Year: 2025

Supported Industrial Ethernet Protocols

Modbus TCP

The VIM2 with the Modbus TCP Driver supports the

following Modbus communications protocol function codes

to read and write values to and from Modbus devices,

as specified by the Modbus Application Protocol

Specification from Modbus-IDA.org. This driver emulates

Programmable Serial cards on the DeltaV I/O Bus.

The VIM2 Modbus TCP/IP Driver supports the following

Modbus function codes:

Code 8 – Diagnostic Loop Back Test

Code 15 – Force Multiple Coils

Code 16 – Preset Multiple Registers

The VIM2 can function as both a Modbus TCP master

and slave simultaneously. Master or slave mode is set

at the virtual port level. The master and slave capability

are available in simplex implementations; in redundant

applications, only master mode is supported.

VIM2 Dual Simplex or Redundant Setups

Two VIM2s can either be setup as a dual simplex or

redundant pair for installations that either consists of

many field devices or require additional communication

resiliency, respectively.

If two VIMs are configured for dual simplex operation, both

VIM2s will work as Standalone units and no redundancy link

cable is installed.

If two VIMs are configured for redundant operation, the

active and standby VIM2s monitor each other with a

continuous status command using the redundancy link

cable supplied with each redundant pair. The active VIM2

communicates over the network to the Industrial Ethernet

device and the standby sends an intermittent signal to the

device to maintain communication integrity.

The Ethernet I/O drivers are available separately from the

VIM2 hardware. Each operating VIM requires one license

for the running protocol. For example, a redundant pair of

VIMs requires two copies of the driver running on that pair,

but an offline spare does not require licensing.

VIMNet Explorer

VIMNet Explorer allows the user to commission the VIM2;

setup primary, secondary, and/or redundant VIM2s; define

the Ethernet I/O network; and view advanced diagnostics

information. The user can specify the IP address, Subnet

Mask, and Gateway of each VIM2 and set the node address

and names of each Ethernet I/O device integrated with

the VIM2. VIMNet Explorer is also used to flash upgrade a

VIM from one version of a driver to another or to replace

an existing driver type with another. Only one Ethernet I/O

driver may be loaded in the VIM2 at one time.

VIMNet Explorer application must run on a workstation

that has network connectivity to the Ethernet I/O network.

This may be a DeltaV workstation with the third network

interface card (NIC) connected to the Ethernet I/O network

or may be a non-DeltaV workstation. Connection to the

VIM2 is done through the RJ-45 Network Connection on the

bottom of the VIM2.

VIMNet Explorer installation media is downloadable from Guardian.

IO Simulation

When used with DeltaV Mimic software, the VIM2

supports I/O simulation all DeltaV M-series I/O cards

including classic IO, FOUNDATION Fieldbus, Profibus DP,

DeviceNet, ASi-bus and Serial.

Mimic provides dynamic simulation for DeltaV system

software acceptance testing and operator training. Mimic

works by simulating the DeltaV I/O. It also simulates field

devices using Foundation Fieldbus, Profibus DP, DeviceNet,

and AS-i buses. For Mimic to do this, the physical I/O cards

are disconnected from the control system. The Mimic driver

writes to the I/O subsystem of the DeltaV controller. Process

models in Mimic simulate realistic process reactions to

control system output signals.

Each offline process controller uses one Mimic simulation

node and VIM. The I/O simulation driver is available with Mimic.

Product Description

The VIM2 may be used for either DeltaV I/O simulation or

Ethernet I/O device integration. The VIM2 mounts on a

2-wide horizontal or 4-wide vertical carrier on either side

of the DeltaV controller. A dedicated DeltaV system power

supply is required.

Ethernet I/O Integration

When used with the Ethernet I/O drivers, the VIM2

can communicate with high-speed Ethernet networks

over Modbus TCP, EtherNet/IP, FMC722. or PROFINET.

Depending on redundancy configuration of the VIM2. the

DeltaV controller auto-senses a commissioned VIM2 as four

or eight DeltaV I/O Cards.

• In simplex installations these cards will be sensed in slots 57-60 or 61-64.

• In dual simplex installations these cards will be sensed in slots 57 to 64.

• In redundant installations the redundant pairs will be sensed in slots 57 to 64.

Users configure the I/O signals for commissioned VIM2s

in DeltaV Explorer in the same manner as a DeltaV Serial, DeviceNet, or Profibus Card.

Specific ease of use features include:

 Automatic updates. Simulation I/O driver updates for the VIM2 are included with the MiMiC software

releases.

Updates are quick and easy over the simulation network.

 Seamless Ethernet I/O integration. When used with the MYNAH Ethernet I/O drivers,

the VIM2 is seen by the DeltaV M-series controller as four DeltaV Serial Cards.

Commissioned VIM2s are auto-sensed by the DeltaV controller as DeltaV Serial Cards.

 Configured in DeltaV Explorer. Serial dataset configuration used for Ethernet I/O integration

is done in the DeltaV Explorer in the same manner as a DeltaV Serial Card.

Ethernet I/O signals can be used in DeltaV Control Modules, displayed on 

DeltaV Operate graphics and stored in the DeltaV Continuous Historian.

