Rockwell Automation RECOMM-IBUS Interbus Communications Module - Manual (Page 61)

Using Explicit Messaging (PCP Communications) 7-1
C
HAPTER
7
Using Explicit Messaging
(PCP Communications)
Chapter 7 provides information and examples that explain how to
use Explicit Messaging to monitor and configure the module and
connected SP600 drive, as well as other peripherals.
7.1 About Explicit Messaging
Explicit Messaging (PCP Communications) is used to transfer data
that does not require continuous updates. With Explicit Messaging,
you can configure and monitor a slave device’s parameters on the
Interbus network.
To be able to use Explicit Messaging in the module, PCP Comm Act
(57) must be set to “Enabled”.
!
ATTENTION: The examples in this publication are
intended solely for purposes of example. There are
many variables and requirements with any
application. Rockwell Automation does not assume
responsibility or liability (to include intellectual
property liability) for actual use of the examples
shown in this publication. Failure to observe this
precaution could result in bodily injury or damage to
equipment.
ATTENTION:If Explicit Messages are programmed
to write parameter data to Non-Volatile Storage
(NVS) frequently, the NVS will quickly exceed its life
cycle and cause the drive to malfunction. Do not
create a program that frequently uses Explicit
Messages to write parameter data to NVS. Datalinks
do not write to NVS and should be used for frequently
changed parameters. Failure to observe this
precaution could result in damage to, or destruction
of, equipment.