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Delta PLC CPU Module AHCPU531-EN
44 inquiries last 6 mos.
US $ 7,340 .38 / ea
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The Delta PLC is high quality!
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
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
Why Global Buyers Choose O&Kmarts
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- Access to a wide range of SKUs across multiple brands and series
- One RFQ connects you to 5,000+ global supplier quotes
- Better availability for urgent and hard-to-find parts
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- Easier access to rare and high-value models
- Flexible sourcing for individual parts or complete solutions
- Lower MOQs and more adaptable buying options
- Multi-brand procurement in one order
- OEM replacement and alternative model solutions available
- Fewer intermediaries, ensuring more competitive pricing
Why Global Buyers Choose O&Kmarts
Local Suppliers:
- Limited to fast-moving SKUs only
- Limited local market availability
- Inventory frequently fails to meet urgent demand
- Long replenishment cycles, often taking weeks
- Rarely stock high-value compressors (e.g. Copeland YHV119)
- Frequently require bundled purchases
- Rigid and difficult MOQ negotiations
- Limited brand selection
- Minimal or no customization capability
- Higher local distribution and markup costs
Top Questions from OKmarts Buyers
Q: How does OKmarts ensure consistent communication across different global time zones?
A: We operate an international sales and support desk that covers major global operating hours. Every corporate buyer is assigned a dedicated Account Manager who coordinates cross-border communications, ensuring that urgent technical queries or logistics issues are answered regardless of the time difference.
Q: Can OKmarts issue formalized, compliant proforma invoices and commercial invoices tailored for corporate accounting?
A: Absolutely. Our automated billing system generates itemized Proforma Invoices (PI) and Commercial Invoices containing corporate tax IDs, purchase order (PO) numbers, and explicit company details necessary to satisfy international corporate accounting and auditing standards.
Q: How does OKmarts guarantee that the industrial components (e.g., servo motors, PLCs, compressors) are 100% genuine and original?
A: OKmarts procures components directly from authorized manufacturers and verified tier-1 global distributors. Every product undergoes rigorous inbound inspection, featuring factory serial number tracking and original packaging verification to prevent any counterfeit or refurbished goods from entering the supply chain.
AHCPU531-EN
Delta PLC CPU Module AHCPU531-EN - delta - plc
High Efficiency
Stable Performance
Long Service Life
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Q&A
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Q: Can I pre-order items that are not yet released?
A: Yes, we may offer pre-order options for certain items that are not yet released. Pre-ordering allows you to secure your item in advance, and we will ship it to you as soon as it becomes available.
Q: Do you offer installment payment options?
A: Yes, we may offer installment payment options depending on your location and the total amount of your purchase. During the checkout process, you can check if installment payments are available and choose the suitable payment plan.
Q: How can I check the production date or expiration date of a product?
A: To check the production date or expiration date of a product, you can refer to the product packaging or labels. We provide clear and accurate information regarding the manufacturing date and expiration date, allowing you to make informed purchasing decisions. If you need further assistance, our customer service team is always ready to help.
Customer reviews
4.7
Based on 7 reviews
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Jun 16, 2025
Petros BalayanHad a small glitch with the website, but the customer service team was amazing. AHCPU531-EN hits the spotHelpful?(0)(0)Jun 12, 2025
John CarnickYES GREAT AHCPU531-EN hits the spotHelpful?(0)(0)