Invalid PV Span

What does PVSpanInv (Status1.4) mean?

This fault indicates an invalid span configuration for the Process Variable (PV), specifically when PVEUMax is less than or equal to PVEUMin. In the PPID instruction, the equivalent Sts_ErrPVEU is set when Cfg_PVEUMin is greater than Cfg_PVEUMax, or if Cfg_PVEUMin or Cfg_PVEUMax is configured as Infinite (Inf), Negative Infinite (-Inf), or Not-a-Number (NaN).

• PVEUMax parameter configured to be less than or equal to PVEUMin (PIDE)
• Cfg_PVEUMin parameter configured to be greater than Cfg_PVEUMax (PPID)
• Cfg_PVEUMin or Cfg_PVEUMax parameter set to Inf, -Inf, or NaN (PPID)

Click steps to track your progress.

1. 1

   Access the PIDE or PPID instruction configuration within the programming software

2. 2

   Verify PVEUMax (PIDE) or Cfg_PVEUMax (PPID) is numerically greater than PVEUMin (PIDE) or Cfg_PVEUMin (PPID)

3. 3

   Ensure Cfg_PVEUMin and Cfg_PVEUMax (PPID) are valid numerical values and not Inf, -Inf, or NaN

4. 4

   Adjust the PV scaling limits to a valid range, e.g., Cfg_PVEUMin = 0.0 and Cfg_PVEUMax = 100.0