EMERSONM-series Virtual I/O Module 2

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. 

Ethernet I/O Integration When used with the MYNAH

Ethernet I/O drivers, the VIM2 can communicate with 

high-speed Ethernet networks over Modbus TCP or 

Ethernet/IP. When the VIM2 is configured with the 

appropriate Ethernet I/O driver, the DeltaV Controller autosenses a commissioned VIM2 as four DeltaV Serial Cards.

 In simplex installations these cards will be sensed in 

slots 57-60 or 61-64.

 In redundant installations the redundant pairs will be 

sensed in slots 57 to 64.

Configuration of the I/O signals from the commissioned 

VIM2 is done in the DeltaV Explorer in the same manner 

as a DeltaV Serial Card.

VIMNet Explorer. The VIMNet Explorer utility allows the 

user to commission the VIM2, setup primary and 

redundant VIM2s, and the Ethernet I/O network. The user 

is able to specify the IP address, Subnet Mask, and 

Gateway of each VIM2 and set the node address and 

names of each Ethernet I/O device that is used by the 

VIM2. The 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.

The 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 3rd

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

network or may be a non-DeltaV workstation. The VIMNet 

Explorer runs on the MS Windows XP or Windows 7 

operating system and has an intuitive, graphical user 

interface. Connection to the VIM2 is done through the RJ45 Ethernet Connection on the bottom of the VIM2.

The VIMNet Explorer software installation file for the VIM2 

is available on a DeltaV v12 and later workstation and on 

the DeltaV v12 and later software installation DVD. The 

VIMNet Explorer software installation file is also provided 

with the purchase of a MYNAH Ethernet I/O driver.

VIM Redundancy. Two VIM2s can be setup as a 

redundant pair for installations that require backup

Ethernet I/O networks. Each VIM2 will be installed on its 

own 2-wide carrier, with its own power supply to the left of 

the DeltaV Controller.

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 not provided with the VIM2

hardware; they must be purchased separately from 

MYNAH Technologies. Technical support for the Ethernet

I/O drivers is provided by MYNAH Technologies. 

Supported Industrial Ethernet 

Protocols

Modbus TCP/IP The VIM2 with the Modbus TCP/IP 

Master Driver supports the following Modbus 

communications protocol function codes to read and write 

values to and from a Modbus slave device, as specified by 

the Modbus Application Protocol Specification from 

Modbus-IDA.org.

The VIM2 Modbus TCP/IP Driver supports the following 

Modbus function codes:

 Code 1 - Read Coil Status 

 Code 2 - Read Input Status 

 Code 3 - Read Holding Registers 

 Code 4 - Read Input Registers 

 Code 5 - Force Single Coil 

 Code 6 - Preset Single Register 

 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/IP master 

and slave simultaneously. Master or slave mode is set at 

the virtual port level. In master-only mode, this driver can 

communicate with a maximum of 32 slave devices. 

Systems that use both master and slave mode can 

communicate with a maximum of 16 slaves and 16 

masters at the same time. The master and slave capability 

is available in simplex implementations only. In redundant 

applications, only master mode is supported.

Ethernet/IP The VIM2 with the Ethernet/IP Scanner Driver 

provides the following compatible functions using the