The Siemens 6GK7243-1EX00-0XE0 is a CP 243-1 communication processor designed to connect SIMATIC S7-22X (S7-200) controllers to Industrial Ethernet. It is a plug-in expansion module that mounts directly on the S7-200 CPU's right-side expansion bus, enabling S7 communication, PG/OP communication, and basic Ethernet connectivity for the legacy S7-200 platform.
Item No :
6GK7243-1EX00-0XE0Order(MOQ) :
1Payment :
EXWProduct Origin :
OriginalShipping Port :
Wuhan, Hubei, ChinaLead Time :
3-5 daysWeight :
0.2kg6GK7243-1EX00-0XE0 SIEMENS
New in stock
Origin and Brand New
Payment Method: TT.Western Union
Shipping Method: DHL\UPS\Fedex\EMS\Others
Specification
| Brand/Manufacturer | Siemens |
| Part Number | 6GK7243-1EX00-0XE0 |
| MOQ | 1PC |
| Price | The price is not real, please inquiry |
Trade Process
| Part Number | Description | Key Difference |
|---|---|---|
| 6GK7243-1EX00-0XE0 | CP 243-1, basic Ethernet (this item) | Discontinued; deleted without replacement |
| 6GK7243-1EX01-0XE0 | CP 243-1 with IT functions (FTP, HTTP, Email) | Later variant; also discontinued |
| 6GK7243-1GX00-0XE0 | CP 243-1 IT (standalone IT module) | Separate IT-focused variant |
Critical Compatibility Note: There is no direct replacement for the CP 243-1 in the S7-200 product line. For new installations, migration to the S7-1200 platform with the CP 1243-1 (6GK7243-1BX30-0XE0) is the modern path, but this requires PLC replacement and program migration .
1 × Siemens 6GK7243-1EX00-0XE0 CP 243-1 Communication Processor
Note: S7-200 CPU, connecting cables, and STEP 7-Micro/WIN software are not included.
In Stock – Limited aftermarket stock available
Tested – Each unit verified for functionality (refurbished units)
Warranty Included – 12-month warranty for purchase confidence
Technical Support – S7-200 compatibility assistance available
Q1: What is the Siemens 6GK7243-1EX00-0XE0?
It is a CP 243-1 communication processor for the SIMATIC S7-22X (S7-200) platform. It connects the S7-200 PLC to Industrial Ethernet via a single RJ45 port, enabling S7 communication and PG/OP communication .
Q2: Is this product still available from Siemens?
No. It is classified under PM500: Product completely discontinued, with the stop sale date of July 1, 2022. Siemens states it was deleted without replacement .
Q3: Is there a successor model?
No direct successor exists in the S7-200 product line. A later variant (6GK7243-1EX01-0XE0) added IT functions, but it too has been discontinued . For new installations, migration to S7-1200 with CP 1243-1 is required.
Q4: How many S7 connections does the CP 243-1 support?
It supports up to 8 simultaneous S7 connections (XPUT/XGET, READ/WRITE) plus 1 connection for STEP 7-Micro/WIN programming .
Q5: What happens to the configuration when the module is replaced?
The network configuration is stored in the S7-200 CPU, not on the CP 243-1 module. A replacement module can be installed without a programming device, and the CPU will restore the configuration .
Q6: What is the power supply requirement?
The module draws 5 V DC from the S7-200 backplane (55 mA typical) and requires 24 V DC external supply (60 mA typical; 20.4–28.8 V) .
Q7: What are the dimensions and weight?
Dimensions are 71.2 × 80 × 62 mm (W × H × D). Net weight is approximately 0.150 kg (150 g) .
Q8: Can this module be repaired?
Yes. Specialist repair services may be available for failed modules. Given the lack of replacement stock, repair is often the most viable option for maintaining existing installations.
Q9: What should I verify before ordering?
Always verify the exact part number (6GK7243-1EX00-0XE0), confirm your S7-200 CPU model is compatible, check the condition and warranty of the specific unit offered, and consider whether repair of your existing module may be a more reliable option than sourcing used stock.
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