The SIEMENS SIMATIC NET CP 243-2, designated as 6GK7243-2AX01-0XA0, is a dedicated communications processor designed to integrate the S7-200 PLC family into AS-Interface networks. This compact module acts as an AS-i master, enabling seamless data exchange with up to 62 digital or analog slaves over a single two-wire cable. It supports both standard and extended addressing modes, and is engineered for high reliability in factory automation and process control environments. The CP 243-2 simplifies wiring and reduces installation costs while providing real-time monitoring and control capabilities, making it a core component for decentralized I/O architectures.
| Parameter |
Specification |
| Product Type |
Communications Processor (AS-Interface Master) |
| Model Number |
6GK7243-2AX01-0XA0 |
| Compatible PLC |
SIEMENS SIMATIC S7-200 (CPU 22x series) |
| Network Interface |
AS-Interface (Actuator-Sensor Interface) per IEC 62026-2 |
| Max. Number of Slaves |
62 (standard mode) or 31 (extended addressing mode) |
| Data Transfer Rate |
167 kbps (AS-Interface cycle time approx. 5 ms for 62 slaves) |
| Power Supply |
Via S7-200 backplane bus (5 V DC, 100 mA typical) |
| AS-Interface Voltage |
30 V DC (supplied by external AS-i power supply unit) |
| Connector Type |
AS-Interface: 2-pin screw terminal; PLC: Expansion bus connector |
| Diagnostics |
4 LEDs: AS-i Power, AS-i Fault, Slave Fault, Module Status |
| Supported I/O Data |
Up to 124 bytes input / 124 bytes output per cycle (with 62 slaves) |
| Addressing Modes |
Standard (1A/1D per slave) and Extended (4A/4D per slave) |
| Operating Temperature |
0 °C to +60 °C (horizontal mounting); 0 °C to +50 °C (vertical) |
| Storage Temperature |
-40 °C to +70 °C |
| Relative Humidity |
5% to 95% (non-condensing) |
| Protection Class |
IP20 (for use in control cabinets) |
| Dimensions (W x H x D) |
71 mm x 80 mm x 62 mm (approx.) |
| Weight |
Approx. 120 g |
| Certifications |
CE, cULus, AS-Interface certification |
| Standards |
IEC 61131-2, EN 50178 |
What Does Our Clients Say
Mitsubishi MR-J4
Laura Navas
Great product!
2019/12/01
Keyence sensor
EQDR SALES
Original and fast!
2020/02/22