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Built-in RS-232/422/485 multi-mode communication port x 1
RS-232:115.2 Kbps / RS-422 / 485:921.6 Kbps
Built-in Ethernet communication port (100 Mbps)
Built-in SD card slot (maximum capacity:
2 GB for AHCPU5_0 or 32 GB for AHCPU5_1)
Built-in Mini USB programming communication port
With system diagnosis/status indicator/online programming and debugging functions
Support PLC Link/Ether Link automatic data exchange function
Support Modbus RTU/ASCII, Modbus TCP
Support DNP3 protocol (AHCPU521-DNP only)
EtherNet/IP support (AHCPU5_1-EN only)
-Scanner and Adapter modes
-support for I/O connections and explicit messages
-Number of connections: TCP = 32 ~ 128; CIP = 64 ~ 256
- RPI: 1 ~ 1,000 ms
-250 words/connection
The language LD/SFC/FBD/IL/ST is supported
Support for 256 interrupts
(time/IO/external/low voltage/communication interruption)
2,048 Timer and Counter are supported
Support battery-free data saving
With RTC function (up to 30 days power-off hold)
Support NTP network timing function
The function of WEB/E-Mail/IP Filter is supported
CPU RAM/ROM capacity
AHCPU5_0:32 MB / 8 MB
AHCPU5_1:128 MB / 128 MB
Cpu frequency
AHCPU5_0:133 MHz
AHCPU5_1:800 MHz
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Reviews
- P
Petros Balayan
Jun 16, 2025
Delta PLC CPU Module AHCPU531-ENHad a small glitch with the website, but the customer service team was amazing.HelpfulUnhelpful - J
John Carnick
Jun 12, 2025
Delta PLC CPU Module AHCPU531-ENYES GREATHelpfulUnhelpful - H
Henry Nivelt
Sep 20, 2024
Delta PLC CPU Module AHCPU531-ENIt's a great place to launch a business.HelpfulUnhelpful - I
Israel Campos Jr.
Sep 17, 2024
Delta PLC CPU Module AHCPU531-ENAmazing experience! Thanks for the serviceHelpfulUnhelpful - B
Blake
Jan 18, 2024
Delta PLC CPU Module AHCPU531-ENYou've exceeded my expectations in terms of service!HelpfulUnhelpful - J
Junior Dorsaint
Jun 26, 2023
Delta PLC CPU Module AHCPU531-ENThe package arrived quickly with no issues at all.HelpfulUnhelpful - A
Anonymous user
Nov 25, 2022
Delta PLC CPU Module AHCPU531-ENAll was ok! No problems whatsoever.HelpfulUnhelpful
Delta PLC CPU Module AHCPU531-EN
✔ In Stock (Can ship in 5-7 days)

Online Support 24/7
12 Months Warranty for New Products
30 Days Money Back Guarantee
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