EMERSONS-series Mass Connection Solutions

than 3m. 

Up to 16, 24 VDC based discrete input Signals can be 

connected to each of the DI Plus Mass Connection Boards by 

screw terminals. Dry Contact or 24 VDC Isolated Field Signals 

are supported by the 2- row screw architecture.

Yellow LED’s are providing status Indication for each Channel, 

while the replaceable fuses can be used to disconnect loop 

power to the field, during maintenance activities.

A Termination Fault Detection feature is built into each of 

the DI Plus Mass Connection boards which allows the new

redundant S-series Plus DI, 32 Channel, 24 VDC, Dry Contact 

cards to detect power or cable failures on the board. There is a 

jumper on the board to be able to turn this feature off, in case 

rewiring needs to be performed while the process is running. 

The new S-series Plus DI, 32 Channel, 24 VDC, Dry Contact 

card does have two new parameters in the Explorer view, 

one for each cable connection. When these Parameters are 

turned on, DeltaV Diagnostics will mark the status of affected 

Signals accordantly.

Please refer to the Cross Reference List for your application.

DO Plus Mass Connection Board

The DO Plus Mass Connection Solution (set of four boards) 

connects to the existing simplex S-series DO, 32 Channel, 24 

VDC, High-Side cards as well to the new redundant S-series 

Plus DO, 32 Channel, 24 VDC, High-Side cards by using either 

two ribbon cables with 20-Pin connectors or two of the 20-Pin 

standard Round Ribbon Cable, which is required if the distance 

is longer than 3m. Two DO Plus Mass Connection boards 

need to be daisy chained to get to 16 Channels, which can be 

connected back to the card. A short ribbon cable with 20-Pin 

connectors can be used for that purpose too.

Up to 8 Field devices can be connected to each of the DO Plus 

Mass Connection Boards by screw terminals. Either +24 VDC 

high-side relay outputs or voltage free relay contacts can 

be used, pending on the position of the fuse, which can be 

jumpered for this reason.

Yellow LED’s are providing status Indication for each Channel, 

while the replaceable fuses can be used to disconnect loop 

power to the field, during maintenance activities.

A Termination Fault Detection feature is built into each of 

the DO Plus Mass Connection boards which allow the new 

redundant S-series Plus DO, 32 Channel, High-Side cards to 

detect power or cable failures on the board. There is a jumper 

on the board to be able to turn this feature off, in case rewiring 

needs to be performed while the process is running