Product Overview

CP 1243-1 Communication Processor for SIMATIC S7-1200 The Siemens 6GK7243-1BX30-0XE0 (CP 1243-1) is an industrial communication processor designed to expand the networking capabilities of SIMATIC S7-1200 PLC systems. It provides an additional Industrial Ethernet interface and enables secure communication with remote control centers, SCADA systems, and telemetry networks. This module supports several telecontrol protocols such as DNP3, IEC 60870-5-104, and TeleControl Basic, making it suitable for distributed infrastructure projects like water supply stations, energy monitoring systems, and remote pumping stations. Built-in security features including Firewall and VPN ensure safe data transmission across public or private networks. Key Features Compatible with SIMATIC S7-1200 PLC controllers Adds Industrial Ethernet communication interface Supports Telecontrol protocols (DNP3, IEC 60870-5-104, TeleControl Basic) Built-in VPN and firewall security Enables secure remote monitoring and diagnostics Designed for industrial automation and SCADA connectivity DIN-rail mounting for control panels Technical Specifications Parameter Specification Product Type Communication Processor Model CP 1243-1 Order Number 6GK7243-1BX30-0XE0 Compatible PLC SIMATIC S7-1200 Interface 1 × Industrial Ethernet Data Transfer Rate 10/100 Mbps Telecontrol Protocols DNP3, IEC 60870-5-104, TeleControl Basic Security Integrated VPN & Firewall Mounting 35 mm DIN Rail Net Weight ~0.18 kg Configuration TIA Portal

S7-1200 PLC CPU Model Name,	Description,	Siemens Part Number        (Order Code)

CPU 1211C  DC/DC/DC

Entry-level compact PLC with integrated I/O

6ES7211-1AE40-0XB0

CPU 1211C AC/DC/Relay

AC supply, relay outputs variant

6ES7211-1BE40-0XB0

CPU 1211C DC/DC/Relay

DC power, relay outputs

6ES7211-1HE40-0XB0

CPU 1212C DC/DC/DC

Standard performance compact PLC

6ES7212-1AE40-0XB0

CPU 1212C AC/DC/Relay

AC version with relay outputs

6ES7212-1BE40-0XB0

CPU 1212C DC/DC/Relay

DC power with relay outputs

6ES7212-1HE40-0XB0

CPU 1214C DC/DC/DC

Mid-range compact CPU

6ES7214-1AG40-0XB0

CPU 1214C AC/DC/Relay

Mid-range CPU with AC/relay outputs

6ES7214-1BG40-0XB0

CPU 1214C DC/DC/Relay

Mid-range DC with relay outputs

6ES7214-1HG40-0XB0

CPU 1215C DC/DC/DC

Higher-performance CPU

6ES7215-1AG40-0XB0

CPU 1215C AC/DC/Relay

Higher performance with AC/relay

6ES7215-1BG40-0XB0

CPU 1215C DC/DC/Relay

Higher performance DC with relay

6ES7215-1HG40-0XB0

CPU 1217C DC/DC/DC

Top performance compact CPU

6ES7217-1AG40-0XB0