US 9,811,409 B2
Method for maintaining the functional ability of a field device
Markus Kilian, Merzhausen (DE); Andrea Seger, Zell (DE); Bert Von Stein, Zell (DE); and Christian Wandrei, Weil am Rhein (DE)
Assigned to Endress + Hauser GmbH + Co. KG, Maulburg (DE)
Appl. No. 14/416,081
Filed by Endress + Hauser GmbH + Co. KG, Maulburg (DE)
PCT Filed Jun. 27, 2013, PCT No. PCT/EP2013/063566
§ 371(c)(1), (2) Date Jan. 21, 2015,
PCT Pub. No. WO2014/016076, PCT Pub. Date Jan. 30, 2014.
Claims priority of application No. 10 2012 106 774 (DE), filed on Jul. 25, 2012.
Prior Publication US 2015/0149811 A1, May 28, 2015
Int. Cl. G06F 11/00 (2006.01); G06F 11/07 (2006.01); G05B 19/042 (2006.01); G05B 19/418 (2006.01); G05B 23/02 (2006.01)
CPC G06F 11/0793 (2013.01) [G05B 19/0426 (2013.01); G05B 19/4183 (2013.01); G05B 23/0229 (2013.01); G05B 23/0264 (2013.01); Y02P 90/10 (2015.11)] 5 Claims
OG exemplary drawing
 
1. A method for maintaining the functional ability of a field device of automation technology, comprising the steps of:
monitoring the field device for at least one achieved parameter change (Δnx); wherein the parameter change (Δnx) converts an old parameter set (nx31 1) into a new parameter set (nx);
storing all parameter changes (Δnx) achieved in the field device in a parameter change history (PH);
monitoring the field device for an occurring malfunction (F); and
performing a remediation measure (RM), wherein the parameter change history (PH) and/or a parameter to malfunction, linking element (LE) is accessed for remediating the malfunction occurring in the field device (F), wherein:
at least one of the following alternative method steps is executed for performing said remediation measure (RM);
revoking the parameter change (Δn′x) last performed before the occurring malfunction (F), wherein the last performed parameter change (Δn′x) is ascertained by means of the parameter change history (PH);
revoking at least one operator selected parameter change (Δn″x), wherein available to an operator (O) for selection are all parameter changes (Δn″x) performed in the field device and stored in the parameter change history (PH) and in the case of ΔΔTA selection by the operator (O) the field device revokes such operator selected, parameter change (Δn″x); and
revoking at least one automatically ascertained parameter change (Δn′″x), wherein for ascertaining the at least one automatically ascertained parameter change (Δ′″x) the parameter to malfunction, linking element (LE) is accessed and wherein offered to the operator (O) for selection is this at least one automatically ascertained parameter change (Δn′″x) and in the case of selection by the operator (O) the field device revokes such at least one automatically ascertained parameter change (Δn′″x).