Description
Product Overview
Part Number: AAI143-H50 Manufacturer: Yokogawa (Yokogawa Electric, Japan) Product Series: CENTUM VP DCS, FIO Field I/O Module Type: Analog Input Module (AI) AAI143-H50 is a 16-channel isolated analog input module for Yokogawa CENTUM VP FIO nodes. It receives 4-20mA analog signals from field transmitters and supports HART digital communication to read transmitter diagnostic data, tag information and parameter settings. It converts field analog signals into digital data and transmits to FCS controller via ESB bus. Widely used in petrochemical, power, oil & gas and chemical process plants for pressure, flow, level and temperature measurement. This module supports hot swap and can be configured for dual-redundant installation.
Technical Specifications
| Item | Parameter |
|---|---|
| Part Number | AAI143-H50 |
| Module Type | Analog Input Module |
| Applicable System | Yokogawa CENTUM VP FIO node |
| Number of Channels | 16 channels |
| Input Signal | 4~20mA DC, HART compatible |
| Input Resistance | 250Ω |
| Isolation | Channel-group isolation, 2kV AC withstand |
| Accuracy | ±0.02% of reading ±1μA |
| Response Time | Max 30ms |
| Redundancy | Dual redundant support |
| Hot Swap | Yes, online replacement |
| Power Supply | 5VDC from FIO node backplane |
| Operating Temperature | 0°C ~ +50°C |
| Storage Temperature | -20°C ~ +70°C |
| Humidity | 5~95% RH, non-condensing |
| Dimensions | 148(W) × 111(H) × 40(D) mm |
| Weight | Approx 300g |
Engineer Notes
- AAI143-H50 belongs to FIO series I/O module for CENTUM VP, not compatible with old CS3000 system.
- Supports HART protocol, can read smart transmitter diagnostics without additional HART multiplexer.
- Can be installed as dual redundant pair; automatic switchover upon module failure without interrupting process acquisition.
- Hot-swap function allows module removal and replacement while DCS online, no system shutdown required.
- Use matched Yokogawa terminal board for field wiring; shield cable is recommended for 4-20mA signal to reduce noise.
- Check module LED indicators for power, communication and channel fault status during commissioning and maintenance.
- Each channel supports open-circuit detection for field transmitter cable break alarm.
Pre-Shipment Test Protocol
- Power-on self-test and LED status verification
- 4-20mA full range accuracy calibration test
- HART communication function test with HART transmitter simulator
- Redundancy switchover simulation test
- Open circuit fault detection verification
- Continuity and insulation resistance inspection
- Visual inspection of housing, connectors, label and marking
- Anti-static & shockproof packaging inspection
Buyer FAQ
Q: Is AAI143-H50 new original? A: We supply brand new original Yokogawa units, 12-month warranty, factory test certificate available on request.
Q: What does suffix H50 mean? A: H50 indicates HART enabled, standard non-ex-proof FIO analog input version.
Q: Can AAI143-H50 work in redundant configuration? A: Yes, two AAI143-H50 modules can be configured as dual redundant pair.
Q: Does this module support HART? A: Yes, AAI143-H50 integrates HART function to communicate with smart field transmitters.
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