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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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A: Unfortunately, we cannot offer a refund if the price of your purchase decreases. However, within a certain period of time, we can provide you with a certain amount of discount coupons as compensation, ensuring your satisfaction. Our prices may vary due to promotions and market conditions, among other factors. We recommend making your purchase based on the current price at the time of purchase.
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- Q: How can I check the status of my refund?
A: To check the status of your refund, you can contact our customer service team and provide them with the necessary details, such as your order number and refund request. They will assist you in tracking the progress of your refund.
Reviews
- C
Craig Edelman
Apr 06, 2026
Delta PLC CPU Module AHCPU521-ENI received my order exactly as expected.HelpfulUnhelpful - W
William Black
Mar 26, 2026
Delta PLC CPU Module AHCPU521-ENQuick and efficient shipping response!HelpfulUnhelpful - Z
Zoe
Aug 19, 2025
Delta PLC CPU Module AHCPU521-ENI've had a great experience working with them.HelpfulUnhelpful - C
Chris Malm
May 16, 2025
Delta PLC CPU Module AHCPU521-ENOutstanding service from the seller. The process was simple and delivery was swift.HelpfulUnhelpful - R
Ron Crews
Nov 30, 2024
Delta PLC CPU Module AHCPU521-ENexact part neededHelpfulUnhelpful - M
MYRA POPE
Aug 06, 2024
Delta PLC CPU Module AHCPU521-ENWell-packaged parts, fast delivery, and a perfect fit for a good price.HelpfulUnhelpful - A
Anonymous user
Nov 25, 2022
Delta PLC CPU Module AHCPU521-ENAll was ok! No problems whatsoever.HelpfulUnhelpful
Delta PLC CPU Module AHCPU521-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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