Download M340 EHC 0200 Manual..

Introducing Language Objects for Application-Specific Counting
General
The counting modules have only two associated IODDTs. These IODDTs are
predefined by the manufacturer and contains language objects for inputs/outputs
belonging to the channel of an application-specific module.
The IODDT associated with the counting modules are of T_ Unsigned_CPT_BMX
and T_Signed_CPT_BMX types.
NOTE: IODDT variables can be created in two different ways:
z
z
Using the I/O objects (see Unity Pro, Operating Modes) tab.
Using the Data Editor (see Unity Pro, Operating Modes).
Language Object Types
Each IODDT contains a set of language objects allowing its operation to be
controlled and checked.
There are two types of language objects:
z
z
Implicit Exchange Objects: these objects are automatically exchanged on each
cycle revolution of the task associated with the module.
Explicit Exchange Objects: these objects are exchanged on the application’s
request, using explicit exchange instructions.
Implicit exchanges concern the inputs/outputs of the module (measurement results,
information and commands). These exchanges enable the debugging of the
counting modules.
Explicit exchanges enable the module to be set and diagnosed.
35013355 07/2012
171