2101 Field Wizard
Section 4 Modbus Protocol
4-5
SCADA systems can be relatively simple, such as one that mon-
itors the environmental conditions of a small office building, or
very complex, such as a system that monitors all the activity in a
nuclear power plant or a municipal water system.
4.5 Common Acronyms
ASCII –
American Standard Code for Information Interchange
DCS –
Distributed Control Systems
MTU –
Master Terminal Unit
OPC –
Object Linking and Embedding (OLE) for Process Control
PLC –
Programmable Logic Controller
RTU –
Remote Terminal Unit
SCADA –
Supervisory Control And Data Acquisition
TCP/IP –
Transmission Control Protocol/Internet Protocol
Summary of Contents for Field Wizard 2101
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