Index

82

operating level, setting
LK009, 32
LK401, 26
operating levels, 3
operation, 17
optical fiber cable, PC Link System, 10
optical links, 7, 10
P
PC Link Subsystem, 6
PC Link System
diagram
Link Adapters, 6
LR area allocation, 12, 13, 14
Multilevel System, 7, 14
System using optical cable, 10
Multilevel System, 6
transferring data, 7
PC RUN Flag, 59
PCs
applicable, 6
system limitations for, 9
Polling Unit, Multilevel PC Link System, 6
polling unit, 2
precautions
applications, xiii
general, xi
operating environment, xiii
safety, xii
programming examples
simultaneous startup, 16
transferring data between Subsystems, 52
protection, System, PC Link System, 6
R
response time, 21
response time calculations
C1000H, C2000, and C2000H PCs, 46
C200H PCs, 48
C500 PCs, 46
RS–485 connector
LK009, 28
LK401, 24
RS–485 interfaces, 38
S
safety precautions. See precautions
scan time, PC, 26
shield wire connections, 38
shutdown, System, preventing, PC Link System, 6
single–level system example, 8
Special I/O Unit Error Flags, 67
Special I/O Unit error list, 66
Special I/O Unit number, setting (LK401), 25
Special I/O Unit Restart Bits, 67
Special I/O Unit Restart Bits and Error Flags, 60
specifications, 70
standard Omron products for PC Link Systems, 71
Subsystems, PC Link, 2, 3
switch settings, 10
example, 27
LK009, 25, 29
LK401, 32
switches, 24, 28
system configuration, 6
T
termination resistance
LK009, 31
setting on LK401, 26
transfer PC, 7
transferring data, 12
transfer PCs in PC Link System, 7
transmission delay (LK401), 26
transmission distance, 7
Transmission line selector, LK009, 29
transmission line selector, setting
LK009, 32
LK401, 26
transmission time, 21
troubleshooting, 59
U
unit number, word allocation in PC Link System, 13, 14
unit numbers
determining, 9
setting, LK009, 28
W
wiring See connections, 38
work words, PC Link System, 14