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Checking Operations Section 2-5
The following diagram shows the Status Area configuration for unit number 0.
2-5 Checking Operations
Use the procedures provided here to check that I/O communications are oper-
ating normally.
2-5-1 Indicator Status
I/O communications are operating normally if the MS and NS indicators for all
nodes are lit in green, and the 7-segment indicator on the front panel of the
Master Unit is displaying the node address of the Master Unit as shown in the
following diagram (when the Master Unit’s node address is 00), and the scan
list is enabled.
2-5-2 Reading and Writing Data
Connect the Peripheral Device for the PLC to the Master Unit, write the Mas-
ter Unit’s Output Area and are read the Input Area, and check that the data is
the same in the Slaves.
Refer to the operation manual for the Master Unit for details on Output Area
and Input Area addresses and how to allocate Slave I/O.
Master Status Area 1 (1 word)
Master Status Area 2 (1 word)
Current Communications Cycle Time
(1 word)
DM Area
IR Area
Registered Slave Data Area (4 words)
Normal Slave Data Area (4 words)
IR 101
IR 102
DM 6032
DM 6033
IR 106
IR 109
Master Unit
OFF: Scan list enabled
Master Unit node address 00
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