MeloAuto-Trusted PLC & DCS Parts Supplier
Discrete Logic Processing for S5 Automation Systems
The Siemens 6ES5480-1AA22 digital control board executes discrete logic operations for S5-135U and S5-155U programmable controllers. This board handles complex boolean equations and sequence control with high-speed processing. Automated machinery and processes depend on this board for precise and repeatable control decisions.
Processing Performance and Logic Capabilities
This digital control board features a dedicated logic processor operating at 10 MHz for high-speed evaluation. The unit integrates 8 KB of RAM for logic storage and 4 KB of EPROM for firmware. A built-in 16-bit counter module handles high-speed pulse counting applications. Furthermore, the board executes boolean operations at speeds under 100 nanoseconds per instruction.
| Parameter | Specification |
|---|---|
| Brand | Siemens |
| Model | 6ES5480-1AA22 |
| Processor Type | Dedicated logic processor |
| Clock Frequency | 10 MHz |
| Logic Storage RAM | 8 KB |
| Firmware EPROM | 4 KB |
| High-Speed Counters | 2 (16-bit) |
| Boolean Speed | < 100 ns per instruction |
| Digital Inputs | 16 |
| Digital Outputs | 16 |
| Dimensions (W x H x D) | 50 mm x 125 mm x 118 mm |
| Weight | 0.40 kg |
| Power Consumption | 5 V DC at 250 mA |
| Compatible CPUs | S5-135U, S5-155U |
I/O Interface and Connectivity
The Siemens 6ES5480-1AA22 integrates 16 digital input channels and 16 digital output channels on the board. The inputs accept 24 V DC signals with a nominal current of 7 mA per channel. Each output switches up to 0.5 A at 24 V DC with short-circuit protection. Additionally, the board provides two high-speed counter inputs for pulse train applications.
Logic Execution and Program Storage
Users program the logic functions using the STEP 5 programming software. The board stores user logic in its 8 KB RAM and retains it through a lithium battery backup. The logic executes independently of the main CPU, reducing the overall scan time. Moreover, the board supports both synchronous and asynchronous operation modes.
Diagnostic Features and Status Indication
Front-panel LEDs indicate power, logic execution status, and error conditions. A built-in self-test routine verifies the logic processor and memory integrity. The board stores the last 32 logic events in a diagnostic buffer. Additionally, the board provides a hardware watchdog timer for fail-safe operation.
Installation and System Integration
You can install this digital control board in any standard S5-135U or S5-155U rack slot. The board automatically adapts to the backplane bus speed during initialization. For optimal performance, place the board close to associated I/O cards. Always verify the logic program matches your application requirements before installation.