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Yokogawa SEC402-21 ESB Bus Coupler Module

Yokogawa SEC402-21 ESB Bus Coupler Module

Configured for high-speed bus master interfacing in distributed process control platforms, the Yokogawa SEC402-21 (SEC402-21 ESB Bus Coupler Module) provides direct physical/electrical execution.

Hardware Specifications

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Availability: Low stock: 50 left

SKU: SEC402-21
Vendor: Yokogawa
Category: ESB Bus Coupler Module
Related Series:

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Configured for high-speed bus master interfacing in distributed process control platforms, the Yokogawa SEC402-21 (SEC402-21 ESB Bus Coupler Module) provides direct physical/electrical execution.

Hardware Specifications

Parameter Specification
Model SEC402-21
Brand Yokogawa
Origin japan
Weight 0.24 kg
Dimensions Standard Rack Module
Operating Temp Standard Industrial Rating
Power Consumption 0.5 A current consumption
Transmission Speed 128 Mbps
Transmission Distance Up to 10 meters
Connectable Nodes Up to 13 I/O nodes

4-20 mA HART Loop Protocol and Channel Isolation

The hardware configuration maintains strict electrical isolation across internal bus communication interfaces to eliminate ground loop interference and suppress common-mode transient voltage spikes across extended node links. Integration with standard process control communication protocols and 128 Mbps transmission parameters ensures deterministic data transfer, low-latency master interfacing, and transparent diagnostic feedback across connected safety and control I/O modules.

Frequently Asked Questions

Q: What are the restrictions regarding cable length for the SEC402-21 module?

A: Transmission distance is restricted to a maximum of 10 meters of cable length to maintain signal integrity and prevent data corruption at 128 Mbps speeds.

Q: How many I/O nodes can be connected to a single bus coupler module?

A: The module supports connection for up to 13 I/O nodes within the specified bus topology limits.

Field Installation Guidelines

Mount the unit directly into the designated slot of the node base, ensuring physical alignment with backplane connectors before engaging securing screws. Route communication cabling away from high-voltage power conduits and use shielded cables to preserve bus transmission integrity. Terminate cable shielding and ground drain wires securely to the designated cabinet earth grounding bar.