VIPA System 200V IM Series, Manual

Page: 276 / 348

Chapter 6 DeviceNet
Manual VIPA System 200V
6-16 HB97E - IM - Rev. 06/29
I/O addressing of the DeviceNet scanner
The DeviceNet coupler determines the modules installed on the backplane
bus automatically and uses the result to generate the number of input and
output bytes.
You have to determine these two values when you configure the
input/output modules and enter them in the DeviceNet scanner (master):
•
produced connection size (number of input bytes)
•
consumed connection size (number of output bytes)
The addressing results from the sequence of the modules (plug-in location
1 to 32) and the base address that was defined in the DeviceNet scanner
for the bus coupler.
•
Set the DeviceNet scanner to connection type POLL IO.
•
Define the parameters:
"Receive data size" = number of input bytes
"Transmit data size" = number of output bytes
•
Define the base address (mapping) of receive data and transmit data as
required.
•
Activate the DeviceNet coupler IM 253DN in the scan list.
•
Start the DeviceNet scanner.
When the DeviceNet scanners have been configured, the input and output
modules are accessible via the defined addresses.
The following 6 modules have been installed into the backplane bus:
Plug-in
location Installed module Input data Output data
Slot 0 DeviceNet coupler - -
Slot 1 Digital Out SM 222 1Byte
Slot 2 Digital Out SM 222 1Byte
Slot 3 Digital In SM 221 1Byte
Slot 4 Analog In SM 231 4Words
Slot 5 Analog Out SM 232 4Words
Total:
1+4*2=9Byte
1+1+4*2=10Byte
The result is:
•
produced connection size: 9Byte (sum of input bytes)
•
consumed connection size: 10Byte (sum of output bytes)
DeviceNet scanner
configuration
Example