User`s manual

9
DEVICE EXPLANATION
9.2 Internal User Devices
9.2.6 Link relay (B)
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9
Device Explanation
10
CPU Module Processing Time
11
Procedure for Writing Program to CPU ModuleAppendicesIndex
9.2.6 Link relay (B)
(1) Definition
Link relays are CPU module side relays used when refreshing the link relay (LB) data
of the MELECNET/H module, etc. to the CPU module or when refreshing the CPU
module data to the link relays (LB) of the MELECNET/H module, etc.
(2) Number of used N/O and N/C contacts
There are no restrictions on the number of contacts (N/O contacts, N/C contacts) used
in the program.
Diagram 9.15 Link refresh
Diagram 9.16 Link Relay
Link relayLink relay
B0
LB0
CPU module MELSECNET/H module
Link refresh
setting range
Link refresh
X100
B0
T0
Y100
X102 B0
B100
X104 B0
B1FFF
SET B0
K20
No restrictions on the quantity used.
B0 switches ON at X100 OFF to ON.
The link relay (B0) ON can only be used for
internal CPU module processing, and cannot be
output externally.
B0 ON/OFF information is output from the CC-Link
Safety remote I/O unit to an external destination.