Emerson numatics g3 series - Glossary of Terms

G3SeriesPROFIBUS‐DPTechnicalManual
Page 69
TDG3PTTM1-2EN 02/09
Subject to change without notice
www.numatics.com/g3
Glossary of Terms
The following is a list and description of common terms and symbols used throughout this document:
Term Description
Auto-Baud
A technology that enables the communication node to automatically set its own baud rate to match the DeviceNet scanners’
baud rate.
Bit Smallest unit of digital information either a “0” or “1”.
Bit mapping Chart showing which bit is connected to which physical input or output point.
Byte 8 bits (1/2 word).
Discrete I / O The Inputs / Outputs that are available via the “Discrete I/O” side of manifold.
Ground This term is used to indicate an earth ground.
Group 2 DeviceNet message group applicable to Numatics’ Serial/Bus products.
MCM
M
anual Configuration Module. A module that allows MAC ID to be set manually via DIP switches. Not required if software
configuration is used.
NEMA National Electrical Manufacturers Association.
Sinking (NPN) Method of connecting electrical circuits in which the zero (0) volt DC side is switched and the common is positive
SCP Short Circuit Protection
Sourcing (PNP) Method of connecting electrical circuits in which the positive side is switched and the common is zero (0) volts DC.
Word 2 Bytes (16 bits)
Z-Board
TM
Circuit board installed in the valve sub-base which electrically connects the valve solenoid to the electrical /electronics
interface. Available in single or double solenoid versions.