
IEC61131 User and Reference Manual
April 22, 2008
hart33
Send HART command 33
Description
The hart33 function block sends a HART protocol command 33 (“read specified transmitter
variables”) to a HART device and processes the response.
Arguments
Set to TRUE to send one HART command. Enable
must then be set to FALSE and back to TRUE to send
another command. Each command is complete when
either the done or error output is TRUE.
The module address of the HART 5904 modem
module. Valid values are 0 to 3.
This must correspond with the module number of a
hart5904 Hart Modem I/O hardware.
The address of the HART device. Valid values are 0 to
15.
Transmitter variable code 0.
The variable code specifies which variable is read from
the HART device. See the documentation for your
HART device for valid values.
Transmitter variable code 1.
The variable code specifies which variable is read from
the HART device. See the documentation for your
HART device for valid values.
Transmitter variable code 2.
The variable code specifies which variable is read from
the HART device. See the documentation for your
HART device for valid values.
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