Übersicht implementierte RTD Transformationen

Einige Beckhoff IO Geräte (IP20 Klemmen, Steckmodule, Box‑Module) unterstützen die Auswertung von Widerstandssensoren zur Temperaturmessung (RTD) wie Pt100, Pt1000, NTC1K etc.

Im Folgenden sind die dort teilweise je nach Gerät implementierten Kennlinien aufgeführt. Die angegebenen Tabellenwerte sind die Grundlage für die Auswertung im Gerät.

Pt, Ni, KTY: die Tabellenwerte sind entsprechend im Gerät hinterlegt, Zwischenwerte werden interpoliert. Bei KL-Klemmen wird die Temperatur davon abweichend über ein Näherungspolynom berechnet.
NTC: die Tabellenwerte wurden zur Ermittlung der Steinhart-Hart-Koeffizienten genutzt und über diese Koeffizienten ermittelt die Firmware die Temperatur.

Stand 12/2020

Pt-RTD

Werte in Ω	Pt100	Pt1000	Pt500	Pt200
[°C] (ITS-90)	-200…+850°C	-200…+850°C	-200…+850°C	-200…+850°C
-200	18,520	185,200	92,600	37,040
-190	22,825	228,250	114,125	45,650
-180	27,096	270,960	135,480	54,192
-170	31,335	313,350	156,675	62,670
-160	35,543	355,430	177,715	71,086
-150	39,723	397,230	198,615	79,446
-140	43,876	438,760	219,380	87,752
-130	48,005	480,050	240,025	96,010
-120	52,110	521,100	260,550	104,220
-110	56,193	561,930	280,965	112,386
-100	60,256	602,560	301,280	120,512
-90	64,300	643,000	321,500	128,600
-80	68,325	683,250	341,625	136,650
-70	72,335	723,350	361,675	144,670
-60	76,328	763,280	381,640	152,656
-50	80,306	803,060	401,530	160,612
-40	84,271	842,710	421,355	168,542
-30	88,222	882,220	441,110	176,444
-20	92,160	921,600	460,800	184,320
-10	96,086	960,860	480,430	192,172
0	100,000	1.000,000	500,000	200,000
10	103,903	1.039,030	519,515	207,806
20	107,794	1.077,940	538,970	215,588
30	111,673	1.116,730	558,365	223,346
40	115,541	1.155,410	577,705	231,082
50	119,397	1.193,970	596,985	238,794
60	123,242	1.232,420	616,210	246,484
70	127,075	1.270,750	635,375	254,150
80	130,897	1.308,970	654,485	261,794
90	134,707	1.347,070	673,535	269,414
100	138,506	1.385,060	692,530	277,012
110	142,293	1.422,930	711,465	284,586
120	146,068	1.460,680	730,340	292,136
130	149,832	1.498,320	749,160	299,664
140	153,584	1.535,840	767,920	307,168
150	157,325	1.573,250	786,625	314,650
160	161,054	1.610,540	805,270	322,108
170	164,772	1.647,720	823,860	329,544
180	168,478	1.684,780	842,390	336,956
190	172,173	1.721,730	860,865	344,346
200	175,856	1.758,560	879,280	351,712
210	179,528	1.795,280	897,640	359,056
220	183,188	1.831,880	915,940	366,376
230	186,836	1.868,360	934,180	373,672
240	190,473	1.904,730	952,365	380,946
250	194,098	1.940,980	970,490	388,196
260	197,712	1.977,120	988,560	395,424
270	201,314	2.013,140	1.006,570	402,628
280	204,905	2.049,050	1.024,525	409,810
290	208,484	2.084,840	1.042,420	416,968
300	212,052	2.120,520	1.060,260	424,104

Pt-RTD (Fortsetzung)

Werte in Ω	Pt100	Pt1000	Pt500	Pt200
[°C] (ITS-90)	-200…+850°C	-200…+850°C	-200…+850°C	-200…+850°C
310	215,608	2.156,080	1.078,040	431,216
320	219,152	2.191,520	1.095,760	438,304
330	222,685	2.226,850	1.113,425	445,370
340	226,206	2.262,060	1.131,030	452,412
350	229,716	2.297,160	1.148,580	459,432
360	233,214	2.332,140	1.166,070	466,428
370	236,701	2.367,010	1.183,505	473,402
380	240,176	2.401,760	1.200,880	480,352
390	243,640	2.436,400	1.218,200	487,280
400	247,092	2.470,920	1.235,460	494,184
410	250,533	2.505,330	1.252,665	501,066
420	253,962	2.539,620	1.269,810	507,924
430	257,379	2.573,790	1.286,895	514,758
440	260,785	2.607,850	1.303,925	521,570
450	264,179	2.641,790	1.320,895	528,358
460	267,562	2.675,620	1.337,810	535,124
470	270,933	2.709,330	1.354,665	541,866
480	274,293	2.742,930	1.371,465	548,586
490	277,641	2.776,410	1.388,205	555,282
500	280,978	2.809,780	1.404,890	561,956
510	284,303	2.843,030	1.421,515	568,606
520	287,616	2.876,160	1.438,080	575,232
530	290,918	2.909,180	1.454,590	581,836
540	294,208	2.942,080	1.471,040	588,416
550	297,487	2.974,870	1.487,435	594,974
560	300,754	3.007,540	1.503,770	601,508
570	304,010	3.040,100	1.520,050	608,020
580	307,254	3.072,540	1.536,270	614,508
590	310,487	3.104,870	1.552,435	620,974
600	313,708	3.137,080	1.568,540	627,416
610	316,918	3.169,180	1.584,590	633,836
620	320,116	3.201,160	1.600,580	640,232
630	323,302	3.233,020	1.616,510	646,604
640	326,477	3.264,770	1.632,385	652,954
650	329,640	3.296,400	1.648,200	659,280
660	332,792	3.327,920	1.663,960	665,584
670	335,932	3.359,320	1.679,660	671,864
680	339,061	3.390,610	1.695,305	678,122
690	342,178	3.421,780	1.710,890	684,356
700	345,284	3.452,840	1.726,420	690,568
710	348,378	3.483,780	1.741,890	696,756
720	351,460	3.514,600	1.757,300	702,920
730	354,531	3.545,310	1.772,655	709,062
740	357,590	3.575,900	1.787,950	715,180
750	360,638	3.606,380	1.803,190	721,276
760	363,674	3.636,740	1.818,370	727,348
770	366,699	3.666,990	1.833,495	733,398
780	369,712	3.697,120	1.848,560	739,424
790	372,714	3.727,140	1.863,570	745,428

