AIP171 Yokogawa Analog Input Module Datasheet & Technical Manual

Yokogawa AIP171 Transceiver Control Module

Yokogawa AIP171 Transceiver Control Module

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Configured for high-accuracy process variable acquisition in CENTUM VP and CS3000 Distributed Control System networks, the Yokogawa AIP171, also cataloged...

SKU: AIP171

Manufacturer: Yokogawa
Product No.: AIP171
Product Type: Analog Input Modules
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 350g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Configured for high-accuracy process variable acquisition in CENTUM VP and CS3000 Distributed Control System networks, the Yokogawa AIP171, also cataloged as the AIP171 Analog Input Module / Transceiver Control Unit, provides direct physical/electrical execution. This hardware component functions as a 16-channel isolated interface that digitizes analog field data while simultaneously managing transceiver communication pathways across the net repeater backplane architecture.

Hardware Specifications

Parameter	Specification
Model	AIP171
Brand	Yokogawa
Origin	Japan
Weight	0.2 kg (0.35 lbs shipping weight)
Dimensions	1.0" (2.5 cm) x 5.0" (12.7 cm) x 7.0" (17.8 cm)
Operating Temp	-10 to 60 deg C
Power Consumption	24 VDC nominal feed / Powered via I/O backplane
Input Channels	16 isolated channels
Signal Range	4-20 mA nominal or 1-5 V DC input vectors
Accuracy	+/-0.1% of span
Communication Interface	RS485 and native HART protocol (Rev. 5/6/7)
Isolation Voltage	>= 500 V AC RMS (channel-to-system)
Response Time	< 100 ms sampling cycle
Humidity Range	10 to 90% RH (non-condensing)

Process Control & DCS Instrumentation Properties

The module integrates native 4-20 mA HART loop protocol connectivity directly across all 16 channels, allowing the concurrent transmission of primary analog process variables and secondary digital transmitter diagnostics without the use of external multiplexer hardware. Galvanic channel-to-channel isolation safeguards the internal analog-to-digital converter circuitry from ground potential differentials. This architecture delivers a Common Mode Rejection Ratio (CMRR) exceeding 120 dB at 50/60 Hz, suppressing electrical noise across the net repeater interface.

Frequently Asked Questions

Q: How does the hot-swap capability function during online module replacement in a redundant configuration?

A: The AIP171 features active hot-swap physical parameters. When nested within a dual-redundant backplane slot allocation (such as an AEP811 base), an online extraction of the passive or faulted card triggers an automatic bumpless transfer of the complete execution load to the adjacent partner module without dropping the active RS485 communication link.

Q: What are the consequences of deploying this module outside its stated operating temperature constraints?

A: Operating the hardware below -10 deg C or above 60 deg C will cause thermal drift in the analog-to-digital converter, pushing the measurement baseline beyond the stated +/-0.1% accuracy threshold. Internal component degradation may also result if ambient conditions remain outside the designated parameters.

Q: Is external termination required to enable the native HART interface functions on a 4-20 mA loop?

A: No, the AIP171 incorporates internal filtering and impedance matching necessary to decouple the digital HART FSK signal from the analog current loop, eliminating the need for external resistor networks on standard 4-20 mA loops.

Field Installation Guidelines

Backplane Insertion and Retention: Slide the PC board firmly into the designated rack guide rails until the backplane connectors are completely seated. Secure the integrated faceplate retention screws to prevent contact displacement under mechanical vibration.
Shield Grounding and Noise Mitigation: Terminate all instrumentation cable shields at a single, dedicated functional earth busbar within the local marshalling enclosure. Maintain twisted-pair routing up to the terminal landing to preserve the >120 dB common-mode rejection performance.
RS485 Segment Termination: When utilizing the RS485 transceiver communication lines, verify that proper end-of-line termination impedance matches the characteristic impedance of the field cable to prevent signal reflections and data corruption.

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