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Bently Nevada 125736-01 Modbus RS232/RS422 Communication Gateway I/O Module for 3500/92 with Real-Time Diagnostics
Bently Nevada 125736-01 Modbus RS232/RS422 Communication Gateway I/O Module for 3500/92 with Real-Time Diagnostics
Modbus RS232/RS422 communication Bently Nevada 3500/92
DCS/PLC system integration data integration gateway
Bently Nevada 3500 rack power plant automation
Luogo di origine:
U.S.A.
Marca:
Bently Nevada
Numero di modello:
125736-01
Contattici
Richieda una citazione
Dettagli del prodotto
Modello:
125736-01
Paese di origine:
U.S.A.
Luogo di spedizione:
Xiamen, Cina
SPEDIZIONE:
TNT, DHL, Fedex, SME, UPS
MOQ:
1 pezzo
Confezione:
Confezione nuova originale
Dimensioni di spedizione stimate:
2,4x11,1x24 cm
peso:
0,42 chilogrammi
Evidenziare:
Modbus RS232/RS422 communication Bently Nevada 3500/92
,DCS/PLC system integration data integration gateway
,Bently Nevada 3500 rack power plant automation
Termini di trasporto & di pagamento
Quantità di ordine minimo
1
Prezzo
66USD
Imballaggi particolari
Nuovissimo e originale
Tempi di consegna
2-3 giorni lavorativi
Termini di pagamento
T/T
Capacità di alimentazione
in magazzino
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Descrizione di prodotto
Bently Nevada 125736-01 Modbus RS232/RS422 Communication Gateway I/O Module
| Attribute | Details |
|---|---|
| Part Number | 125736-01 |
| Description | Modbus RS232/RS422 Communication Gateway I/O Module |
| Compatible Monitor | Bently Nevada 3500/92 Communication Gateway |
| Protocols Supported | Modbus RTU (via RS232 and RS422) |
| Data Rate | Up to 38.4 kbaud |
| I/O Port 1 | RS232 (Supports standard Modbus point-to-point) |
| I/O Port 2 | RS422 (Supports multi-drop communication) |
| Internal Indicators | OK LED (Green), TX/RX LED (Flashing) |
| Operating Temp | -30°C to +65°C (-22°F to +149°F) |
| Storage Temp | -40°C to +85°C (-40°F to +185°F) |
| Rack Slot Requirement | Full-height rear slot (directly behind 3500/92 Monitor) |
Connect Now, Move Forward
System Compatibility & Pairing
The 125736-01 isn’t something you use on its own. It’s the rear I/O side for the Bently Nevada 3500/92 Communication Gateway, so it only really makes sense when it’s paired with the front 3500/92 module.
- Main Module
You’ll need the 3500/92 processor module (for example 136180-01) on the front. This one just handles the communication ports at the back—by itself, it won’t do anything. - Where it goes
It sits in the rear slot of the rack, directly behind the 3500/92. Front + rear, lined up together—that’s how it’s meant to be installed.
Part Info
- P/N: 125736-01
This is the RS232 / RS422 Modbus rear I/O version. - Don’t mix it up
People sometimes confuse this with the 3500/92 front module. They work together, but they’re separate parts. In most cases, both are needed.
Wiring & Connectors
- Comes with removable terminal blocks (screw type), so wiring is pretty standard.
- Uses shielded twisted-pair cables.
- RS232 → simple point-to-point
- RS422 → better if you’ve got multiple devices on one line
Pre-Order Checklist
A few things worth a quick check:
- Your system is using Modbus RTU (serial), not something else
- There’s actually a free rear slot for this in the rack
- The 3500 config software is available, otherwise setup can’t really be done
Key Applications of the 125736-01 (3500/92) Communication Gateway Module
DCS / PLC Integration
In real projects, this module is mainly used to connect the Bently Nevada 3500 rack to external systems.
Using Modbus RTU over RS232 / RS422 serial communication, it sends vibration, speed, and thrust data to DCS, PLC, or SCADA. So instead of checking different systems separately, everything can be viewed together on the control side.
In real projects, this module is mainly used to connect the Bently Nevada 3500 rack to external systems.
Using Modbus RTU over RS232 / RS422 serial communication, it sends vibration, speed, and thrust data to DCS, PLC, or SCADA. So instead of checking different systems separately, everything can be viewed together on the control side.
Machinery Protection & Monitoring
You’ll usually see it in places like power plants or oil & gas sites—steam turbines, gas turbines, compressors, that kind of equipment.
As part of a machinery protection system, it makes sure data from the 3500 rack is available for higher-level analysis. This is where predictive maintenance comes in—operators can spot issues early, instead of reacting after a trip or shutdown.
In many setups, this is also used in API 670 compliant monitoring environments.
You’ll usually see it in places like power plants or oil & gas sites—steam turbines, gas turbines, compressors, that kind of equipment.
As part of a machinery protection system, it makes sure data from the 3500 rack is available for higher-level analysis. This is where predictive maintenance comes in—operators can spot issues early, instead of reacting after a trip or shutdown.
