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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
Ask questions
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- Q: How can I apply for a purchase invoice?
A: On the checkout page, you can select the option for an invoice and fill in the relevant invoice information. We will provide you with the corresponding invoice according to your request.
- Q: Can I save my payment information for faster checkout?
A: We prioritize the security of your payment information and do not store sensitive payment details on our servers. However, you may have the option to securely save your payment information with trusted third-party payment processors for faster checkout on future orders.
- Q: Do you have a size conversion chart for international customers?
A: Yes, we provide size conversion charts for international customers on our website. These charts help you convert sizes between different measurement systems, ensuring you select the appropriate size for your region. They can usually be found in the product description or on the size guide page.
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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