AAP849-S50 YOKOGAWA Analog Input Module

AAP849-S50 YOKOGAWA CENTUM VP CS 3000 Analog Input Modules

AAP849-S50 YOKOGAWA CENTUM VP CS 3000 Analog Input Modules

Availability: 10 left in stock

YOKOGAWA AAP849-S50 Analog Input Module The YOKOGAWA AAP849-S50, also cataloged as the AAP849 Analog Input Module, operates as a dedicated...

SKU: AAP849-S50

Manufacturer: Yokogawa
Product No.: AAP849-S50
Product Type: Analog Input Modules
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 900g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

YOKOGAWA AAP849-S50 Analog Input Module

The YOKOGAWA AAP849-S50, also cataloged as the AAP849 Analog Input Module, operates as a dedicated hardware component for collecting analog signal inputs and converting process variables within CENTUM VP, CS 3000, and ProSafe-RS control system architectures.

Hardware Specifications

Parameter	Specification
Model	AAP849-S50
Brand	Yokogawa
Origin	Japan
Weight	0.9 kg
Dimensions	130 x 45 x 245 mm
Operating Temp	-20 to 70 deg C
Power Consumption	5 VDC: ~600 mA, 24 VDC: ~550 mA
Input Channels	32 analog input points
Signal Range	4-20 mA DC (permissible: 0-25 mA)
Accuracy	+/-0.1% of full scale
A/D Conversion	16-bit resolution
Data Update Frequency	40 ms
Isolation	Channel-to-system: 1.5 kV AC for 1 min
Input Impedance	250 ohm (powered), >=500 kohm (unpowered)

Channel Isolation and Process Control Integration

Yokogawa DCS architectures rely on strict channel-to-system isolation and stable loop execution to preserve signal integrity across high-density field wiring networks. The unit processes standard 4-20 mA current loops, utilizing internal 16-bit A/D conversion circuits to digitize field telemetry at a 40 ms refresh rate. High dielectric galvanic isolation rating of 1.5 kV AC prevents ground potential differentials from propagating to internal system backplane buses, preserving cold junction compensation accuracy and shielding adjacent system nodes during field transient conditions.

Frequently Asked Questions

Q: What is the input impedance behavior of the module when power to the backplane is removed?

A: When unpowered, the input impedance switches from its active 250 ohm operating load to a high-impedance state of >=500 kohm, preventing complete loop disruption on unpowered field circuits.

Q: How does channel-to-system isolation protect connected backplane electronics during field ground faults?

A: Integrated isolation transformers and optocouplers provide a 1.5 kV AC withstand barrier for 1 minute between the field terminals and the system logic, containing high-voltage surges at the channel level.

Field Installation Guidelines

Position the card alignment guides into the designated slot of the node chassis (such as ANB10D or ANB10S), pressing firmly until the module backplane connectors fully engage, then tighten the top and bottom retention screws. Strip signal cable conductors to the manufacturer specification, clamping field wiring into terminal blocks using recommended torque limits to maintain low-resistance contact.

Route input signal lines through dedicated instrument wire runs, keeping high-voltage power conduits separated by at least 300 mm. Bond all cable shield wires directly to the cabinet enclosure earth bus at a single ground point to suppress external high-frequency noise interference across the analog loops.

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, USA

Reliable 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, Germany

Top-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.