SIEMENS 6GK1243-3SA00 Communications Processor Module

FAQ

1. What is the main purpose of the 6GK1243-3SA00?

It connects SIMATIC S5 (S5-90U, S5-95U, S5-100U) and ET 200U programmable logic controllers to an AS-Interface (Actuator-Sensor-Interface) network, allowing the PLC to control field devices and sensors.

2. Can I use the CP 2433 (6GK1243-3SA00) together with an AS-Interface Extender?

• No. Siemens issued an official technical block stating that using the CP 2433 (6GK1243-3SA00) together with the AS-Interface Extender (6GK1210-1SA00) is blocked/not permitted in application configurations.

3. What are the key technical specifications?

• Master Profile: Profile M1 (with function block) or M0 (without function block).

• Connection: 24-pin socket for connector with terminal clamp.

• Data Transfer: Handles data exchange across up to 31 slaves on the AS-Interface ring.

4. Is the product still active or obsolete?

The SIMATIC S5 series and the CP 2433 are legacy/discontinued products from Siemens. Replacement units are typically sourced via industrial surplus, refurbished markets, or specialized repair providers.

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