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Checking Operations of CS-series and CJ-series Master Units
Section 6-3
For details on the words used to set the Slave registration function, refer to
3-5 Slave Registration Function and Communications Stop Mode
.
Word
Bit
Name
Function
+4
00
Registration Completed
Flag
This flag is turned ON when all registered Slaves have joined the net-
work. If all the registered Slaves have joined the network within the reg-
istered Slave participation monitoring time this flag will turn ON even if
unregistered Slaves have also joined. The flag will not turn ON, how-
ever, if there are no Slaves set in the Slave registration table. The flag
will remain ON until the power is turned OFF and ON again or the Unit
is restarted.
08
Verification Error Flag:
Slave Missing
This flag is turned ON under the following conditions.
Registered Slaves do not join the network within the registered Slave
participation monitoring time. When the Slave that caused the verifica-
tion error is joined in the network, the flag will automatically be turned
OFF.
Check which Slave caused the error in the bit for verification error
(Slave missing) in Output Slave (first word + 6) or verification error
(Slave missing) in Input Slave (first word + 7).
09
Verification Error Flag:
Unregistered Slave in Net-
work
This flag is turned ON when an unregistered Slave has joined the net-
work. The flag will remain ON until the power is turned OFF and ON
again or the Unit is restarted, even if the Slave that caused the verifica-
tion error is removed from the network.
Check which Slave caused the error in the bit for Output Slave verifica-
tion error (unregistered Slave in network) (first word + 8) or Input Slave
verification error (unregistered Slave in network) (first word + 9).
10
Communications Stopped
Flag
This flag is turned ON when the Master Unit is set to communications
stop mode and remote I/O communications stop due to a communica-
tions error,.
Once the flag has turned ON, the status remains until the power is
turned OFF and ON again or the Unit is restarted.
Check which Slave caused the error in the bits for communications
stopped node number (bits 00 to 07 of first word + 5) and communica-
tions stopped Slave type (bit 15 of first word + 5).
15
Error Flag
This flag is turned ON when any of the bits 08 to 10 are set to1(ON).
The flag is automatically turned OFF when all the bits 08 to 10 are
turned OFF.
+5
00 to 07
Communications Stopped
Node Number
When the Master Unit is set to communications stop mode and remote
I/O communications stop due to a communications error, the node
number of the Slave that caused the error is stored as a 2-digit hexa-
decimal (00 to 0F: 1 to 15).
Check the Slave type (Output or Input) in the word for communications
stopped Slave type (bit 15 of first word + 5).
The node address stored will be held until the power is turned OFF and
ON again or the Unit is restarted.
15
Communications Stopped
Slave Type
When the Master Unit is set to communications stop mode and remote
I/O communications stop due to a communications error, the Slave type
of the Slave that caused the error is stored as follows:
0 (OFF): Output Slave
1 (ON): Input Slave
Check which Slave caused the error in the bits for communications
stopped node number (bits 00 to 07 of first word + 5)
When communications have stopped, the bit status is held until the
power is turned OFF and ON again or the Unit is restarted.
