ANT502-50 S1 YOKOGAWA CENTUM VP Datasheet & Technical Manual

YOKOGAWA ANT401-50 S1 ProSafe-RS Optical Bus Repeater Module

YOKOGAWA ANT401-50 S1 ProSafe-RS Optical Bus Repeater Module

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YOKOGAWA ANT401-50 S1 Optical ESB Bus Repeater Module Configured for high-speed data transmission in CENTUM VP and ProSafe-RS networks, the...

SKU: ANT401-50 S1

Manufacturer: Yokogawa
Product No.: ANT401-50 S1
Product Type: Analog Input Modules
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 300g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

YOKOGAWA ANT401-50 S1 Optical ESB Bus Repeater Module

Configured for high-speed data transmission in CENTUM VP and ProSafe-RS networks, the YOKOGAWA ANT401-50 S1 (ANT401-50 Optical ESB Bus Repeater Module) provides direct physical/electrical execution. This hardware component functions as a primary optical bus interface, translating internal bus signals into optical media formats to sustain long-distance communication links between local Node Interface Units and remote Field Control Units (FCU). The unit drives high-throughput optical loops while executing structural galvanic isolation across the transmission lines, ensuring synchronous real-time diagnostics and network data routing without adding latency to the primary industrial control loop.

Hardware Specifications

Parameter	Specification
Model	ANT401-50 S1
Brand	YOKOGAWA
Origin	Japan
Weight	0.2 kg net / ~0.3 kg gross
Dimensions	3.2 x 11.4 x 6.3 cm (Module core) / 125 x 130 x 248 mm (Total base assembly)
Operating Temp	-20 to +60 deg C
Power Consumption	5 VDC via Node Interface Unit / ~300 mA current draw
System Compatibility	CENTUM VP, ProSafe-RS
Signal Input Capacity	16 analog input channels
Signal Type	4-20 mA current input compatibility matrix
Accuracy	+/- 0.1% of full scale
Input Impedance	250 Ohm
Response Time	Lower than or equal to 100 ms
Environmental Resistance	ISA G3 corrosion resistance baseline
Certifications	CE, UL

Process Control and DCS Instrumentation Technical Characteristics

The module incorporates robust channel-to-channel isolation parameters alongside system-level galvanic isolation boundaries to prevent ground loops and protect node microprocessors from inductive field transients. Field circuits feed directly into a matrix handling 16 channels, which minimizes footprint demands inside control cabinets.

The transceiver architecture supports the 4-20 mA HART loop protocol layer, which passes complex field device variables cleanly to the host controller over the optical bus extension. Built-in self-diagnostics continuously track data link health and power supply margins, lighting local front-panel LEDs instantly if line attenuation breaches nominal margins or if an open-loop condition occurs. The S1 connector option provides a specific cabling configuration designed for standard field wiring harnesses.

Frequently Asked Questions

Q: Does the ANT401-50 S1 module support on-line hot-swap replacement while the node rack is energized?

A: No, maintenance teams must de-energize the host Node Interface Unit before removing the module. Extracting the card under an active 300 mA load generates backplane transients that disrupt adjacent optical ESB bus communication.

Q: How does the hardware respond if the optical signal experiences significant db attenuation?

A: The internal diagnostic circuit senses the drop below nominal reception thresholds, flags an internal network fault status, and forces the respective 16 analog input registers into a fail-safe state within 100 ms.

Q: Can this module ingest direct RTD or voltage signals without external conditioning?

A: No, the input channels match a 250 Ohm input impedance designed strictly for standard 4-20 mA current loops. Voltage or temperature sensors require dedicated external transmitters to convert signals prior to module termination.

Field Installation Guidelines

Chassis Engagement: Align the module frame straight with the assigned slot on the Node Interface Unit. Tighten the integral securing screws completely to ensure constant contact pressure and mitigate structural plant vibrations.
Optical Fiber Handling: Maintain the minimum specified bend radius when routing the fiber optic cables. Sharp bends introduce severe optical signal loss and induce premature physical fractures in the core.
Shield Grounding Infrastructure: Ground all external 4-20 mA field loops at a single master instrumentation earth point. Keep the shield termination short to maximize high-frequency noise rejection.
Conduit Route Separation: Separate low-voltage signal cables from high-power AC motor leads or switching circuits. Utilize distinct wire ducts to prevent electromagnetic cross-talk from corrupting the 16 analog inputs.

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