USER MANUAL 1771-DCM User Manual

A
Application Examples, 23
Audience, 11
B
Baud Rate, 32
Block Length, 62, 611
Block Transfer, 66
Errors, Causes of, 82
C
Connections to Module, 41
D
Data Highway, 22
Data Transfer
Block Transfer Example, 612
Discrete Data Example, 64
Data Words, Available, 51
Description of 1771-DCM, 21
Discrete Data Transfer, 71
E
Errors, Indicated by Status Bits, 83
I
Instructions
Block Transfer, 62
File Move, 62, 611
K
Keying, 23
L
LED Displays, 81
M
Module Address, 62, 611
Module Group Number, 36
O
Options, Selection of, 22, 31
Overview of 1771-DCM, 21
P
Processors, Compatible, 23
Programming, PLC-2 Family Processors
Local Processor, 61
Programming, PLC-3 Supervisory
Processor, 61, 63, 64, 67,
68, 69, 610
Supervisory Processor, 63
Protected Data, 33
Publications, Related, 11
Purpose of Manual, 11
R
Rack
Address, 23
Number, 34
Size, 34
Rack, Last, 33
S
Specifications, 84
Status Bits, 51
Status Word
Read by Local Processor, 52
Read by Supervisory Processor, 53
Switch Bank Settings on 1771-DCM, 32,
63
T
Terminator Resistor, 42, 43
Terminology, 11
Timing Considerations, PLC-3
Program Scan, 76
Reducing Scan Time, 711
Scanner Scan, 77
Special, 712
Index