Yokogawa SB401-11 ESB Bus Interface Slave Module
Configured for high-speed bus extension and signal routing in CENTUM VP platforms, the Yokogawa SB401-11 (SB401 ESB Bus Interface Slave Module) provides direct physical/electrical execution.
Suffix Breakdown & Model Matrix
| Model Code | Suffix Code | Description |
|---|---|---|
| SB401 | -1 | ESB Bus Interface Slave Module |
| 1 | Basic Type / Standard Configuration Style |
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | SB401-11 |
| Brand | Yokogawa |
| Module Type | ESB Bus Interface Slave Module |
| Origin | Japan |
| Weight | 1.5 kg (Shipping Weight) |
| Dimensions | Standard Rack Slot Dimensions |
| Operating Temp | -20 to +70 deg C |
| Power Consumption | 24 VDC System Power Load |
| Interface Type | ESB Bus Slave Interface |
| Compatible Rack | Remote Node / Extension Node Unit |
| Network Topology | Point-to-Point ESB Bus Architecture |
4-20 mA HART Loop Protocol & Channel Isolation
The module functions as the remote slave interface point on the ESB bus, routing digital communication packets between remote I/O nodes and the central controller. High-grade channel-to-channel isolation safeguards sensitive remote I/O channels against common-mode electrical transients, ensuring uncorrupted transmission of analog field signals using the 4-20 mA HART loop protocol across distributed DCS racks.
Frequently Asked Questions
Q: What is the primary operational role of the Yokogawa SB401-11 in a DCS rack?
A: The SB401-11 acts as an ESB bus slave interface, mounted in a remote I/O expansion chassis to receive and execute bus communication data transmitted from the master interface module.
Q: How does the SB401-11 ensure bus signal integrity during industrial electrical disturbances?
A: Internal galvanically isolated bus drivers prevent field-side ground loops and high-voltage spikes from propagating back into the master CPU rack backplane.
Field Installation Guidelines
- De-energize the remote expansion rack before sliding the SB401-11 slave module into its assigned backplane slot.
- Wear an ESD wrist strap attached to a cabinet earth ground when handling the module to protect internal logic circuits.
- Push the module card edges along the guide rails until the backplane multi-pin interface snaps into place.
- Fasten the front panel locking screws to complete chassis frame grounding and secure the module against vibration.
- Connect dedicated ESB bus cables with factory-molded connectors and maintain strict adherence to maximum bus cable run lengths.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | SNT401-53 |
| Brand | Yokogawa |
| Module Type | Optical ESB Bus Repeater Module |
| Origin | Japan |
| Weight | Standard Bus Module Weight |
| Dimensions | Standard Rack/Panel Dimensions |
| Operating Temp | -40 to +85 deg C |
| Power Consumption | 24 VDC System Power Load |
| Power Supply | 24 VDC |
| Communication Channels | 2-Channel ESB Bus |
| Transmission Medium | Optical Fiber Cable |
| Transmission Distance | Up to 5 km |
| Signal Type | Digital Optical Signal |
| Connector Type | Fiber Optic Connectors |
| Mounting Type | Panel Mount |
| Vibration Resistance | 10 Grms |
| EMI/RFI Immunity | Enhanced High-Immunity Design |
Bus Isolation & Protocol Communication Connectivity
The module bridges long-distance node segments by converting high-speed electrical ESB bus signals into digital optical streams. Fiber optic transmission provides complete galvanic isolation across bus links, suppressing high EMI/RFI noise and preventing ground potential differentials across distributed I/O racks over distances reaching up to 5 km.
Frequently Asked Questions
Q: What transmission distance can be achieved using the Yokogawa SNT401-53 module?
A: The SNT401-53 supports optical fiber communication extensions of up to 5 km between ESB bus nodes without degrading signal synchronization.
Q: How does the optical interface protect against industrial noise in harsh environments?
A: By utilizing fiber optic media, the SNT401-53 isolates communication pathways from electromagnetic interference (EMI) and radio frequency interference (RFI) while offering 10 Grms vibration resistance.
Field Installation Guidelines
- Verify that 24 VDC cabinet power is disconnected before installing or servicing the SNT401-53 module on the mounting panel.
- Clean all optical fiber connector ferrules with isopropyl alcohol and lint-free wipes prior to insertion into the module optical ports.
- Observe minimum bending radius specifications for optical fiber cables during cabinet routing to prevent attenuation loss or glass fiber fracture.
- Secure the module panel-mount hardware to a grounded metal substrate to maintain proper frame grounding and mechanical stability.
- Keep protective dust caps installed on unused fiber optic connector ports to prevent ambient dust and contaminant buildup.
