User manual

Ethernet Communication Services
92
33002479 06 07/2008
Bandwidth Monitoring
Overview Bandwidth Monitoring allows the user to access and monitor the NOE’s CPU
allocation for each of the following services:
z Global Data (see Global Data (Publish / Subscribe) Utility, p. 187)
z I/O scanning (see I/O Scanner, p. 199)
z Modbus messaging (see Modbus Messaging, p. 85)
The Bandwidth Monitoring service retrieves workload data and returns one of two
pieces of information: whether the module has free resources or whether the module
is working at capacity. Knowing the resource allocation helps you:
z assess resource allocation
z determine the number of NOEs needed in a system
Note: Users who want to use Bandwidth Monitoring do not need to develop a new
set of access functions. The actual NOE CPU load is computed each second.