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The 133323-01 is the rear-mounted Modbus RS485 I/O component required for the Bently Nevada 3500/92 Communication Gateway system. It provides dual-isolated RS485 serial communication ports, allowing the 3500/92 gateway to transmit real-time vibration, position, and status data directly to plant control systems like DCS and PLC.
Modicon Modbus protocol (via serial communications)
Modbus/TCP protocol (a variant of serial Modbus used for TCP/IP Ethernet communications)
Proprietary Bently Nevada protocol (for communication with 3500 Rack Configuration and Data Acquisition Software packages)
The 3500/92 Communication Gateway module provides extensive communication capabilities of all rack monitored values and statuses for integration with process control and other automation systems using both Ethernet TCP/IP and serial (RS232/RS422/RS485) communications capabilities. It also permits Ethernet communications with 3500 Rack Configuration Software and Data Acquisition Software.
The 3500/92 supports the communication interfaces, communication protocols, and other features from the original 3500/90 with the exception of the primary value Modbus registers. The 3500/92 now has a Configurable Modbus Register Utility, which can provide the same functionality originally addressed by the primary value Modbus registers.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Thermal Power
Transmitting real-time shaft vibration and axial displacement data of supercritical steam turbine-generator units to the plant-wide DCS via Modbus for digital monitoring and operational trend analysis.
Oil & Gas Long-Distance Pipelines
Installed on giant gas turbine-driven compressor trains at pipeline booster stations to transmit critical Keyphasor (speed) and relative unit vibration data to a centralized SCADA system.
Petrochemical
Collecting dynamic runout data from the bearing housings of heavy oil catalytic cracking main blowers and high-pressure hydrocracking compressors, communicating digitally with the PCS to prevent coupling misalignment.
Hydroelectric Power
Remote-transmitting the radial shaft runout and thrust gaps of large hydro-generator units to assist the central control room in assessing hydraulic unbalance and mechanical bearing wear.
Nuclear Power
Seamlessly exporting digital vibration health signals of main feedwater pumps and auxiliary turbines in the nuclear turbine building to the upper-level HMI, satisfying isolation communication mandates for high-security assets.
Air Separation
Digitally transmitting shaft positions of ultra-high-speed oxygen/nitrogen centrifugal compressors and expanders in cryogenic air separation units, providing a digitized operational view of high-speed turbomachinery.
Always power down the rack before inserting or removing the module; hot-swapping is strictly prohibited to prevent damaging internal electronic components. Ensure proper serial bus termination resistor configuration during wiring, and use high-quality shielded twisted-pair cables with correct grounding to block electromagnetic interference from disrupting communication.
Verify that the hardware dip switch settings for physical station address and baud rate perfectly match the configuration within both the 3500 software and the upper-level master system (DCS/PLC).
Additionally, periodically inspect the tightness of the rear terminal blocks to prevent loose connections caused by continuous industrial vibration.
Alternative Names
Alternative Names
133323 01133323-O1I33323-0II33323-OI
Technical notes
Technical notes
This Modbus RS485 I/O module connects the Bently Nevada 3500 system to upper-level DCS or PLC networks. It transmits real-time machinery health data, including vibration, position, and speed, via the Modbus RTU protocol. Featuring dual-isolated RS485 interfaces, it ensures reliable data throughput for large rotating machinery in harsh industrial environments.
It identifies a communication gateway module designed for industrial monitoring and control networks.
Which systems commonly use the 133323-01 module?
It is used in condition monitoring, turbine control systems, and industrial automation networks.
What physical interfaces are present on the 133323-01 module?
It includes terminal block interfaces for RS485 serial connections and an RJ45 port for Ethernet connectivity.
What configurable baud rates does 133323-01 support?
It supports transmission speeds of 9600, 19200, 38400, 57600, 115200, or 230400 bps.
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