Technical Specifications
| Parameter | Details |
|---|---|
| Product Type | Loadable Software Module (Firmware) |
| Compatibility | Modicon Quantum PLC Series |
| Function | Hot Standby Redundancy Management |
| Media Format | PCMCIA Memory Card (pre-loaded) |
| Memory Requirement | 512 KB minimum |
| Supported Processors | 140CPU65150, 140CPU65260, 140CPU67160 |
| Synchronization Type | Active/Standby with bumpless transfer |
| Switchover Time | 150 ms typical |
| Data Synchronization | Automatic periodic update |
| Diagnostics | Built-in self-test and watchdog timer |
| Operating Temperature | 0 °C to 60 °C |
| Storage Temperature | –40 °C to +85 °C |
| Certifications | CE, UL, ATEX |
Redundancy Functionality
The 140SHS94500 loadable software module delivers automatic hot standby redundancy for mission-critical Modicon Quantum control systems. This firmware resides on a pre-loaded PCMCIA memory card and installs directly into the processor module’s dedicated slot. Upon installation, it enables seamless active/standby configuration between two identically configured Quantum CPUs. Consequently, if the primary processor fails or loses communication, the standby unit assumes control without interrupting production processes.
Bumpless Transfer Mechanism
This redundancy software ensures a bumpless switchover with typical transfer times of only 150 milliseconds, minimizing process disturbances. The 140SHS94500 maintains continuous data synchronization between active and standby processors, updating all I/O states and internal variables periodically. Furthermore, the synchronization process occurs automatically in the background, requiring no user intervention or programming effort.
Processor Compatibility
The 140SHS94500 supports multiple Quantum processor models, including the 140CPU65150, 140CPU65260, and 140CPU67160 high-performance controllers. Users should verify their specific CPU model supports this redundancy firmware before installation. Additionally, both processors in the redundant pair must run identical firmware versions to ensure proper synchronization.
Installation and Activation
Install the PCMCIA card containing the 140SHS94500 firmware into the primary processor’s memory slot before system power-up. The software automatically activates upon boot, initializing redundancy parameters and establishing communication with the standby unit. Users can monitor redundancy status through the programming software or via dedicated status LEDs on the processor faceplate.
Details
| Weight | 1.2 kg |
|---|---|
| Dimensions | 180 × 89 × 482 mm |
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