The ISBP Termination Board for Yokogawa’s CENTUM® VP and ProSafe®-RS

Intrinsically Safe BasePlate by Pepperl+Fuchs
The ISBP is a tailored termination board for Yokogawa’s new N-IO devices for the CENTUM VP integrated production control system and ProSafe-RS safety instrumented system (SIS).


Automated detection of the intrinsically safe barriers, optimal use of cabinet space, and software marshaling: all this is available with Pepperl+Fuchs’ Intrinsically Safe Base Plate (ISBP). The ISBP is a tailored termination board for Yokogawa’s new N-IO devices for the CENTUM VP integrated production control system and ProSafe-RS safety instrumented system (SIS).

Compact integrated solution

H-System HiC isolated barrier modules from Pepperl+Fuchs, just 12.5 mm wide, can be mounted along with CENTUM VP or ProSafe-RS N-IO modules on the same ISBP and are automatically detected using an integrated Barrier ID.

Software marshaling

The N-IO from Yokogawa supports a completely new engineering approach that enables wiring to be completed before the signal type for a specific channel has been assigned. The ISBP maintains this philosophy with its design because terminals are attached directly to the board for software marshaling on the field side. Therefore, all the wiring can be completed without an intrinsically safe module being installed. In addition, the modules are “hot swappable” without making any changes to the wiring for a complete integrated solution.

Right size for 20% higher density

The ISBP backplane height of 248 mm is identical to Yokogawa’s standard N-IO Base Plate, allowing customers to standardize on one cabinet design and layout and maximize their cabinet space when using intrinsic safety barriers. This makes it possible to accommodate up to six ISBPs per row on a 1500 mm DIN rail compared to only five termination boards with other solutions on the market. This results in 16 more I/Os per row.

To allow an optimized utilization of the duct, an ISBP is offered for each side with intrinsically safe wiring oriented to the left and right with the numbering order of the I/Os from top to bottom.

ISBP to the dimensions of Yokogawa’s N-IO modules

Pepperl+Fuchs designed the ISBP for the CENTUM VP and ProSafe-RS to the dimensions of Yokogawa’s N-IO module, ensuring a perfect fit in the planning grid of the corresponding standard cabinets.