Beckhoff AX2000 PROFIBUS DP communication profile Manual de usuario descargar pdf (Pagina 6)

1.3 Symbols used in this manual

danger to personnel from

electricity and its effects

general warning

general instructions

mechanical hazard

ð p.

see ... (cross-ref.) l special emphasis

1.4 Abbreviations used in this manual

The abbreviations used in this manual are explained in the table below.

Abbrev. Meaning

AGND Analog ground

BTB/RTO Ready to operate

CLK Clock signal

COM Serial interface for a PC-AT

DGND Digital ground

DIN German Institute for industrial Standards

Disk Magnetic storage (diskette, hard disk)

EEPROM Electrically erasable programmable memory

EN European standard

IEC International Electrotechnical Commission

INC Incremental Interface

LED Light-emitting diode

MB Megabyte

NI Zero pulse

NSTOP Limit-switch input for CCW rotation (left)

PZD Process data

PSTOP Limit-switch input for CW rotation (right)

RAM Volatile memory

RES Resolver

ROD A quad B encoder

PLC Programmable logic controller

SSI Synchronous serial interface

VAC AC voltage

VDC DC voltage

6 PROFIBUS for AX2000/2500

General 12/05 BECKHOFF

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Beckhoff AX2000 PROFIBUS DP communication profile Manual de usuario Pagina 6