Hardware manual

Impact Reference Guide EtherNet/IP Read Implicit Assembly
3-193 Datalogic Automation Inc.
Additional inputs and outputs can be added. Data values in the added inputs are sent with the message, while
values in the added outputs are filled in when the message from another device is received. You can use an
EtherNet/IP device’s data sheet to provide the appropriate values for each input and output.
To create a new input our output, click the appropriate Add button, then select the data type from the type
properties drop down.
The following fixed inputs and outputs are available.
EtherNet/IP Read Implicit Assembly
In the Communication Drawer
The EtherNet/IP Read Implicit Assembly tool provides a method for reading a reserved data area (called a
static assembly) on the Impact device. Other EtherNet/IP devices can write data to this area. Additional out-
puts, which are appended to the static assembly, can be added. You can define a task trigger event to detect
when this occurs. (See "EtherNet/IP Implicit Assembly Event" on page 3-37.)
To create a new output, click the Add Output button, then select the data type from the type properties drop
down.
The tool has an additional General property - Offset.
• Offset - This value indicates the static assembly location where the tool should begin reading. This
allows multiple VPM EtherNet/IP tools to read from the static assembly.
EtherNet/IP Write Implicit Assembly
In the Communication Drawer
Input Name What it is
Network Path The comma-separated address of the destination EtherNet/IP device.
Also known as Epath.
Class The predefined class number for the destination device. The Impact
device’s class definition is 100 (hexadecimal 64)
Instance Which function on the device should receive the message.
Service What the device should do.
Get Single Attribute - 100
Set Single Attribute - 101
Get All Attributes - 102
Set All Attributes - 103
Cause EtherNet/IP Event - 104
Set Online State - 105 (Attribute value of 0 = offline; non-zero = online)
Attribute The value for the service function.
Member The element of the message data structure to access.
Output Name What it is
Write Succeeded If True, the message transfer was successful.