The Yokogawa ALR121-S51 is a serial communication module designed to enable a field control station (FCS) to communicate with various subsystems, including the FA-M3. It can be mounted on several Yokogawa field control units, ESB bus node units, and ER bus node units. The module supports both Modbus slave communication and subsystem communication.
Technical Specifications
Item
Specification
Interface
RS-422/RS-485 (4-wire system)
Connection Method
Point-to-point (RS-422), Multipoint (RS-485)
Communication Function
Half-duplex
Synchronization Method
Start-stop synchronization
Transmission Speed
1200/2400/4800/9600/19200/38400 bps
Transmission Code
ASCII/binary
Character Length
7/8 bits
Stop Bit Length
1/2 bits
Parity Check
None/even/odd
Lag Time After Data Transmission
1 ms
Transmission Distance
Maximum 1200 m (total extended length)
Installation Method
Mounted on ANB10□, ANB11□, ANR10□, AFF50□, AFV10□, AFV30□, or AFV40□
I/O Wiring
Refer to the instruction manual
Applications
The Yokogawa ALR121-S51 is suitable for a wide range of applications, including:
Industrial automation systems
Supervisory control and data acquisition (SCADA) systems
Building automation systems
Power distribution systems
Benefits
Increased Communication Flexibility: The ALR121-S51 supports various communication protocols and connection methods, providing a versatile solution for numerous applications.
Improved System Performance: With high transmission speeds and long transmission distances, the ALR121-S51 enhances the performance of industrial automation systems.
Cost-Effectiveness: This module offers a cost-effective solution that can help reduce the overall costs of an industrial automation system.
Answer 1: PLC DCS Pro Ltd. collaborates with over 50 countries worldwide. As a leading supplier in China, we can provide significant discounts to customers based on market demand.
Question 2: What Is The Warranty Period?
Answer 2: We offer a standard one-year warranty for all new and original items.
Question 3: What Payment Methods Do We Accept?
Answer 3: We accept 100% T/T (Telegraphic Transfer) before shipping. For items with a lead time, a 30% deposit is required in advance, with the remaining 70% balance due before shipping. If you have an agent in China, please contact us for RMB transfer.
Question 4: What Shipping Methods Do We Use?
Answer 4: We primarily utilize carriers such as FedEx, DHL, UPS, BRE, etc. If you have an account with any of these carriers, you can arrange the shipping yourself. Additionally, we offer free shipping to China freight forwarders.
Question 5: What Is Our Delivery Time?
Answer 5: Typically, delivery takes around 1-3 days after receiving the advance payment. For items with a quoted lead time, delivery will occur as per the specified lead time.
Question 6: How Do We Package The Goods?
Answer 6: Our packaging process involves multiple layers of protection. Initially, the product is placed in its original box, sealed with a label. Then, we add a layer of bubble wrap to safeguard against collisions during transportation. Finally, all products are securely packed in sturdy boxes for further protection.
Question 7: How Can Customers Contact Us And Request A Quote?
Answer 7: Customers can inquire via email, WhatsApp, WeChat, Skype, or any preferred communication platform. Simply reach out to us, and we'll promptly provide a quote tailored to your needs.
Warranty Conditions
At PLC DCS Pro Ltd., we are committed to ensuring the quality of our products. Our one-year warranty provides coverage for any defects in material or workmanship, excluding damages caused by deliberate misuse.
🛡️Coverage Details:
This warranty encompasses all instances of product malfunction or failure due to inherent manufacturing flaws, with the exception of intentional damage.
📝Claim Process:
To avail of warranty services, please notify us of any quality-related issues within the warranty period. We may conduct online troubleshooting and examination as needed.
🚚Shipping Assistance:
We understand the importance of prompt service. Therefore, we cover return shipping costs for warranty-related returns within the first month of supply. Within three months of supply, we cover one-way shipping costs for warranty-related returns. After three months, the customer is responsible for shipping costs both ways.
🚫Exclusions:
Unauthorized modifications, repairs, or misuse of the product.
