Chapter 5
5-30
Remote I/O Functions
5-7 Unit Status
This section explains the Unit status information, which is allocated in the Master when remote I/O
communications are used and can be used to easily monitor the Unit’s status. Refer to 5-2 Switching
the Remote I/O Function for details on allocating unit status to the Master. Refer to 7-2 Smart Slave
Functions for details on making settings such as each functions threshold value.
Note When using the control I/O remote I/o function, there is a default setting available (a default
connection path setting), which attaches the unit status (16 bits) to the remote I/O.
5-7-1 Unit Status
This section explains the I/O format (allocated words) and bit/data functions when the unit status is
allocated to a COS connection.
■ I/O Format (Allocated Words)
● Inputs (Inverter to PLC) Instance ID: 154 Decimal (9A Hex)
Note 1. A shaded box indicates that the bit is not used.
Note 2. Outputs (PLC to Inverter) cannot be allocated.
Byte number Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Wd M Right-
most
0 Con-
nected
compo-
nent
mainte-
nance
flag
Opera-
tion time
over flag
Warning
torque
detected
flag
Cooling
fan/elec-
trolytic
capaci-
tor main-
tenance
flag
Inverter
unit
mainte-
nance
flag
Network
power
voltage
drop flag
Left-
most
1 Error flag Inverter detected fault code
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