GE Mark VIe System Manual page 73

2.3.3 Simplex
The Mark VIeS Simplex Control Mode is used for one out of one (1oo1), SIL 2 low demand for de-energize to trip
applications.
Simplex Controller
Simplex Mark VIeS controller
receives inputs and sends
outputs on the one I/O network.
I/O Network
Ethernet based I/O network
supports both centralized and
distributed I/O modules.
Sensor
A
Single Sensor
Single sensor
wired to a single
input module
with a simplex I/
O network to
controller.
Functional Safety
R
Sensor Sensor
A1 A2
Dual Sensor
Dual sensors
wired to
independent input
modules with a
simplex I/O
network to
controller.
Public Information
PC Based Gateway
PC based communication interface,
options:
- OPC-DA server
- OPC-UA server
- Modbus master
Embedded Controller Gateway
Embedded controller for
communication interface,
options:
- OPC-UA server
- Modbus slave
Actuator
Simplex Output
One output pack
receives an output
command from the
controller.
GEH-6721_Vol_I_BP System Guide 73
Third Party
Control
System