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Schneider Electric TSXASR402 Safety AS-Interface Monitor Module
Configured for safety input monitoring and relay de-energization control in AS-Interface Safety at Work network,the Schneider Electric TSXASR402 (TSXASR402 Safety AS-Interface Monitor Module) provides direct physical/electrical execution.
HardwareSpecifications
| Parameter |
Specification |
| ModelBrand |
Schneider Electric TSXASR402 |
| Origin |
France (Schneider Electric product line) |
| Weight |
Not specified (refer manufacturer documentation) |
| Dimensions |
DIN rail mounted module, exact dimensions not specified |
| OperatingTemp |
0 degC to +55 degC |
| PowerConsumption |
Max 150 mA at 24 VDC |
| SupplyVoltage |
24 VDC (AS-i network or external safety supply) |
| SafetyCategory |
Category 4 (EN 954-1), SIL 3 (IEC 61508), PL e (ISO 13849-1) |
| ResponseTime |
<= 40 ms safety output de-energization |
| Outputs |
2 independent safety relay outputs (NO contacts) |
| AS-i Interface |
AS-Interface 2.1 or higher compatible |
Industrial Control Backplane and Deterministic Network Behavior
The TSXASR402 integrates into Schneider Electric PLC and safety architectures where AS-Interface segmentation is mapped through deterministic backplane communication layers. In TSX Micro and Premium ecosystems, module-level safety state transitions are synchronized with controller scan cycles and distributed I/O refresh timing. Firmware-level compatibility constraints govern safe-state propagation latency when interfaced with higher-level PLC racks, particularly in mixed AS-i and fieldbus topologies. Backplane bus timing integrity and IO density scaling behavior are dependent on system configuration and safety task prioritization within the controller runtime environment.
Frequently Asked Questions
Q: Can the TSXASR402 maintain safety state during AS-i communication loss?
A: Yes. The module forces relay outputs to de-energized state upon detected AS-i bus interruption or invalid safety telegram conditions.
Q: What is the switching architecture of the safety outputs?
A: It uses 2 independent normally open relay channels designed for redundant safety load interruption.
Q: Is firmware update or parameter download supported via AS-i network?
A: Configuration is performed through AS-i safety configuration tools; runtime firmware update capability depends on system integration platform and is not natively field hot-swappable.
FieldInstallationGuidelines
The module shall be mounted on a 35 mm DIN rail with mechanical locking engaged on both ends. AS-i flat cable polarity must be strictly maintained according to yellow AS-i trunk wiring conventions. Shielding continuity should be preserved across the AS-i segment with low impedance grounding at a single reference point to avoid ground loop currents.
Safety relay outputs must be wired using force-guided or certified safety contactors when driving external loads. Separation between AS-i communication wiring and power conductors is required to minimize induced noise coupling. All commissioning must verify that safety input devices correctly transition the module into defined safe state within specified response time <= 40 ms.
