SIMATIC S7-400 CP 443-1 OPC UA communication processor / 6GK7443-1UX00-0XE0

6GK7443-1UX00-0XE0: CP 443-1 OPC UA server/client communication processor. Connection and data-capacity limits follow the exact technical table. Verify CPU/firmware compatibility and actual data storage requirements before ordering.

Manufacturer part number: 6GK7443-1UX00-0XE0
Brand: Siemens
Category: PLC and HMI
Catalog status: Discontinued

Technical specifications

Controller family: SIMATIC S7-400
Module designation: CP 443-1 OPC UA
Ethernet interfaces: 1 x RJ45, per exact technical table
Ethernet speed: 10 / 100 / 1000 Mbps
Network role: OPC UA server and OPC UA client
OPC UA server client connections: 10 maximum
OPC UA server items: 64000 maximum; constrained by value storage capacity
OPC UA server value storage: 64000 bytes total
OPC UA client server connections: 5 maximum
OPC UA client items: 10000 maximum across connected servers
Maximum modules per CPU: 1
Backplane supply voltage: 5 VDC
Typical 5 V backplane current: 1.3 A
Dimensions (W x H x D): 25 x 290 x 210 mm
Weight: 0.7 kg
Document pages: PDF 111, 112
Current lifecycle status: Manufacturer page lists PM410: product cancelled since 2021-10-01, spare-part supply; page data dated 2025-09-01. Confirm current supply separately.

Manufacturer technical catalog · SIMATIC ST 400 / May 2017 · en · PDF · ST 400 / May 2017 / E86060-K4678-A151-A1-7600Manufacturer source: Siemens · Model explicitly covered in family document · Covered models: 6GK7443-1UX00-0XE0 · Checked: 2026-10-22Official manufacturer source

This sheet provides a quick technical summary. For design, installation and final selection, review the latest official manufacturer documentation and verify the complete part number.