In many setups, this is also used in API 670 compliant monitoring environments.
Remote Data Collection / Automation
RS422 support is quite useful when the site is spread out. You can run multi-drop configuration, connect multiple racks, and send everything back to one central point.
Data is often collected by an RTU or central system, sometimes together with System 1 software. For larger plants or distributed stations, this is basically how data gets centralized and managed.
RS422 support is quite useful when the site is spread out. You can run multi-drop configuration, connect multiple racks, and send everything back to one central point.
Data is often collected by an RTU or central system, sometimes together with System 1 software. For larger plants or distributed stations, this is basically how data gets centralized and managed.
ESD / Safety System Integration
Not just for monitoring—this module also provides the communication link to safety systems.
Rack status and alarm data can be shared with ESD or SIS, giving more context during critical events and helping the system respond faster. In practice, this kind of integration is often part of an industrial-grade reliability setup where both protection and safety systems work together.
Not just for monitoring—this module also provides the communication link to safety systems.
Rack status and alarm data can be shared with ESD or SIS, giving more context during critical events and helping the system respond faster. In practice, this kind of integration is often part of an industrial-grade reliability setup where both protection and safety systems work together.
Frequently Asked Questions
Q1: What is the 125736-01 used for in a 3500 system?
A: The 125736-01 is just the rear I/O part for the Bently Nevada 3500. It’s what lets the 3500/92 actually talk outside the rack. Data like vibration, speed, thrust… it all goes out through this module using Modbus RTU over RS232 or RS422. Without it, the data basically stays inside the rack.
Q2: What communication does 125736-01 support?
A: The 125736-01 runs Modbus RTU. You get RS232 and RS422 ports. RS232 is simple point-to-point, RS422 is more for longer distance or when you connect multiple devices.
Q3: What do the LEDs mean
A: Pretty simple. On the 125736-01, OK means it’s working. TX/RX flashes when data is going through. If TX/RX is dead, usually it’s wiring or Modbus setup.
Q4: Is 125736-01 only for 3500/92?
A: Yes. The 125736-01 is made for the Bently Nevada 3500/92 Communication Gateway. It goes in the rear slot behind the 3500/92. If it’s not installed in the right place, it just won’t communicate properly.
Q5: Can you change the data mapping?
A: You can. The 125736-01 is set up through the 3500 configuration software. You can map vibration, position, etc. into Modbus registers depending on what your DCS or PLC needs.
Q6: What environment can 125736-01 handle?
A: It’s built for industrial sites—power plants, refineries, compressors, that kind of place. Temperature range is roughly -30 to +65°C. It’s also commonly used in API 670 type setups, so it’s meant for machinery protection systems that run 24/7.
Key Features
- Gateway function: The 125736-01 is the I/O part for the Bently Nevada 3500/92 Communication Gateway. It links the 3500 rack with DCS / PLC / SCADA systems, so data can go out.
- Modbus RTU with RS232 / RS422: Supports Modbus RTU. RS232 for simple connection, RS422 for longer distance or multi-drop.
- Register setup: Can be set through 3500 configuration software. Modbus register mapping can be adjusted depending on the DCS or PLC side.
- Basic LED status: Includes front-panel LED indicators (OK and TX/RX) for instantaneous monitoring of module health and active data transmission status.OK LED means normal. TX/RX flashes when data is running. No flash usually means wiring or setup issue.
- 3500 rack use: Works with the Bently Nevada 3500 rack system. Installed behind the 3500/92 module.
- Industrial use: Used in power plants, oil & gas, etc. Temp range around -30 to +65°C, stable for long operation.
- API 670 related setups: Often used in machinery protection systems that follow API 670 requirements.
Compatible Part Numbers
| 3500/93 135785-02 | 330905-00-10-10-02-00 |
| 330703-000-050-10-02-00 | 991-06-50-01-00 |
| 330104-00-18-10-02-00 | 330103-00-15-10-02-00 |
| 3300/01 | 1X35668 |
| 330105-02-12-10-02-00 | 330103-02-07-10-02-00 |
| 330103-00-10-10-02-00 | 330103-02-12-10-02-00 |
| 3300/20 | 330103-05-13-10-02-00 |
| 990-04-50-02-00 | 330103-07-12-10-02-00 |
| 81545-01 | 330104-01-05-10-02-00 |
| 82926-01 | 330703-050-120-10-02-00 |
| 84140-01 | 330709-050-120-10-02-00 |
| 84145-01 | 76686-040-01 |
| 84152-01 | 81305-040-00 |
| 330103-00-04-10-02-05 | 135489-04 |
| 330730-040-03-00 | 128031-01C 128031-01 |
| 330104-00-25-10-02-05 | 330904-05-14-05-02-00 |
| 330103-00-07-20-02-00 | 330930-040-00-00 |
| 126599-01 | 330909-00-60-10-02-05 |
| 990-04-70-01-00 | 21000-16-10-15-057-03-02 |
| 330103-00-15-05-01-00 | 21000-16-10-15-102-03-02 |
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