User Manual

90 • Fieldbus-specific Additions
ETHERNET
WAGO-I/O-SYSTEM 750
I/O Modules
5.3.1.2 EtherNet/IP Protocol
With the EtherNet/IP protocol, Bluetooth
®
data can be accessed in two ways.
In predefined instances of the assembly object, digital and analog input and
output data of a node are transmitted with a command to, or from, the Blue-
tooth
®
module. The application in the Bluetooth
®
module can then address the
data in the memory. The data is stored in the module in the same manner as
when mapping in the coupler/controller. The byte-oriented module data (ana-
log modules and special modules) and the bit-oriented module data (digital
modules) are stored in the memory separately according to input and output
image. The memory address can then be determined from the type of module
and its position.
The data in the Bluetooth
®
module can be directly addressed with the analog
input point object or the analog output point object. The instance number of
the respective object is based on the position of the module in the node.
5.3.1.2.1 Example
A node contains the following modules with input and output process image:
3 x 750-402 for every 4 bits of input data,
1 x 750-452 4 bytes of input data,
1 x 750-644 12 bytes of input and 12 bytes of output data,
1 x 750-550 4 bytes of output data,
1 x 750-452 4 bytes of input data,
1 x 750-550 4 bytes of output data,
1 x 750-452 4 bytes of input data,
1 x 750-504 4 bits of output data.
The Bluetooth
®
module uses a process image of 12 bytes with a mailbox size
of 6 bytes. The mailbox is unmasked.