YOKOGAWA AMM42T S2 Analog Input Module
The YOKOGAWA AMM42T S2, also cataloged as the AMM42T Analog Input Module, operates as a dedicated hardware component for 16-channel thermocouple signal acquisition and digitization within CENTUM VP FIO subsystem platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | AMM42T S2 |
| Brand | YOKOGAWA |
| Origin | Japan |
| Weight | 2.2 kg |
| Dimensions | 482.6 mm x 132.5 mm x 3U |
| Operating Temp | 0 deg C to 50 deg C |
| Power Consumption | 0.6 A |
| Input Channels | 16 |
| Resolution | 16-bit |
DCS Process Control Integration
The AMM42T S2 manages high-precision temperature data by employing integrated cold junction compensation (CJC) circuitry to normalize thermocouple electromotive force inputs. To ensure measurement integrity, the module features channel-to-channel isolation, which mitigates common-mode noise and prevents cross-talk between high-impedance thermocouple sensors in dense signal environments. Data is processed through a 16-bit A/D converter, providing a conversion resolution suitable for process control loops requiring stability across wide temperature ranges. The internal architecture facilitates seamless integration into the CENTUM VP FIO subsystem, where it periodically transmits digitized sensor values for control logic execution.
Frequently Asked Questions
Q: Does the AMM42T S2 module support input types other than thermocouples?
A: No. The signal conditioning circuitry is specifically mapped for thermocouple (TC) types K, J, T, E, N, R, S, and B. It cannot interface with RTDs or standard 4-20 mA current loops.
Q: How does the system handle thermocouple open-circuit detection?
A: The module performs continuous diagnostic monitoring of the input impedance. If the circuit detects an impedance exceeding the threshold indicative of a wire break, it sets a hardware diagnostic flag that is reported to the Field Control Station (FCS).
Q: Is the 100 ms update cycle synchronous with the control loop?
A: The module operates on a fixed 100 ms scan rate for the A/D conversion cycle. Data is updated in the I/O image table of the FCS at this interval, which must be considered when configuring control loops with fast response requirements.
Field Installation Guidelines
- Verify that the I/O node backplane is de-energized before inserting or removing the module.
- Terminate thermocouple extension leads directly to the dedicated terminal block; maintain uniform thermal conditions at the block to prevent CJC errors.
- Ensure all signal cabling uses shielded twisted-pair conductors, with the shield grounded at a single, dedicated cabinet ground point to comply with noise immunity standards.
- Secure the module using the integrated captive screws on the 3U rack frame to ensure stable backplane pin contact.
- Perform a cold-junction validation check by comparing the module's ambient temperature reading against a calibrated reference thermometer during commissioning.
What's clients say about us
Excellent Emergency Support!
Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.
Mark Thompson
Maintenance Manager, USAReliable Source for New Spares
Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.
Robert Hoffmann
Engineering Lead, GermanyTop-tier Service and Quality
We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.
Lucas Müller
Operations Director, GermanyRelated Products
BUS1 YOKOGAWA CENTUM CS Bus Interface Communication Module
$99.00
$199.00
YOKOGAWA BUS2 CENTUM VP FCU Bus Interface Module
$99.00
$199.00
YOKOGAWA AAM11 S1 CENTUM VP 16-Channel Analog Input Module
$99.00
$199.00
32-Channel Thermocouple Input Module YOKOGAWA AMM32T S2
$99.00
$199.00
YOKOGAWA AMM52 S4 CENTUM VP 32-Channel Analog Input Module
$99.00
$199.00
Yokogawa RS-EL56 ProSafe-RS Safety PLC Module Datasheet
$99.00
$199.00
SARM15A Yokogawa Digital Input Module Relay Board
$99.00
$199.00
SARM55C Yokogawa Terminal Board Digital Output Module
$99.00
$199.00
T9881 ICS Triplex Trusted TMR Analog Output Module
$99.00
$199.00
ICS Triplex T8111C Trusted TMR Main Processor Module
$99.00
$199.00
T7481A ICS Triplex Trusted Series 7000 Digital Output Module
$99.00
$199.00
ICS Triplex T3511 Trusted TMR Analog Input Module
$99.00
$199.00
T3481 ICS Triplex Trusted TMR Digital Output Module
$99.00
$199.00
T8193 ICS Triplex Trusted TMR Digital Input Module
$99.00
$199.00
ICS Triplex T8270 Fan Assembly Rack Mount Module
$99.00
$199.00
T8431 ICS Triplex Trusted Analog Input Modules
$99.00
$199.00
ICS Triplex T8403 Trusted TMR Series Digital Input Module
$99.00
$199.00
ICS Triplex T8310 Trusted Expander Processor
$99.00
$199.00
Rockwell ICS Triplex T9451 Analog Output Module
$99.00
$199.00
T9402 ICS Triplex Analog Input Module Datasheet & Manual
$99.00
$199.00
ICS Triplex T9191 Trusted Digital Output Assembly
$99.00
$199.00
ICS Triplex T9300 Trusted Safety System I/O Backplane
$99.00
$199.00
T9193 ICS Triplex Trusted Digital Input Module
$99.00
$199.00
ICS Triplex T9832 Trusted Series Analog Input Module
$99.00
$199.00
T9110 ICS Triplex Trusted Safety System Processor
$99.00
$199.00
TSXBLY01 Schneider Electric Modicon Premium Terminal Block
$99.00
$199.00
Schneider Electric BMXXBP0800 Modicon X80 Backplane
$99.00
$199.00
Schneider Electric 140CPU53414 Modicon Quantum CPU Module
$99.00
$199.00
BMXFTW301S Schneider Electric 3m 20-Way Analog Cordset
$99.00
$199.00
140XBE10000 Schneider Quantum 12-16 Slot Backplane Expander
$99.00
$199.00
Guide
Translation missing: en.general.search.loading