Siemens SIMATIC ET 200SP Manual page 43

When HART mode is enabled, the module cyclically reads the variables provided by the
connected field devices itself.
Configuration of multiHART ranges
You can use one or 4 multiHART ranges with the module. Select whether or not to use
multiHART ranges in the properties dialog of the I/O module.
When HART mode is enabled, the I/O module cyclically reads the variables provided by the
connected field devices itself. You can request and read one of these HART variables over a
multiHART range.
Quality code
The quality code describes the process status of the corresponding HART variables.
Basic structure of the quality code
Bit
The quality codes generated by the I/O module depend on the HART revision of the field device
used.
For field devices with HART revision 5
The quality code is formed exclusively from the 1st and 2nd status byte (HART device status)
of the response frames (HART command 3).
Quality code
80
H
78
H
84
H
Input/output module AI-DI 16/DQ16x24VDC HART HA (6DL1133-6EW00-0PH1)
Manual, 05/2017, A5E39294170-AA
7...6 5...2
Quality Sub-status
0 0: Bad Coded according to "PROFIBUS PA Pro‐
0 1: Uncertain file for Process Control Devices"
1 0: Good
1 1: Good
Meaning (process status)
Value is okay
Value is uncertain
Response code RC8: Update error
6.3 HART variables
1...0
Limits
0 0: OK
0 1: Low limit
1 0: High limit
1 1: Constant
Also applies when the following bits are set
in the 2nd status byte of the HART response
frame:
● Configuration changed
● Startup (cold start)
● Fixed analog output current setting
Also applies when the following bits are set
in the 2nd status byte of the HART response
frame:
● Additional status information available
● Analog output current saturated
● Secondary variable outside the limits
● Primary variable outside the range
HART function
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