1766-RM001A-EN-P MicroLogix 1400 Programmable Controllers ...

336 Process Control InstructionOutput Limit (OL)Output ParameterDescriptionsAddressDataFormatOL - Output Limit PD10:0/OL binary 1 = enabled0 = disabledRange Type User ProgramAccesscontrolread/writeAn enabled (1) value enables output limiting to the values defined inPD10:0.CVH (Control Variable High) and PD10.0.CVL (Control VariableLow).A disabled (0) value disables OL (Output Limiting).Control Variable High Limit (CVH)Output ParameterDescriptionsCVH - ControlVariable High LimitAddress Data Format Range Type User ProgramAccessPD10:0.CVH word (INT) 0…100% control read/writeWhen the output limit bit (PD10:0/OL) is enabled (1), the CVH (ControlValue High) you enter is the maximum output (in percent) that thecontrol variable attains. If the calculated CV exceeds the CVH, the CV isset (overridden) to the CVH value you entered and the upper limit alarmbit (UL) is set.When the output limit bit (PD10:0/OL) is disabled (0), the CVH value youenter determines when the upper limit alarm bit (UL) is set.If CV exceeds the maximum value, the output is not overridden and theupper limit alarm bit (UL) is set.Publication 1766-RM001A-EN-P - October 2008