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Real-Time Clock and Scheduling for SIMATIC S5 Systems
The Siemens 6ES5380-7AA11 time module provides real-time clock functionality and programmable time-based control for S5-100U and S5-95U controllers. This module enables scheduled operations, shift management, and time-stamped event logging. It integrates a battery-backed clock for accurate timekeeping during power outages.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Model | 6ES5380-7AA11 |
| Series | SIMATIC S5 |
| Product Type | Time Module / Real-Time Clock (RTC) Module |
| Clock Accuracy | ±5 seconds per day (at 25°C) |
| Time Format | Hours, minutes, seconds (24-hour format) |
| Date Format | Day, month, year |
| Battery Backup | Lithium battery (integrated) |
| Battery Life | Approx. 5 years (typical) |
| Programmable Switching Points | 8 (daily or weekly repetition) |
| Time Base | 1 second to 24 hours |
| Outputs | 8 x 24V DC (0.5A each) |
| Status Indicators | 1 x green LED (module active) |
| Power Supply | 5V DC via backplane bus |
| Current Consumption | 5V DC / 200mA (max) |
| Weight | 0.4 kg |
| Dimensions (W x H x D) | 25 x 120 x 116.4 mm |
| Operating Temperature | 0°C to 60°C |
| Protection Rating | IP20 |
Accurate Timekeeping and Battery Backup
The Siemens 6ES5380-7AA11 maintains time with ±5 seconds per day accuracy at room temperature. An integrated lithium battery ensures continued timekeeping for approximately five years during power loss. This backup eliminates the need for manual time resetting after power interruptions.
Programmable Switching Schedules
This module provides eight programmable switching outputs for automated time-based control. Each output activates according to daily or weekly schedules set via the S5 CPU. Users can configure start times, stop times, or pulse durations for each point.
Flexible Application Support
The time module handles applications such as lighting control, shift change signals, and equipment warm-up scheduling. It also supports timestamping of events for maintenance logging and process analysis. The time base ranges from 1 second to 24 hours for diverse scheduling requirements.
Simple Integration and Monitoring
This module plugs directly into S5-100U and S5-95U racks via the standard backplane bus. A green LED indicates normal module operation for quick status verification. The outputs drive small loads directly or interface with contactors for larger power switching.