Allen-Bradley controllogix 1756-L63, User Manual

Page: 336 / 435

Publication 1756-UM001E-EN-P - August 2002
20-20 Communicate Over a Remote I/O Network
2. Right-click each undefined tag, select New “name” , and assign
the following properties:
3. Configure the message:
Name: Description: Data Type: Scope:
BTR block transfer message that reads data from
each BT module MESSAGE
name_of_controller
(controller)
BTR_cfg array of configuration properties for each BT
module BT_CONFIGURATION
[
number
]
name_of_controller
(controller)
BTR_index controls which BT module that the MSG
instruction reads DINT
name_of_controller
(controller)
Where: Is the:
number
number of modules that this message reads
On this tab: For this item: Type or select:
Configuration Message Type Block Transfer Read
Number Of Elements 1 (The dialog box requires an initial value.)
Destination Tag
BTR_int_buffer_read
To create this tag:
A. Click New Tag .
B. Type the name.
C. In the Data type box, type INT[
length
], where
length
equals the
length
variable of the BT_input tag from
page 20-18.
D. Choose OK .
Communication Path Path to the 1756-DHRIO module:
A. Click Browse…
B. Select the RIO-MODULE with which you want to communicate.
C. Choose
OK .
This complete the Module Address properties. Although your logic will
change the path and module address, the Message Properties dialog
box requires an initial set of properties.
RIO or ControlNet RIO
Cache Connection check box Clear the Cache Connection check box..