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June 9, 2025 BY
IN Meggitt

Meggitt vibro-meter VMS830-2 vibration monitor

KEY FEATURES AND BENEFITS

• From the vibro-meter® product line

• Two measurement channels

(independently configurable)

• Measurement ranges:

Displacement:

 100, 200 or 500 μm PEAK

Velocity:

 10, 20 or 50 mm/s RMS

• Frequency range: 3 to 1000 Hz

• Temperature range: 0 to 50°C

• One 0 or 4 to 20 mA current loop output and

one “Raw” voltage output per channel

• Two alarms and three relays per channel

• Front-panel displays

• Robust steel housing with lockable

hinged door

• Protection rating: IP66

• Compatible with industry-standard

velocity sensors

APPLICATIONS

• Vibration measurement chains for machinery

protection and/or condition monitoring

• Vibration monitoring in accordance with

ISO 10816

• General-purpose vibration monitoring and

protection for stand-alone machines in harsh

industrial environments
June 9, 2025 BY
IN Meggitt

Meggitt VibroSmart® VSV301 + VSB300 monitoring module Different versions

Different versions of the VSV30x module

Two different versions of VibroSmart VSV30x

monitoring module are available: the VSV301 and

the VSV300.

• For the VSV301, the dynamic channel buffered

outputs are buffered (output-to-input ratio of 1:1)

and a VSA301 buffered output amplifier is only

required for signal transmission over long

distances (up to 500 m).

• For the VSV300, the dynamic channel buffered

outputs are attenuated (output-to-input ratio of

1:10) and require a VSA301 buffered output

amplifier to make the “raw” sensor signals

available at their original amplitude.

Apart from the transfer ratio (dynamic channel

buffered outputs described above) and

measurement phase accuracy (see Buffered

outputs – dynamic channels on page 9), and

maximum operating temperature

(see Environmental on page 11), the VSV301 and

VSV300 are the same, and both use the same

VSB300 terminal base
June 9, 2025 BY
IN Meggitt

Meggitt VibroSmart® VSV301 + VSB300 monitoring module Description

VibroSmart distributed monitoring system

A VibroSmart® distributed monitoring system

(DMS) is a network of small and economical

modules providing measurement,

communications or other functions that are

connected together in distributed, networked

measurement blocks in order to provide the

functionality normally offered by rack-based

machinery monitoring systems. A VibroSmart

system consists of one or more measurement

blocks, each containing up to sixteen VibroSmart

modules, a power supply and an optional host

computer running the VibroSight software.

A measurement block is a logical grouping of

VibroSmart modules that allows data such as

tachometer, trigger and alarm information to be

shared, for example, in order to monitor the same

machine. Measurement blocks are configured

using the VibroSight® software.

Note: A VibroSmart system is limited to a

maximum of sixteen VSV30x modules per

measurement block and a maximum of eight

measurement blocks without VibroSmart VSN010

real-time Ethernet switches. However, if each

measurement block contains a VSN010, then a

higher number of measurement blocks can be

achieved, limited only by overall system

performance (network traffic, VibroSight

computer configuration and so on).
June 9, 2025 BY
IN Meggitt

Meggitt VibroSmart® VSV301 + VSB300 monitoring module

KEY FEATURES AND BENEFITS

• VibroSight® compatible hardware from the

vibro-meter® product line

• 2 individually configurable dynamic input

channels with up to 19 kHz bandwidth

• 1 auxiliary input channel configurable as either

a tachometer or a DC input

• Synchronous sampling of input channels

• Up to 20 configurable processed outputs per

module

• Spectrum analyzer (FFT) up to 1600 lines

every 100 ms

• Up to 4 alarms per processed output, with

hysteresis and time delay

• AND, OR and majority voting logic functions for

the combination of alarm and status

information

• VibroSmart® security (module lock)

