Endress+Hauser Smartec S CLD132, Руководство по эксплуатации

Страница: 16 / 44

System integration Smartec S CLD132/134 PROFIBUS-PA/-DP
16 Hauser
OUT status
The status of the Analog Input function block and the validity of the OUT output value are
relayed to the downstream function blocks by means of the status of the OUT parameter
group. The following status values can be displayed:
• GOOD_NON_CASCADE
The OUT output value is valid and can be used for further processing.
• UNCERTAIN
The OUT output value can only be used for further processing to a limited extent.
• BAD
The OUT output value is invalid. Occurs when the Analog Input function block is switched
to the O/S operating mode (Out of Service) or in the event of a serious error (see status
codes and system or process-specific error messages in the Operating Instructions
BA207C/07/en or BA401C/07/en).
In addition to the device-internal error messages, other device functions have an influence
on the status of the OUT value:
• Automatic hold
If "Hold" is switched on, the Out Status is set to BAD not specific (0x00).
• Calibration
During calibration, the OUT Status is set to the UNCERTAIN sensor calibration value
(0x64) (even when hold is switched on).
Simulation of input/output
You can simulate the input and output of the function block by means of various parameters
of the Analog Input function block:
1. Simulating the input of the Analog Input function block:
The SIMULATION parameter group can be used to specify the input value (measured
value and status). Since the simulation value runs through the entire function block, you
can check all the parameter settings of the block.
2. Simulating the output of the Analog Input function block:
Set the operating mode in the MODE_BLK parameter group to MAN and directly specify
the desired output value in the OUT parameter.
Measured value simulation in local operation
In the case of measured value simulation in local operation, the status UNCERTAIN –
simulated value is relayed to the function blocks. This triggers the failsafe mechanism in the
AI blocks.
Error response (FSAFE_TYPE)
If an input or simulation value has the status BAD, the Analog Input function block uses the
error response defined in the FSAFE_TYPE parameter. The FSAFE_TYPE parameter offers
the following error response options:
• FSAFE_VALUE
The value specified in the FSAFE_VALUE parameter is used for further processing.
• LAST_GOOD_VALUE
The last good value is used for further processing.
• WRONG_VALUE
The current value is used for further processing, despite the BAD status.The default is the
setting (FSAFE_VALUE) with value “0”.
Error response is also activated if the Analog Input function block is set to the “OUT OF
SERVICE” operating mode.