KEYENCE KV Series - Manual (Page 226)

Appendices
2-202
Appendices
0500
#0010
T000
0500
2002
#0010
T000
X
A 0500 B D E E
C
X A B
C
0500
X X
A B C
0500
A B
D
C 0500
0501
A B
D
C 0500
0501
H-2 Precautions for programming
• A coil output or timer/counter cannot be connected directly from a bus. When an
output coil or a timer/counter is required, insert a b contact of an unused internal
utility relay, a b contact of an unused special utility relay, or a special utility relay
2002 (always ON) as a dummy.
• A contact cannot be connected to an output line.
• Make sure that every contact/coil is located on a path from a bus to an output
line. Make sure that there are no unconnected portions.
• Make sure that illegal short-circuits are not generated in parallel connection.
• Circuits including output coils cannot be connected in parallel.
However, parallel connection is enabled when each circuit in parallel connection
is connected to an output line respectively.
KVSKA Appendix.P65 08.3.11, 11:26 AM 202