Setup
Page 91 of 178
same transaction. The user will need to see which custom services that target device
supports in t
hat device’s user manual.
Read Tag
When using a Logix controller as a EtherNet/IP Device, the ControlNet Router module
can read a Logix tag from the target Logix controller using Class 3 or UCMM
messaging. The value from the tag will be saved at the configured Input Offset.
Write Tag
When using a Logix controller as a EtherNet/IP Device, the ControlNet Router module
can write to Logix tag from the target Logix controller using Class 3 or UCMM
messaging. The value from the tag will be read from the configured Output Offset.
Scan
The user can select Scan Class
A
,
B
,
C
or
D
(which was configured in the EtherNet/IP
Devices tab). The specific mapped item will then be executed at that configured scan
class rate.
The user can also select the
S
class which means that the mapped item will only
execute once when communication to the target device is established. If the target
device goes offline, then the mapped items with this class will be re-armed, and
resent when communication is re-established.
Service
The custom CIP service/function which is only available when the
Custom
function
has been selected.
Class, Instance,
Attribute
The CIP class, instance, and attribute of the request message to be sent.
Input Offset
The location in the Internal Data Space where the received data will be written.
This will only be available for
Get
and
Custom
functions.
Get Length
The length of the data to be received. If the number of bytes received is more than the
Get Length, then the data will
not
be written to the Internal Data Space.
This will only be available for
Get
and
Custom
functions.
Output Offset
The location in the Internal Data Space from where the data to be written to the target
device will be read.
This will only be available for
S
et
and
Custom
functions.
Set Length
The length of the data to be written.
This will only be available for
Set
and
Custom
functions.
Data Type
The data type of the Static Value.
This will only be available for
Set
Static
function.
Tag / Static Value
The value to be written to the target device when the
Set Static
function has been
selected.
Note
: When using the SINT Array data type, the values must be entered as space-
delimited hex values. For example: 05 34 2E A1
Table 3.15
–
EtherNet/IP Map configuration parameters
