Rockwell Automation 1770, D17706.5.16 Ref Mnl DF1 Protocol Command - Manual (Page 245)

Index I–2
Application layer, 1-7
description of, 1-8
Application layer protocol, 6-1
Application program, how it sends and
receives messages, 6-2
Apply port configuration, 7-4
ASCII codes, 15Ć1
numerical values, 15Ć1
Asynchronous link, description of, 1-2
asynchronous link, definition, 1-2
Asynchronous link status code, STS byte,
8-2
Asynchronous link status codes, 8-1
B
Basic command set
diagnostic counters reset, 7-22
Diagnostic loop, 7-8
Diagnostic read, 7-12 , 7-19
diagnostic status, 7-6
protected bit write, 7-15
protected write, 7-16 , 7-19
Set ENQs, 7-25
set NAKs, 7-25
set timeout, 7-27
set variables, 7-27
unprotected bit write, 7-30
unprotected read, 7-31
Basice command set, unprotected write,
7-32
Binary, 11-3
Binary coded decimal, 11-3
Block check character, determining the
value of, 5-5
C
Character transmission, 2-5
CMD, 6-5
byte format, 6-5 , 6-6 , 6-7
definition, 6-3
Command and reply, 1-9
Command executers, 6-2
Command initiators, 6-2
Commands
delivery order, 1-10
types, 1-11
Comparable memory segments, 7-33
counters, 9-1
Cyclic redundacy check (CRC), 5-6
D
Dat Highway Plus diagnostic counters,
PLC-5, 9-32
DATA, definition, 6-3
Data bytes, description of, 1-9
Data encoding, 11-1
Data Highway
baud rate, 1-3
description, 1-3
floating master, 1-3
node limit, 1-3
trunkline limit, 1-3
Data Highway diagnostic counters
1770-KF2, 9-8
1771-KA, 9-14
1771-KA2, 9-14
1771-KC, 9-16
1771-KE/KF, 9-8
1771-KG, 9-19
1771-KGM, 9-19
1774-KA, 9-14
1775-S5, 9-21
1775-SR5, 9-21
1775-KA, 9-21
1785-KA, 9-26 , 9-27
Data Highway Plus
baud rate, 1-5
description, 1-5
example network, 1-5
formerly known as, P-3
node limit, 1-5
PLC connections, 1-3 , 1-5
Data Highway Plus diagnostic counters
1770-KF2, 9-11
1775-S5, 9-23
1775-SR5, 9-23
1779-KP5, 9-24
1784-KT, 9-25
1784-KT2, 9-25
1785-KA3, 9-28
1785-KA5, 9-29 , 9-30
1785-KE, 9-11
PLC-5/250, 9-33
PLC-5/40,-5/60, 9-30
Data Hoghway Plus, connection to DH-485,
1-6
Data link layer, 1-7
definition, 1-7
Data link layer protocol, description, 2-1