 Intuitive setup. The VIMNet Explorer application provides plug-n-play capability making setup of the

VIM2 easy and intuitive. 

Graphical, drag-n-drop, functionality makes setting up multiple VIM2s almost effortless. 

VIMNet Explorer is integrated with DeltaV Explorer to make setup of the VIM2 easy and intuitive.

Modular, flexible packaging. The VIM2 mounts in the same manner as the DeltaV controller.

It mounts in the controller slot of a DeltaV 2-wide horizontal or 4-wide vertical carrier and uses a standard

DeltaV Power Supply.

The advanced design of the VIM2 will provide years of uninterrupted use.

The VIM2 and the Ethernet I/O devices must be on the same IP subnet to communicate.

 1:1 Redundancy. Redundancy can be added to any Ethernet I/O system by adding a second

VIM2 and configuring the two cards as a redundant pair.

The VIM2 appears as four redundant DeltaV Serial Card pairs.

Automatic switchover of primary to standby cards is handled like the DeltaV Serial Card.

The operator is given clear notification of a switchover at the operator display.

Manual switchover can be controlled in DeltaV Diagnostics.

Easy to use. The VIM2 is easy to use and well integrated into the DeltaV system.

Ethernet I/O signals can be used in DeltaV Control Modules, displayed on 

DeltaV Operate graphics and stored in the DeltaV Continuous Historian.

 Intuitive setup. The VIMNet Explorer application provides plug-n-play capability making setup of the

VIM2 easy and intuitive. 

Graphical, drag-n-drop, functionality makes setting up multiple VIM2s almost effortless. 

VIMNet Explorer is integrated with DeltaV Explorer to make setup of the VIM2 easy and intuitive.

Modular, flexible packaging. The VIM2 mounts in the same manner as the DeltaV controller.

It mounts in the controller slot of a DeltaV 2-wide horizontal or 4-wide vertical carrier and uses a standard

DeltaV Power Supply.

The advanced design of the VIM2 will provide years of uninterrupted use.

Product Description

The VIM2 may be used for either DeltaV I/O simulation or Ethernet I/O device integration.

The VIM2 mounts on a 2-wide horizontal or 4-wide vertical carrier on the left-hand-side of the DeltaV

controller.

A dedicated DeltaV power supply is required.

IO Simulation When used with MYNAH’s MiMiC Simulation Software,

the VIM2 supports I/O simulation all DeltaV M-series I/O cards including classic IO,

Foundation Fieldbus, ProfibusDP, DeviceNet, ASi-bus and Serial.

MiMiC Simulation Software provide dynamic simulation for DeltaV system software acceptance testing

and operator training.

The MiMiC software works by simulating the DeltaV I/O.

It also simulates field devices using Foundation Fieldbus, ProfibusDP, DeviceNet and AS-i buses.

In order for MiMiC to do this, the real I/O cards are disconnected from the control system.

The MiMiC driver writes to the I/O subsystem of the DeltaV controller.

Process models in MiMiC simulate realistic process reactions to control system output signals.

Each process controller being simulated uses one MiMiC Dataset.

A MiMiC server can have up to 32 datasets or ports. Each dataset can support up to 4000 MiMiC

simulation tags.

The I/O simulation driver is provided with the VIM2 hardware, pre-loaded in the VIM2.

The MiMiC Simulation Software must be purchased separately from MYNAH Technologies.

Technical support for the MiMiC Simulation Software and I/O simulation driver is provided by MYNAH

Technologies.

Events that can cause a switchover include.

• Hardware failure within the active card.

• Communications failure between the active card and the controller.

• Detection of a fault in the field wiring.

A switchover may also be initiated from the diagnostics

explorer, and the health and status of both cards and

their channels are available in the diagnostics explorer.

The system automatically commissions a new standby card.

In safe areas, failed cards can be replaced under power.

In hazardous areas, appropriate installation procedures

must be followed.

Switchover of a redundant I/O card is completed within

two scans of the I/O bus. Make-before-break contacts ensure

digital field instruments remain powered and the process

is undisturbed. Analog output signals are briefly driven by

both cards for < 5 ms during switchover of the card.

Hardware Alerts automatically report hardware integrity errors

for both the primary and secondary cards. Any event that

causes a switchover is also reported automatically through the

system hardware alerts and is logged in the Event Chronicle.

I/O Card Redundancy

Redundant I/O cards are available for critical applications.

The same card can be used in simplex or redundant

applications. When installed on a two-wide redundant terminal

block, the cards are recognized as a redundant pair by the

controller. The controller scans each card and determines which

card is acting as the active interface. When a fault is detected,

the system automatically switches to the standby I/O card.

DeltaV Control modules reference simplex and redundant

I/O channels identically and there is no special configuration

required to take advantage of redundancy.

Switchover of a redundant I/O card is completed within

two scans of the I/O bus. Make-before-break contacts ensure

digital field instruments remain powered and the process

is undisturbed. Analog output signals are briefly driven by

both cards for < 5 ms during switchover of the card.

Hardware Alerts automatically report hardware integrity errors

for both the primary and secondary cards. Any event that

causes a switchover is also reported automatically through the

system hardware alerts and is logged in the Event Chronicle.