USER MANUAL

B
block addressing, SLC, 53
C
combinations, acceptable processor and
block I/O, 31
compatibility, extended node numbers, 39
configuration switches, 41
SLC, 51
connecting block I/O, in a PLC system, 23
connecting wiring, 33
1791-IOBA, 33
1791-IOBB, 34
D
description, 21
DH-485 port, 22
E
extended node capability, 38
F
features, 21
I
I/O rack addressing
PLC-2 family, 42
PLC-3 and PLC-5/250, 43
PLC-5, 43
image table usage, 43
1791-IOBA, 44
1791-IOBB, 45
L
LED indicators, 61
M
mounting dimensions, 32
P
power supply requirements, 35
R
related publications, 12
remote I/O link connector, 22
remote I/O link wiring, 36
S
series connections
PLC-2, PLC-3 and PLC-5, 36
SLC, 37
sinking inputs, 22
description, 22
sourcing outputs, 22
description, 22
specifications, A1
status indicators, 22
switch assemblies, 22
T
termination resistor, 38
troubleshooting chart, 62
types of block I/O, 21
W
wiring cable, 35
wiring connections, definitions, 34
Index