Proline Promass 83E/F/O Modbus RS485 Operating Instructions

TroubleshootingModbus No. Device status message(local display)Register:6859Data type:IntegerRegister:6821Data type:String (18 byte)No. # 3xx System limits exceeded131 to 134 STACK CUR. OUTn135 to 138 STACK FREQ.OUT n339to342343to346139 to 142 STACK PULSE n 347to35039 to 42 RANGE CUR. OUTn43 to 46 RANGE FREQ.OUT n351to354355to35847 to 50 RANGE PULSE n 359to362S: STACK CUR OUT n$: # 339 to 342S: STACK FREQ. OUT n$: # 343 to 346S: STACK PULSE OUT n$: # 347 to 350S: CURRENT RANGE n!: # 351 to 354S: FREQ. RANGE n!: # 355 to 358S: PULSE RANGE!: # 359 to 362äProline Promass 83 Modbus RS485Cause Remedy (spare part ä 101)The temporarily buffered flow 1. Change the upper or lower limit setting, asportions (measuring mode forapplicable.pulsating flow) could not be cleared2. Increase or reduce flow, as applicable.or output within 60 seconds.Recommendation:– Configure the fault response of the output to"ACTUAL VALUE", so that the temporarybuffer can be cleared.– Clear the temporary buffer by the measuresdescribed under Item 1.The temporarily buffered flow 1. Increase the setting for pulse weighting.portions (measuring mode for2. Increase the max. pulse frequency, if thepulsating flow) could not be clearedtotalizer can handle a higher number ofor output within 60 seconds.pulses.3. Increase or reduce flow, as applicable.Recommendation:– Configure the fault response of the output to"ACTUAL VALUE", so that the temporarybuffer can be cleared.– Clear the temporary buffer by the measuresdescribed under Item 1.Current output:1. Change the upper or lower limit setting, asThe actual value for the flow lies applicable.outside the set limits.2. Increase or reduce flow, as applicable.Frequency output:1. Change the upper or lower limit setting, asThe actual value for the flow lies applicable.outside the set limits.2. Increase or reduce flow, as applicable.Pulse output:1. Increase the setting for pulse weighting.Pulse output frequency is out of2. When selecting the pulse width, choose arange.value that can still be processed by aconnected counter (e.g. mechanicalcounter, PLC, etc.).Determine the pulse width:– Version 1: Enter the minimum durationthat a pulse must be present at theconnected counter to ensure itsregistration.– Version 2: Enter the maximum (pulse)frequency as the half "reciprocal value"that a pulse must be present at theconnected counter to ensure itsregistration.Example: The maximum input frequency ofthe connected counter is 10 Hz.The pulse width to be entered is:12 . 10 Hz = 50 msa0004437Page 92 • MN0M030Issue/Rev. 0.2 (12/12)