ETHERNET/IP™ LED Standard
Ethernet Software Reference Guide
31
ETHERNET/IP™ LED Standard
Table 2 below shows the LEDs supported by ETHERNET/IP™.
Table 2. ETHERNET/IP™ supported LEDs
LED Color State Indicates
Module Status None Off No Power
Red Solid Unrecoverable fault
Flashing Recoverable fault
Green Solid Normal runtime operation
Flashing N/A
Red/Green Alternating Self test
Network Status None Off No power / No Ethernet Link
Red Solid Unrecoverable fault
Flashing Recoverable fault or I/O connection
timed o
u
t
Green Solid Normal runtime operation (I/O Con-
nection Allocated)
Flashing Device is idle or is not allocated to a
Client (PLC)
Red/Green Alternating Self test
ETHERNET/IP™ Object Model
Table 3 describes data types used in this Object Model.
Table 3. Object Model data types
Data Type Description
USINT Unsigned Short Integer (8-bit)
UINT Unsigned Integer (16-bit)
UDINT Unsigned Double Integer (32-bit)
SINT Signed Integer (8-bit)
INT Signed Integer (16-bit)
DINT Signed Integer (32-bit)
STRING Character String (1 byte per character)
SHORT STRING
nn
Character String (1
st
byte is length; up to
nn
characters)
STRINGI International String format
BYTE Bit String (8-bits)
WORD Bit String (16-bits)
DWORD Bit String (32-bits)
REAL IEEE 32-bit Single Precision Floating Point
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