GE IS410TRLYS1D Mark VIeS Relay output with solenoid integrity check

The Mark * VIeS Functional Safety System reflects GE’ s  experience of three-plus decades, 

four generations, and over 10,000 installed Triple Modular Redundant(TMR) systems. 

The Mark VIeS is certified to IEC 61508 standards to meet the  needs of the majority of safety requirements – SIL 2 and SIL 3.

A proven and safe solution

GE brings decades of domain expertise to the Mark VIeS Functional Safety

System. The Mark series of controllers has earned a reputation for superior running 

reliability and superior tripping reliability when required in thousands of TMR 

systems installed in power generation and infrastructure applications globally. These 

proven philosophies are atthe heart of the Mark VIeS Functional Safety System.

Flexibility and reliability Redundancy is a critical feature in safety control system design,

enabling continuous process operation during system maintenance or repair. 

The Ethernet backbone of the Mark VIeS Functional Safety System allows each segment of the system to be configured with different levels of redundancy as follows:

• Can be: Simplex, Dual, or TMR

• I/Onetwork (IONet) communications can be: Simplex, Dual, or TMR

• I/O modules can be: Simplex or TMR This flexibility enables customers to design 

their system to meet the exact needs of their SIL application requirements, and ultimately reducing system costs. 

Customers can customize the level of redundancy to meet safety and running reliability needs.

Simplex Contact Input (STCI) Terminal Board

The STCI terminal board is a compact contactinputterminal board 

used for Simplex configurations. The STCI accepts 24 contact 

inputs that are supplied with a nominal 24 or 48 V dc excitation 

from an external source, or I/O wetting power supply. The contact 

inputs have noise suppression to protect against surge and highfrequency noise. The YDIA mounts directly on the STCI terminal 

board. The STCI is available in multiple versions to meet customer 

requirements. The STCI Terminal Board with YDIA I/OPack

Specifications table provides the specifications for the STCI versions 

available for use in the Mark VIeS Functional Safety System.

Contact Input (TBCI) Terminal Board

The TBCI terminal board is a contact input terminal board used 

for Simplex, Dual, or TMR configurations. The TBCI accepts 24

dry contact inputs wired to two barrier-type terminal blocks. For 

contact excitation, dc I/O wetting power is wired to the TBCI. The 

contact inputs have noise suppression to protect against surge 

and high-frequency noise. The YDIA I/Opack(s) mount directly on 

the TBCI terminal board. The TBCI is available in multiple versions 

to meet customer requirements. The TBCI Terminal Board with 

YDIA I/OPack Specifications table provides the specifications for 

the TBCI versions available for use in the Mark VIeS Functional Safety System.

Hardware Tips and Specifications

This pack has an internally placed BPPx processor board as well as an acquisition board that is used for thermocouple input functions.

Before even considering any ultimate purchase decision on this IS220PTCCH1A device, 

it is crucial to understand the fact that this IS220PTCCH1A device is actually not the originally-developed product of its specific Mark V Series intended functional role, 

as that would in fact be the IS220PTCCH1 parent Thermocouple Input Module noticeably not adopting this IS220PTCCH1A device's sole A-rated functional product revision. 

The IS220PTCCH1A can be used in simplex, duplex, and triple modular redundant applications.

This board can support E, J, K, S, and T standard thermocouples as well as mV inputs with a span of -8 to 45 mV.  E, J, K, S, and T thermocouples 

can be either grounded or ungrounded and can be located up to 984 feet from the turbine I/O panel.  Cable resistance must be kept to a maximum 450 Ω. 

The number of packs used dictate the following:

Qty 1 IS220PTCCH1A - 12 Thermocouple Inputs

Qty 2 IS220PTCCH1A - 24 Thermocouple Inputs

Qty 3 IS220PTCCH1A - Used in TMR Configurations