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CJ1W-SRM21 Master Unit for CJ-series PLCs Section 4-3
The functions of each area are given in the following table.
Word Bit Name Function
+0 00 Output Slave Regis-
tration Table
OUT0 Registers a list of the Output
Slaves that are normally oper-
ating in the network. This list is
used for checking the Slaves
with the Slave registration func-
tion. Bits 00 to 15 correspond
to Slave node numbers 0 to 15.
The Output Slave is registered
by turning ON its correspond-
ing bit.
The bits in the Special I/O Unit
Area must be registered to cor-
respond to the node numbers
actually used by the Slaves.
Therefore, for Slaves with 16
points or higher, turn ON the
bits for the other node numbers
too. For example, the two con-
secutive bits used by a 16-point
Slave or the four consecutive
bits used by a 32-point Slave
must be set.
01 OUT1
02 OUT2
to to
13 OUT13
14 OUT14
15 OUT15
+1 00 Input Slave Registra-
tion table
IN0 Registers a list of the Input
Slaves that are normally oper-
ating in the network. This list is
used to check the Slaves with
the Slave registration function.
Bits 00 to 15 correspond to
Slave node numbers 0 to 15.
The Input Slave is registered by
turning ON its corresponding
bit.
01 IN1
02 IN2
to to
13 IN13
14 IN14
15 IN15
+2 00 to 15 Registered Slave Par-
ticipation Monitoring
Time
The waiting time between when the Master Unit is started until the Slaves
start to be checked using the Slave registration function. The time is set in
increments of 1 ms as a hexadecimal.
The setting range is 0000 (default is 2000 ms) or 0001 to FFDC (1 to 65500
ms). If the monitoring time lapses and there are still registered Slaves not
joined in the network, a verification error (Slave missing) will occur.
+3 00 to 15 Reserved for system
use.
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