Allen-Bradley ControlLogix System 1756-L1 User Manual page 336

20-20 Communicate Over a Remote I/O Network
Name: Description:
BTR block transfer message that reads data from
each BT module
BTR_cfg array of configuration properties for each BT
module
BTR_index controls which BT module that the MSG
instruction reads
On this tab: For this item:
Configuration Message Type
Number Of Elements
Destination Tag
Communication Path
RIO or ControlNet
Cache Connection check box
Publication 1756-UM001E-EN-P - August 2002
2. Right-click each undefined tag, select New "name", and assign
the following properties:
Data Type:
MESSAGE
BT_CONFIGURATION
[number ]
DINT
Where:
number
3. Configure the message:
Type or select:
Block Transfer Read
1 (The dialog box requires an initial value.)
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.
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
Clear the Cache Connection check box..
Scope:
name_of_controller
(controller)
name_of_controller
(controller)
name_of_controller
(controller)
Is the:
number of modules that this message reads