Link Relay (B) - Mitsubishi MELSEC QS Series User Manual

9
DEVICE EXPLANATION

9.2.6 Link relay (B)

(1) Definition
Link relay is a CPU module side relay used when refreshing the link relay (LB) data of
the CC-Link IE controller network module or MELSECNET/H module to the CPU
module, or when refreshing the CPU module data to the link relays (LB) of the CC-
Link IE controller network module or MELSECNET/H module.
(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.
CPU module
Link relay
B0
X100
SET B0
B0
X102 B0
X104 B0
CC-Link IE controller
network module
Link relay
LB0
Link refresh
Diagram 9.15 Link refresh
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.
K20
T0
Y100
B0 ON/OFF information is output from the CC-Link
Safety remote I/O unit to an external destination.
B100
B1FFF
Diagram 9.16 Link Relay
9.2 Internal User Devices
9.2.6 Link relay (B)
9
10
Link refresh
11
setting range
9
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