...
GIC | Global Interlock Controller |
LIC | Local Interlock Controller |
PAC | Programmable Automation Controller |
PLC | Programmable Logic Controller |
SIL | Safety Integrity Level |
SRCF | Safety-Related Control Function |
TÜV | Technischer Überwachungsverein (German) (English: Technical Inspection Association) An internationally accepted independent testing and certification organization. |
...
Global Interlock System
...
Overview
The GIS is not a single device instead, the GIS is a distributed group of devices working together to form an overall safety system. These devices are safety-rated Allen-Bradley GuardLogix® Programmable Automation Controllers (PAC) and safety-rated Guard I/O modules. Communication throughout the GIS is conducted over a redundant independent safety network. This network communication utilizes a network-independent safety protocol, which has been certified for use in SIL3-rated applications.
...