modes...............................................................................................................................................6-15

normal operation..............................................................................................................................6-15

stop in the event of fault ..................................................................................................................6-15

test mode..........................................................................................................................................6-16

COR 923A.....................................................................................................................................................6-8

application .......................................................................................................................................6-17

design...............................................................................................................................................6-17

mode switch.....................................................................................................................................6-19

principle of operation ......................................................................................................................6-18

COR 923C..................................................................................................................................6-8, 6-14, 6-17

activating addresses .........................................................................................................................6-27

application .......................................................................................................................................6-20

controls ............................................................................................................................................6-25

design...............................................................................................................................................6-21

indicators .........................................................................................................................................6-25

principle of operation ......................................................................................................................6-21

setting the coordination section.......................................................................................................6-26

setting the DIL switcher ..................................................................................................................6-26

setting the PG multiplexer ...............................................................................................................6-27

switching off the coordination signal ..............................................................................................6-29

Coupling

capacitive coupling ............................................................................................................................3-6

direct coupling ...................................................................................................................................3-6

inductive coupling .............................................................................................................................3-6

mechanisms .......................................................................................................................................3-5

radiated interference ..........................................................................................................................3-6

Current limiting

two-wire transducers .......................................................................................................................9-48

Current sensors

connection........................................................................................................................................9-19

Current/voltage measurement .....................................................................................................................9-82

Cyclic program processing ..............................................................................................................6-15 - 6-16

Cyclic sampling................................................................................................................................. 9-10, 9-57

Data format

setting..................................................................................................................................... 9-50, 9-85

Design

COR 923A .......................................................................................................................................6-17

COR 923C .......................................................................................................................................6-21

CPU 922 ..........................................................................................................................................5-43

CPU 928 ..........................................................................................................................................5-33

CPU 928B........................................................................................................................................5-21

CPU 948 ............................................................................................................................................5-7

Differential measurement.................................................................................................................. 9-82, 9-93

Double addressing............................................................................................................................... 6-8, 6-24

System Manual

C79000-S8576-C199-03

Index

12 - 5

Table of Contents