Allen-Bradley's CompactLogix and ControlLogix family of PLCs uses this communication protocol. The programming
software used by these PLCs is RSLogix5000 or Studio 5000 Logix Designer.
The iVu can be controlled via EtherNet/IP using assembly objects. From the point of view of a PLC, there are three input
assemblies and two output assemblies.
The Originator of the EtherNet/IP connection is the PLC. The Target of the EtherNet/IP connection is the iVu. The direction
of communication can be described as T > O or O > T (sometimes also shown as T2O or O2T).
15.4.1 Inputs to the
iVu
(Outputs from the PLC)
PLC Assembly Instance 112 (0×70) - 6 Registers (
iVu
Inputs/PLC Outputs)
Data transfer direction: Originator (PLC) to Target (iVu). Assembly Instance 112 (0×70) is a small group of registers used for
basic control of the iVu.
WORD #
WORD NAME
DATA TYPE
0
Input Bits Register (see
(p. 140))
16-bit integer
1-2
Product Change Number
32-bit integer
3-5
reserved
16-bit integer
PLC Assembly Instance 113 (0×71) - 240 Registers (
iVu
Inputs/PLC Outputs)
Data transfer direction: Originator (PLC) to Target (iVu). Assembly Instance 113 (0×71) has more registers than Assembly
Instance 112. This allows for more comprehensive control of the iVu, including Command Channel functionality.
WORD #
WORD NAME
DATA TYPE
0
Inputs Bit Register (see
(p. 140)
16-bit integer
1-2
Product Change Number
32-bit integer
3-49
reserved
32-bit integer
50
Command ID
16-bit integer
51
Command Parameter Int16
16-bit integer
52-53
Command Parameter Int32
32-bit integer
54-55
Command Parameter Float
Float
56-57
String Length
32-bit integer
58-107
String Parameter
100-Byte Array
108
reserved
16-bit integer
109-210
for Barcode models only
211-239
reserved
16-bit integer
15.4.2 Outputs from the
iVu
(Inputs to the PLC)
PLC Assembly Instance 100 (0×64) - 30 Registers (
iVu
Outputs/PLC Inputs)
Data transfer direction: Target (iVu) to Originator (PLC). Assembly Instance 100 is a small block of registers providing basic
inspection results from the iVu.
Note: Assembly Instance 100 does not provide sensor-specific information.
WORD #
WORD NAME
DATA TYPE
0
Input Bits ACK Register (see
(p. 140))
16-bit integer
iVu Plus TG and Color Gen2 Image Sensors
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