iTools Help Manual - Eurotherm Ltda

iTOOLS VERSION 6.20: HELP MANUAL10.1.3 ANALOGUE OPERATIONS (Cont.)HI LIMIT / LO LIMITAllows the user to specify a maximum output range.FALLBACKAllows the user to enter a value which the output will adopt if an error condition occurs in the calculation. Thisvalue must lie within the Hi and Lo limits, unless Fallback Overrides Limits is enabled (below).FALLBACK OVERRIDES LIMITSIf 'Fallback Overrides Limits' is enabled, then if the relevant parameter goes invalid for any reason, the fallbackvalue is adopted whether the fallback value be inside or outside the value's normal clipping limits. If 'FallbackOverrides Limits' is not enabled, the value will be 'clipped' as normal.ADD / REMOVEAllows the user to add (via a browse window) or delete wires from the calculation block output.FORCE GOOD STATUSThis tickbox appears only for some device types. This is used to force the status of the output to 'Good', even inerror conditions.COMMENTAllows a comment to be entered to be associated with this analogue operation.MATHS OPERATORSThe following mathematical operators are available for each analogue operation.HA028838 Page 39Issue 2 Jly 05