The Yokogawa AMM22, also cataloged as the AMM22 Multiplexer Input Module, operates as a dedicated analog signal acquisition component for field transmitter and sensor data processing within Yokogawa CENTUM CS 3000 and CENTUM VP Distributed Control System platforms.
Hardware Specifications
Parameter
Specification
Model
AMM22
Brand
Yokogawa
Origin
Japan
Weight
0.3 kg
Operating Temp
-10 deg C to +60 deg C
Power Consumption
Approx. 2.5 W to 5 W
Module Type
Multiplexer Input Module
System Platform
Yokogawa CENTUM CS 3000 / CENTUM VP
Number of Channels
16 channels
Input Signals
4-20 mA DC, 1-5 VDC, voltage, thermocouple, RTD inputs
Measurement Accuracy
+/- 0.1% of full scale
Input Impedance
250 ohm (current mode), >= 1 Mohm (voltage mode)
Isolation
Field-to-backplane galvanic isolation, 1500 VAC
Data Update Cycle
10 ms to 100 ms configurable scan rate
Process Signal Isolation and DCS Interface Characteristics
The AMM22 performs analog input conditioning, signal conversion, and transmission between field instrumentation and Yokogawa CENTUM control stations. The module supports multiplexed acquisition of current, voltage, thermocouple, and RTD signals through a 16-channel input structure.
The module incorporates field-to-backplane galvanic isolation and hardware filtering functions for electrical separation between field wiring and internal system communication paths. Signal filtering is applied to reduce the effects of ground loops, electromagnetic interference, and transient disturbances during analog measurement.
The AMM22 supports Yokogawa FIO and rack-mount nest installation structures with communication through the DCS backplane architecture. The module supports hot-swapping when installed in compatible system nests.
Frequently Asked Questions
Q: What input signal types can be connected to the AMM22 Multiplexer Input Module? A: The AMM22 accepts analog field signals including 4-20 mA DC current loops, 1-5 VDC voltage signals, thermocouple inputs, and RTD inputs.
Q: Does the AMM22 provide electrical isolation between field wiring and the DCS backplane? A: Yes. The module provides field-to-backplane galvanic isolation rated at 1500 VAC.
Q: Can the AMM22 be replaced while the control system remains powered? A: The module supports hot-swapping when installed in compatible Yokogawa nests designed for maintenance replacement under energized conditions.
Field Installation Guidelines
Install the AMM22 in the specified Yokogawa CENTUM FIO or rack-mount nest position according to the system hardware configuration.
Verify that field signal wiring matches the configured input type before connecting transmitters, thermocouples, or RTD devices.
Maintain proper separation between analog signal cables and high-voltage power wiring to reduce electromagnetic interference.
Connect cable shields according to the site grounding standard, avoiding multiple uncontrolled grounding points.
Confirm backplane connector seating and module locking mechanisms before system commissioning.
Check field loop polarity, terminal assignment, and signal conditioning parameters during startup verification.
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.