• Redundant communications and redundant

power supply inputs to improve availability

• Analog outputs: 2 local outputs configurable

as 4-20 mA or ±5 V

• Discrete outputs: 2 local relays

• Real-time Ethernet communications

• Live insertion and removal of modules (hotswappable)

with automatic reconfiguration

• Fully software configurable

• Robust enclosures with DIN rail mounting

APPLICATIONS

• Vibration and/or combustion monitoring

• Machinery protection and/or

condition monitoring

• Conforms to IEC 61850-3 requirements for

power plant and utility applications
June 9, 2025 BY
IN Meggitt

Meggitt VibroSmart® VSV301 + VSB300 monitoring module Different versions

Different versions of the VSV30x module

Two different versions of VibroSmart VSV30x

monitoring module are available: the VSV301 and

the VSV300.

• For the VSV301, the dynamic channel buffered

outputs are buffered (output-to-input ratio of 1:1)

and a VSA301 buffered output amplifier is only

required for signal transmission over long

distances (up to 500 m).

• For the VSV300, the dynamic channel buffered

outputs are attenuated (output-to-input ratio of

1:10) and require a VSA301 buffered output

amplifier to make the “raw” sensor signals

available at their original amplitude.

Apart from the transfer ratio (dynamic channel

buffered outputs described above) and

measurement phase accuracy (see Buffered

outputs – dynamic channels on page 9), and

maximum operating temperature

(see Environmental on page 11), the VSV301 and

VSV300 are the same, and both use the same

VSB300 terminal base
June 9, 2025 BY
IN Meggitt

Meggitt VibroSmart® VSV301 + VSB300 monitoring module

KEY FEATURES AND BENEFITS

• VibroSight® compatible hardware from the

vibro-meter® product line

• 2 individually configurable dynamic input

channels with up to 19 kHz bandwidth

• 1 auxiliary input channel configurable as either

a tachometer or a DC input

• Synchronous sampling of input channels

• Up to 20 configurable processed outputs per

module

• Spectrum analyzer (FFT) up to 1600 lines

every 100 ms

• Up to 4 alarms per processed output, with

hysteresis and time delay

• AND, OR and majority voting logic functions for

the combination of alarm and status

information

• VibroSmart® security (module lock)

• Redundant communications and redundant

power supply inputs to improve availability

• Analog outputs: 2 local outputs configurable

as 4-20 mA or ±5 V

• Discrete outputs: 2 local relays

• Real-time Ethernet communications

• Live insertion and removal of modules (hotswappable)

with automatic reconfiguration

• Fully software configurable

• Robust enclosures with DIN rail mounting
June 9, 2025 BY
IN GE

Fanuc IC670MDL331 Field Control I/O Module

The IC670MDL331 is a field control I/O module manufactured by GE Fanuc. The module is a discrete output module with eight (8) channels in four (4) groups of two (2) channels each. It provides an output voltage range of 85-132 VAC, a nominal output of 120 VAC, and a maximum output current of 2 A per channel.The module has a backplane current consumption of 154 mA.

About the IC670MDL331

This IC670MDL331 is manufactured by GE Fanuc and is part of the Field Control family. It is an I/O module, specifically, a discrete output module with eight (8) output channels divided into four (4) with two (2) channels each. It provides an output voltage of 85-132 VAC, 47-63 Hz, and a nominal output level of 120 VAC.Each channel of the module is designed to provide a maximum output current of 2 amps, making the module compatible with inductive loads.

Although the IC670MDL331 is rated for 2 A per channel, the maximum output per group is limited to a maximum of 2 A. Additionally, the maximum output per module is limited to 6A – 8 A. The module is equipped with LED status indicators, such as Logic Side Indicators, describing the on and off status of each channel, and Fuse OK LEDs, indicating the status of the fuses mounted inside each channel group. status of the fuses installed inside each channel group.

