Allen-Bradley ControlLogix System 1756-L1 User Manual page 375

Read integers from a PLC-5 controller
EXAMPLE
When serial_port[1].3 turns on, reads 16-bit integer values (INTs) and stores them in
int_buffer. Then the FAL instruction moves the values to dint_array. This converts the
values to 32-bit integers (DINTs), for use by other instructions in the ControlLogix
controller.
serial_port[1].3 message.EN
message.DN
Write integers to a PLC-5 controller
EXAMPLE
When serial_port[1].3 turns on, moves the values in dint_array to int_buffer. This
converts the values to 16-bit integers (INTs). Then the message instruction sends
int_buffer to the other controller.
serial_port[1].3
fal_control.DN message.EN
Allen-Bradley HMIs
The following examples show how to use a buffer of INTs
/
fal_control
RES
fal_control
RES
/
Where:
dint_array
int_buffer
Configure Dial-Up Communications
MSG
Type - Unconfigured
Message Control
FAL
File Arith/Logical
Control
Length
Position
Mode
Dest dint_array[fal_control.pos]
Expression int_buffer[fal_control.pos]
FAL
File Arith/Logical
Control
Length
Position
Mode
Dest int_buffer[fal_control.pos]
Expression dint_array[fal_control.pos]
MSG
Type - Unconfigured
Message Control
Is an:
array of DINTs that are used in the ControlLogix controller
array of INTs with the same number of elements as
dint_array
Publication 1756-UM001E-EN-P - August 2002
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message ... DN
ER
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fal_control
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0
all ER
EN
fal_control
? DN
0
all ER
EN
message ... DN
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