Yokogawa SB401-11 ESB Bus Interface Slave Module
Yokogawa SB401-11 ESB Bus Interface Slave Module
Configured for high-speed bus extension and signal routing in CENTUM VP platforms, the Yokogawa SB401-11 (SB401 ESB Bus Interface Slave Module) provides direct physical/electrical execution.
Suffix Breakdown & Model Matrix
| Model Code | Suffix Code | Description |
|---|---|---|
| SB401 | -1 | ESB Bus Interface Slave Module |
| 1 | Basic Type / Standard Configuration Style |
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | SB401-11 |
| Brand | Yokogawa |
| Module Type | ESB Bus Interface Slave Module |
| Origin | Japan |
| Weight | 1.5 kg (Shipping Weight) |
| Dimensions | Standard Rack Slot Dimensions |
| Operating Temp | -20 to +70 deg C |
| Power Consumption | 24 VDC System Power Load |
| Interface Type | ESB Bus Slave Interface |
| Compatible Rack | Remote Node / Extension Node Unit |
| Network Topology | Point-to-Point ESB Bus Architecture |
4-20 mA HART Loop Protocol & Channel Isolation
The module functions as the remote slave interface point on the ESB bus, routing digital communication packets between remote I/O nodes and the central controller. High-grade channel-to-channel isolation safeguards sensitive remote I/O channels against common-mode electrical transients, ensuring uncorrupted transmission of analog field signals using the 4-20 mA HART loop protocol across distributed DCS racks.
Frequently Asked Questions
Q: What is the primary operational role of the Yokogawa SB401-11 in a DCS rack?
A: The SB401-11 acts as an ESB bus slave interface, mounted in a remote I/O expansion chassis to receive and execute bus communication data transmitted from the master interface module.
Q: How does the SB401-11 ensure bus signal integrity during industrial electrical disturbances?
A: Internal galvanically isolated bus drivers prevent field-side ground loops and high-voltage spikes from propagating back into the master CPU rack backplane.
Field Installation Guidelines
- De-energize the remote expansion rack before sliding the SB401-11 slave module into its assigned backplane slot.
- Wear an ESD wrist strap attached to a cabinet earth ground when handling the module to protect internal logic circuits.
- Push the module card edges along the guide rails until the backplane multi-pin interface snaps into place.
- Fasten the front panel locking screws to complete chassis frame grounding and secure the module against vibration.
- Connect dedicated ESB bus cables with factory-molded connectors and maintain strict adherence to maximum bus cable run lengths.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | SNT401-53 |
| Brand | Yokogawa |
| Module Type | Optical ESB Bus Repeater Module |
| Origin | Japan |
| Weight | Standard Bus Module Weight |
| Dimensions | Standard Rack/Panel Dimensions |
| Operating Temp | -40 to +85 deg C |
| Power Consumption | 24 VDC System Power Load |
| Power Supply | 24 VDC |
| Communication Channels | 2-Channel ESB Bus |
| Transmission Medium | Optical Fiber Cable |
| Transmission Distance | Up to 5 km |
| Signal Type | Digital Optical Signal |
| Connector Type | Fiber Optic Connectors |
| Mounting Type | Panel Mount |
| Vibration Resistance | 10 Grms |
| EMI/RFI Immunity | Enhanced High-Immunity Design |
Bus Isolation & Protocol Communication Connectivity
The module bridges long-distance node segments by converting high-speed electrical ESB bus signals into digital optical streams. Fiber optic transmission provides complete galvanic isolation across bus links, suppressing high EMI/RFI noise and preventing ground potential differentials across distributed I/O racks over distances reaching up to 5 km.
Frequently Asked Questions
Q: What transmission distance can be achieved using the Yokogawa SNT401-53 module?
A: The SNT401-53 supports optical fiber communication extensions of up to 5 km between ESB bus nodes without degrading signal synchronization.
Q: How does the optical interface protect against industrial noise in harsh environments?
A: By utilizing fiber optic media, the SNT401-53 isolates communication pathways from electromagnetic interference (EMI) and radio frequency interference (RFI) while offering 10 Grms vibration resistance.
Field Installation Guidelines
- Verify that 24 VDC cabinet power is disconnected before installing or servicing the SNT401-53 module on the mounting panel.
- Clean all optical fiber connector ferrules with isopropyl alcohol and lint-free wipes prior to insertion into the module optical ports.
- Observe minimum bending radius specifications for optical fiber cables during cabinet routing to prevent attenuation loss or glass fiber fracture.
- Secure the module panel-mount hardware to a grounded metal substrate to maintain proper frame grounding and mechanical stability.
- Keep protective dust caps installed on unused fiber optic connector ports to prevent ambient dust and contaminant buildup.
