Manual

Index
I–2
Digital signal, 18
Displays, 31
Duplicate message, 39
E
Electrical specifications
Communications Controller, A2
Terminal Block HT16, A4
Terminal Block HT8, A3
End of Message to RTS Off, 39
Environmental specifications
Communications Controller, A2
Terminal Block HT16, A4
Terminal Block HT8, A3
Error detection, 37
Exit, 32
without saving, 35
F
Factory defaults, 33
Fault, 53
hardware fault number, 35
indicator, 35
Faults, hardware, 53
Flow Control, 39
Format
diagnostic commands
Counter Reset, B3
Loop, B1
Read, B2
Status, B3
diagnostic replies
Counter Reset, B3
Loop, B1
Read, B2
Status, B3
Full duplex, 435
communications, 16
G
Grounding, 218
H
Half duplex, 435
communications, 17
Handshake, enabled/disabled, 39
Handshake signals, connection to IBM
computer with, 228
Hardware faults, 35, 53
HART
address, 45, 410
Command, 48, 411
delimiter, 45, 49
packet, 41, 44
burst data, 49
poll, 45
response, 49
protocol, 44
HART communications protocol, 18
and the Smart Transmitter Interface, 19
burst mode, 110
poll/response mode, 110
specifications, A5
I
Installation procedure
connecting the Controller to the Terminal
Blocks, 24
linear connection, 25
maximum cable lengths, C3
star connection, 26
grounding, 218
I/O connection
to 1771 I/O devices, 212
to HART field devices, 213, 214
mounting on DIN rail, 23
overview, 22
power supply connections
to the Communications Controller,
220
to the Terminal Blocks, C4
separate power supply to the Terminal
Blocks, C4
J
Jumper blocks, 220
Jumper positions for DSR and CTS lines
25 pin, 227
9 pin, 227
L
LEDs, interpreting
Communications Controller, 52