Siemens HydroRanger 200 HMI, Operating Instructions Manual

Page: 156 / 404

Operating
7.13 Configuration testing
HydroRanger 200 HMI
154
Operating Instructions, 06/2018, A5E36281317-AC
mA Input
Use Scaled mA Input Value (2.6.5.) (Page 185) to test the mA input value against a true
level. Use a trusted external mA source to generate the signal required for testing, and verify
the incoming signal with Raw mA Input Value (2.6.6.) (Page 185). Check that the system
responds as expected when the mA level is changed.
mA Output
Use an external device to test the mA output against the measured level. Check that the mA
value changes to reflect the changes in the measured level.
7.13.2 Application test
If you are testing the application by varying the material level, make sure that none of the
control devices are connected (or that at least no power is available to them).
While the level is being cycled, check the results of the discrete inputs either by closing the
circuit externally (preferred) or by using Discrete Input (12.9.2.1.) (Page 209) or Discrete
Input 2 (2.9.2.2.) (Page 209) to force the input ON or OFF. Try all possible combinations to
thoroughly test the setup. For each combination, run a complete cycle to verify that the
relays operate as expected.
Monitor system performance carefully, under all anticipated operating conditions.
1.
When the device performs exactly as required, programming is complete.
2. If alternate reading units, fail-safe action, or relay operation is desired, update the
parameters for the new functionality.
3. If the system performance experiences problems, see Diagnosing and troubleshooting
(Page 281).
Retest the system every time you adjust any control parameters.