11 Operation using PROFIBUS
®
PA TMT84
76 Endress + Hauser
Submenus "Analog Input 1" to "Analog Input 4"
The standard parameters for the "Security settings" menu can be found on Page 60. The expert
parameters are listed in the following table.
Status of the Output value
The status of the Output value parameter group tells the downstream function blocks the status of
the Analog Input function block and the validity of the Output value.
Simulation of input/output
Various parameters of the Analog Input 1-4 menus allow simulation of the input and output of the
function block:
Simulating the input of the Analog Input function block:
The input value (measured value and status) can be specified by means of the "AI Simulation / AI
Simulation value / AI Simulation status" parameters. Since the simulation value runs through the
entire function block, all the parameter settings of the block can be checked.
Simulating the output of the Analog Input function block:
Set the operating mode to MAN with the Current mode parameter (Page 57) and directly
specify the desired output value in the Output value parameter (Page 76).
(only visible in
online mode)
Set Unit To Bus read/
write
Transfers configured system units to the automation
system.
During the transfer, the scaling of the OUT SCALE value
in the Analog Input Block is automatically overwritten
with the configured PV SCALE and the unit from the
Transducer Block is copied over the "Out Scale - Unit"
(output unit).
Options:
•0 - OFF
•1 - ON
Factory settings:
0 - OFF
" Caution!
Activating this parameter can result in an erratic change of
the output value "Out value" and thus affect subsequent
control loops.
Status of the OUT output value: Meaning of the output value:
GOOD NON CASCADE
OUT is valid and can be used for further processing.
UNCERTAIN
OUT can only be used for further processing to a limited extent.
BAD
OUT is not valid.
! Note!
The BAD status value occurs when the Analog Input function block is switched to OOS (out-of-service) or in the event of
serious errors (see status code and system/process error messages, chapter 9.3).
Communication
Menu item Parameter
"Communication" Name
Parame-
ter access
Description
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