SIMATIC S7-400 CP 443-5 Extended communication processor / 6GK7443-5DX05-0XE0

6GK7443-5DX05-0XE0: CP 443-5 Extended PROFIBUS communication processor. Network role and communication capacities follow the exact manufacturer entry. Verify CPU compatibility, engineering configuration and current supply before ordering.

Manufacturer part number: 6GK7443-5DX05-0XE0
Brand: Siemens
Category: PLC and HMI
Catalog status: Request a quotation

Technical specifications

Controller family: SIMATIC S7-400
Module designation: CP 443-5 Extended
Interface: 1 x 9-pin Sub-D RS-485 socket
Communication speeds: 9.6 kbps to 12 Mbps
Ethernet interfaces: 0
Backplane supply voltage: 5 VDC
Typical 5 V backplane current: 0.6 A typical
Open SEND/RECEIVE connections: 32 maximum
SEND/RECEIVE user data: 240 bytes maximum per connection
S7 communication connections: 48 maximum
Dimensions (W x H x D): 25 x 290 x 210 mm
Weight: 0.65 kg
Document pages: PDF 102, 103
Current lifecycle status: Not established by historical catalogue; confirm separately
Network role: PROFIBUS DP master; DPV1 supported
Maximum DP slaves: 125
Total DP input address area: 4096 bytes
Total DP output address area: 4096 bytes
DP input data per slave: 244 bytes maximum
DP output data per slave: 244 bytes maximum
Reviewed engineering requirement: STEP 7 V5.4 SP4 or higher / STEP 7 Professional V12 (TIA Portal) or higher; confirm current supported environment

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: 6GK7443-5DX05-0XE0 · 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.