Rockwell Automation DeviceNet Communications Module - Manual (Page 35)

Configuring the DeviceNet Module 4-9
Cyclic and polled data exchanges are configured in the scanner, so
you only need to set the I/O configuration in the module. COS data
exchange must be configured in both the module and the scanner.
You need to set the I/O configuration and COS parameters in the
module.
4.7.1 Using COS (Change of State) Data Exchange
Step 1. Set the bits in the Logic Status word that should be
checked for changes in COS Status Mask (12). The bit
definitions for the Status Mask will depend on the drive to
which you are connected. Refer to the drive
documentation.
Step 2. Set the amount of change to the Feedback that is required
to trigger a Change of State message in COS Fdbk
Change (13).
.
The module is now configured for COS data exchange. You must
configure the scanner to allocate it using COS (see chapter 5,
Configuring the Scanner).
Figure 4.9 – COS Status Mask Configuration Screen on an LCD OIM
Figure 4.10 – COS Fdbk Change Configuration Screen on an LCD OIM
COS Status Mask
Parameter: # 012
0
VALUE LIMITS SEL
Value Description
0 Ignore this logic bit. (Default)
1 Check this logic bit.
COS Fdbk Change
Parameter: # 013
0
VALUE LIMITS SEL