Rockwell Automation Publication 2080-UM002K-EN-E - March 2019 61
Communication Connections Chapter 5
EtherNet/IP, supported on the Micro850 and Micro870 controller, makes use of
the standard Ethernet TCP/IP protocol.
The Micro850 and Micro870 controller supports up to 23 simultaneous
EtherNet/IP Server connections.
To configure CIP Serial, see Configure CIP Serial Driver
on page 65.
To configure for EtherNet/IP, see Configure Ethernet Settings
on page 70.
CIP Symbolic Addressing
Users may access any global variables through CIP Symbolic addressing except for
system and reserved variables.
One- or two-dimension arrays for simple data types are supported (for example,
ARRAY OF INT[1..10, 1..10]) are supported but arrays of arrays (for example,
ARRAY OF ARRAY) are not supported. Array of strings are also supported.
Supported Data Types in CIP Symbolic
Data Type
(1)
(1)
Logix MSG instruction can read/write SINT, INT, DINT, LINT and REAL data types using “CIP Data Table Read”
and “CIP Data Table Write” message types.
BOOL, USINT, UINT, UDINT, ULINT, LREAL, STRING, SHORT_STRING, DATE, and TIME data types are not
accessible with the Logix MSG instruction.
Description
BOOL Logical Boolean with values TRUE(1) and FALSE(0)
(Uses up 8 bits of memory)
SINT Signed 8-bit integer value
INT Signed 16-bit integer value
DINT Signed 32-bit integer value
LINT
(2)
(2)
Not supported in PanelView Component or PanelView 800.
Signed 64-bit integer value
USINT Unsigned 8-bit integer value
UINT Unsigned 16-bit integer value
UDINT Unsigned 32-bit integer value
ULINT
(2)
Unsigned 64-bit integer value
REAL 32-bit floating point value
LREAL
(2)
64-bit floating point value
STRING character string (1 byte per character)
DATE
(3)
(3)
Can be used by sending data to UDINT, mainly for use with PanelView Plus and PanelView 800 HMI terminals.
Unsigned 32-bit integer value
TIME
(3)
Unsigned 32-bit integer value
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