The IC670MDL331 is used in conjunction with a Bus Interface Unit (BIU). This BIU sends individual channel status to a host controller that resides on a protocol supported by the BIU. In addition, the controller can access the diagnostic status of the IC670MDL331 through the BIU.
June 9, 2025 BY
IN GE

Fanuc Discrete Input Module IC670MDL640 24VDC Positive/Negative Input Module

Power Sources

The module receives power from the Field Processor to run its own 5–volt logic. An external

24VDC supply is needed to power the input devices.

LEDs

Individual LEDs (logic side), visible through the transparent portion of the module top,

indicate the on/off status of each input. The PWR LED is on when field and backplane power

are present.

Host Interface

Intelligent processing for this module is performed by the Bus Interface Unit or elsewhere in

the system. This includes configuring features such as input defaults and fault reporting. The

module has 16 bits (two bytes) of discrete input data. A Bus Interface Unit is required to

provide this input data to the host and/or local processor.

Module Operation

A network of resistors and capacitors establishes input thresholds and provides input filtering.

Optoisolators provide isolation between the field inputs and the module’s logic components.

Data from all 16 inputs is placed into a data buffer. The module’s circuit LEDs show the

current states of the 16 inputs in this data buffer.

Parallel–to–seri al converters change input data from the data buffer into the serial format

needed by the Bus Interface Unit.

After checking the Board ID and verifying that the module is receiving appropriate logic power

from the Bus Interface Unit (which is reflected by the state of the module’s Power LED), the Bus

Interface Module then reads the filtered, converted input data.
June 9, 2025 BY
IN GE

Fanuc IC670MDL641 Discrete Input Module

Power Sources

The module receives power from the Bus Interface Unit for its own operation. An external 48

VDC supply is needed to power the input devices.

LEDs

Individual LEDs (logic side), visible through the transparent portion of the module top,

indicate the On/Off status of each input. The PWR LED is On when field and backplane

power are present.

Host Interface

Intelligent processing for this module is performed by the Bus Interface Unit or elsewhere in

the system. This includes configuring features such as input defaults and fault reporting.

The module has 16 bits (two bytes) of discrete input data. A Bus Interface Unit is required

to provide this input data to the host and/or local processor.

Module Operation

A network of resistors, capacitors, and zener diodes establishes input thresholds and provides

input filtering. Optoisolators provide isolation between the field inputs and the module’s logic

components. An oscillator and switch form a sampling circuit that is transparent to the

controller and the LEDs that indicate the state of the inputs. Data from all 16 inputs is placed

into a data buffer. The module’s circuit LEDs show the current states of the 16 inputs in this

data buffer.

Parallel-to-serial converters change input data from the data buffer into the serial format

needed by the Bus Interface Unit.
June 9, 2025 BY
IN GE

Fanuc 16-Point Discrete Output Module for IC670MDL740 Field Control Series


This IC670MDL740 is a positive logic discrete output module manufactured by GE Fanuc. The module is a general-purpose output module that is mounted on a Bus Interface Unit (BIU) to implement an extended I/O solution. It is typically used for energised output devices such as indicator lights, relay coils, solenoid driven devices and similar devices with low current ratings because the IC670MDL740 provides 10.30 amps of output current per channel and a total of 24 amps of output current per module over a voltage output range of 0-5 VDC and a nominal voltage of 4 VDC.

The IC670MDL740 is designed with individual status LEDs to indicate the on/off status of each output channel of the module. 

The entire I/O group is fitted with a common fuse that is also assigned an LED to describe the blown fuse status. The module generates an inrush current rated at 2 amps with a maximum duration of 100 ms. The output channels have a minimum load current of 1 mA per point, an output voltage drop of 0.5 V, an output leakage current of 5.30 mA at 0 VDC, and a typical response time for on and off signal transitions.

The IC670MDL740 comes with an integrated terminal block consisting of 25 terminals. Each terminal is designed to terminate one AWG #14 – AWG #22 wire or two (18) wires using AWG #2 wire. By installing external jumpers on this module, the allowable wire size is reduced to AWG #14 to AWG #16.

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