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Yokogawa AAI143-H50/K4A00 Analog Input Module · 16-Channel Isolated HART
01 / OVERVIEW
Analog input for FIO systems
AAI143-H50/K4A00 is a Yokogawa analog input module for 16 isolated 4 to 20 mA input channels. The HART version supports digital communication with HART field devices, while the /K4A00 option uses the KS Cable Interface Adapter.
PART NUMBER
AAI143-H50/K4A00
Yokogawa FIO
02 / TECHNICAL SPECIFICATIONS
Key technical data
Number of input channels
16, isolated
Input signal
4 to 20 mA
Allowable input current
24 mA
Accuracy
±16 μA
Data update period
10 ms
Withstanding voltage
1500 V AC
Between input and system, 1 minute
Additional technical data
Input resistance
Power ON: 270 Ω at 20 mA to 350 Ω at 4 mA Power OFF: 500 kΩ or more
Transmitter connection
2-wire or 4-wire
Set for each channel by setting pin
Transmitter power supply
19.0 V or higher at 20 mA 25.5 V or less at 0 mA Output current limit: 25 mA
Ambient temperature drift
±16 μA / 10 °C
Maximum current consumption
230 mA at 5 V DC 540 mA at 24 V DC
Weight
Approx. 0.3 kg
External connection
Pressure clamp terminal, MIL connector cable, dedicated cable (KS1)
Source: Yokogawa AAI143-H50/K4A00 datasheet
HART communication details
HART variables can be read by HART Command #3. Up to 16 HART devices and up to 32 HART variables can be handled per module.
HART multidrop supports up to 5 input devices per channel. Analog data value and burst function are not available in multidrop operation.
HART variable refresh is 1 second per device. With 16 devices connected, the refresh cycle is 17 seconds per ESB bus connection.
HART protocol revision: 5.7. Communication type: serial half duplex, start-stop synchronization, 1200 ±2 bps FSK.
03 / COMPATIBILITY & REPLACEMENT
FIO system position
The module belongs to the Yokogawa Fieldbus I/O (FIO) family. FIO I/O modules are installed in node units and communicate with the Field Control Unit through the FIO communication path.
Configuration check
Suffixes and terminal-interface options are configuration-specific. Check the complete part number before treating another AAI143 variant as a direct replacement.
04 / SIGNAL & TROUBLESHOOTING
Practical checks during maintenance
Signal path
Check the field-side current loop, transmitter wiring, channel setting and module connection when an input value is missing or unstable.
Maintenance focus
For HART-related issues, separate the analog signal check from the digital communication check. Confirm the field device and communication path before replacing the module.
05 / BEFORE SHIPMENT
AMIKON service & contact
Inspection
Part identity & condition
Testing
Functional test where applicable
Packaging
Protective industrial packaging
Warranty
12 months
DOA or quality issues should be reported before return. Damage caused by incorrect installation, wiring or misuse is outside the warranty scope.
Is AAI143-H50/K4A00 the correct part for a Yokogawa FIO installation?
It is an AAI143-series FIO analog input module. Confirm the existing system configuration and complete part number before ordering.
Does this model support HART communication?
Yes. The HART version supports HART digital communication with field devices.
What should I check before ordering this module?
Send the complete part number together with the machine or system information so the configuration can be checked before quotation.
Can another AAI143 suffix be used as a direct replacement?
Not automatically. Different suffixes can indicate different configurations or options, so the complete part identity should be compared first.
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Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Trading Company
Year Established:
2004
Total Annual:
85682000-125000000
Employee Number:
70~80
Ecer Certification：
Verified Supplier
Company Profile
Amikon Limited specializes in the global supply of industrial automation module spare parts.The company focuses on well-known international brands covering DCS systems, robot control systems, and large-scale servo control systems.
Product scope includes:
➢Distributed Control Syste... Company Profile
Amikon Limited specializes in the global supply of industrial automation module spare parts.The company focuses on well-known international brands covering DCS systems, robot control systems, and large-scale servo control systems.
Product scope includes:
➢Distributed Control Syste...
