflict (PADT and H/F/Col lights flashing slowly at the same time) → Reconfigure IP; Bus transient interference (Up/Down lights flashing slowly) → Check cable connection or replace CAT 5e cable;

Initialization phase fault: If the fault still reports after initialization (such as the Error light being constantly on), it is necessary to check the module power supply, configuration parameters, or replace the module.

（2） Maintenance and scrapping

regular maintenance

Operating system update: Load the latest version of the operating system during system downtime (modules need to be in STOP state, refer to SILworX online help);

Proof Test: It needs to be performed every 10 years to ensure that the module's safety functions are functioning properly (see HIMax Safety Manual HI 801 003 E for detailed procedures).

Transportation, storage, and scrapping

Transportation/Storage: Original factory packaging (anti-static and flame-retardant) is required to avoid mechanical impact and static electricity;

Scrap: Industrial users need to dispose of modules containing electronic components in accordance with environmental protection requirements. They can contact HIMA to sign a scrap agreement, which prohibits the arbitrary disposal of modules containing electronic components.