• Siemens 6GK1243-0SA20
  • Siemens 6GK1243-0SA20
  • Siemens 6GK1243-0SA20
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Siemens 6GK1243-0SA20 CP2430 AS-Interface Master Module

Siemens 6GK1243-0SA20 CP2430 AS-Interface Master Module

Description

The Siemens 6GK1243-0SA20, also identified as the CP2430, is a dedicated AS-Interface (AS-i) master module designed for integration with Simatic S5 programmable logic controllers. This module acts as a bridge...

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SKU: 6GK1243-0SA20
Vendor: Siemens
Category: AS-Interface Master Module
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Description

The Siemens 6GK1243-0SA20, also identified as the CP2430, is a dedicated AS-Interface (AS-i) master module designed for integration with Simatic S5 programmable logic controllers. This module acts as a bridge between the S5 backplane and field-level sensors and actuators, facilitating efficient communication within industrial control environments. By managing the AS-i network traffic, the CP2430 offloads communication overhead from the host CPU, ensuring reliable and deterministic data exchange for complex automation tasks.

Features

  • Dedicated AS-Interface master functionality for Simatic S5 systems.
  • Supports connection to up to 31 cyclic slave nodes on the AS-i bus.
  • Provides high-speed polling of binary inputs and execution of output commands.
  • Features dual-channel isolation to protect the S5 backplane from field-side voltage transients.
  • Optimized for integration with S5-115U, S5-135U, and S5-155U controller series.

Applications

This module is engineered for use in demanding industrial sectors, including petrochemical processing, power generation, and heavy machinery automation. It is particularly effective in applications requiring the consolidation of distributed field signals into a centralized S5 control architecture, minimizing wiring complexity and enhancing diagnostic capabilities.

Technical Specifications

Model 6GK1243-0SA20 (CP2430)
Brand Siemens Simatic S5
Network Interface AS-Interface Master (ASI-Master)
Host Interface Simatic S5-115U / -135U / -155U Backplane
Transmission Rate 167 kbit/s
Power Consumption 5 VDC (via backplane), 200 mA nominal
Operating Temperature 0 to 60 deg C
Lifecycle Status Discontinued

Installation Guidelines

  • Ensure the S5 rack is powered down before inserting or removing the CP2430 module to prevent electrical damage.
  • Verify that the module is fully seated in the designated backplane slot to ensure proper bus contact.
  • Maintain proper grounding practices within the S5 cabinet to mitigate electromagnetic interference (EMI).
  • Route AS-i network cables away from high-voltage power lines to prevent signal crosstalk and communication errors.
  • Ensure adequate ventilation within the control cabinet to maintain operating temperatures within the specified 0 to 60 deg C range.

FAQ

Is the Siemens 6GK1243-0SA20 still supported by the manufacturer?

No, this module is officially discontinued by Siemens. Maintenance and replacement typically rely on refurbished units or legacy inventory.

Which S5 controllers are compatible with this module?

The CP2430 is designed for use with the Simatic S5-115U, S5-135U, and S5-155U programmable logic controller systems.

Does this module require external power?

The module draws its primary operating power (5 VDC) directly from the Simatic S5 backplane bus.