Map
CIP
 Consumer Variables

Each AADvance controller supports 128 mapped consumer variables and a maximum of 255
CIP™
variables. The maximum size of a
CIP
 variable is 500 bytes. A variable is configured either as a producer or as a consumer; a variable cannot be both. Only global variables are available for use with controllers supporting a connection to a
CIP
 Network. Only BOOL, DINT, INT, LINT, LREAL, REAL, and SINT data types can be used with
CIP
; library data types are unsupported.
TIP: When adding a consumer variable, define the Remote Tag Name and Requested Packet Interval
(RPI) properties.
The
Communication
property page displays these properties for
CIP
 consumer variables:
Property
Description
Name
Name of the variable. For
CIP
 consumers, variable names are limited to 40 characters.
Remote Tag Name
The name of the remote
CIP
 producer, which is a specific identifier for
CIP
, is exposed on the
CIP
 protocol via the Remote Tag Name of the producer.
To allow data exchange, the Remote Tag Name of the
CIP
 consumer must match the Remote Tag Name of the producer.
RPI
Requested Packet Interval. The frequency in milliseconds that the remote controller offers the variable to the AADvance controller. Possible values range from 1 to 1000 ms. The default value is 20 ms.
The RPI should be set to a minimum of 200 ms.
Data Type
Data type of the global variable.
BOOL, DINT, INT, LINT, LREAL, REAL, and SINT data types are supported as long as the data type is of size 4 bytes (32 bits) or larger. Array or structure variables are also supported, but not member elements of arrays or structures. To transfer data types smaller than four bytes, create a user-defined data type and pad it accordingly.
When the variable is a structure containing members of supported data types, each member starts on a new byte or word depending on the size. For example, a DINT starts a new 4-byte word even though the last word only had a one-bit BOOL.
To map
CIP
 consumer variables
  1. In the
    Communication View
    , expand the required
    CIP™
    consume link, and then double-click
    CIP Consume
    .
    The
    Communication
    property page displays.
  2. In the property page, map a consumer variable by clicking
    Add Variable
     to access the
    Variable Selector
    .
  3. In the
    Variable Selector
    , select the required variable, and then click
    OK
    .
  4. In the property page, define the
    Remote Tag Name
     and
    RPI
    for the consumer variable.
    The consumer variable is added to the
    CIP Consume
     list of variables.
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