Ni-RTD

Werte in Ω	Ni100	Ni120	Ni1000	Ni1000 TK5000
α nach DIN43760	typ. 6180 pmm/K	typ. 6720 pmm/K	typ. 6180 pmm/K	typ. 5000 pmm/K
[°C] (ITS-90)	-60..50°C	-60..320°C	-60..250°C	-30..160°C
-60	69,52	80,943	695,200
-50	74,255	87,011	742,550
-40	79,131	93,251	791,310
-30	84,146	99,667	841,460	871,690
-20	89,296	106,261	892,960	913,480
-10	94,582	113,038	945,820	956,240
0	100	120,000	1.000,000	1.000,000
10	105,552	127,151	1.055,520	1.044,790
20	111,236	134,494	1.112,360	1.090,650
30	117,056	142,033	1.170,560	1.137,620
40	123,011	149,772	1.230,110	1.185,710
50	129,105	157,712	1.291,050	1.234,950
60	135,34	165,859	1.353,400	1.285,450
70	141,721	174,214	1.417,210	1.337,150
80	148,25	182,783	1.482,500	1.390,120
90	154,934	191,567	1.549,340	1.444,390
100	161,779	200,572	1.617,790	1.500,000
110	168,789	209,798	1.687,890	1.556,980
120	175,972	219,251	1.759,720	1.615,370
130	183,335	228,934	1.833,350	1.675,190
140	190,887	238,850	1.908,870	1.736,470
150	198,635	249,002	1.986,350	1.799,270
160	206,589	259,394	2.065,890	1.863,600
170	214,758	270,029	2.147,580
180	223,153	280,911	2.231,530
190	231,783	292,042	2.317,830
200	240,66	303,427	2.406,600
210	249,795	315,069	2.497,950
220	259,2	326,971	2.592,000
230	268,887	339,136	2.688,870
240	278,868	351,569	2.788,680
250	289,156	364,271	2.891,560
260		377,247
270		390,501
280		404,035
290		417,853
300		431,958
310		446,354
320		461,044

KT/KTY-RTD

Werte in Ω	KT100..	KTY81/82-110…	KTY81-121	KTY81-122	KTY81-151	KTY81-152
[°C] (ITS-90)	-50..150°C	-50..150°C	-50..150°C	-50..150°C	-50..150°C	-50..150°C
-50	518	515	510	520	502	528
-40	570	567	562	573	553	582
-30	625	624	617	630	608	639
-20	685	684	677	690	667	701
-10	748	747	740	755	729	766
0	815	815	807	823	794	835
10	886	886	877	895	864	908
20	961	961	951	971	937	985
30	1.040	1.040	1.029	1.050	1.014	1.066
40	1.123	1.122	1.111	1.134	1.094	1.150
50	1.209	1.209	1.196	1.221	1.178	1.239
60	1.300	1.299	1.286	1.312	1.266	1.331
70	1.394	1.392	1.378	1.406	1.357	1.427
80	1.492	1.490	1.475	1.505	1.453	1.527
90	1.594	1.591	1.575	1.607	1.551	1.631
100	1.700	1.696	1.679	1.713	1.654	1.738
110	1.810	1.805	1.786	1.823	1.759	1.850
120	1.923	1.915	1.896	1.934	1.867	1.963
130	2.041	2.023	2.003	2.044	1.973	2.074
140	2.128	2.124	2.103	2.146	2.071	2.178
150	2.235	2.211	2.189	2.233	2.156	2.266

NTC-RTD

Werte in Ω	NTC 1k8	NTC 1k8	NTC 2k2	NTC 3k	NTC 5k	NTC 10k	NTC 10k	NTC 10k
R0	R0=4940	R0=5200	R0=7373	R0=9822	R0=16325	R0=27280	R0=29490	R0=29588
C1 ¹⁾	1,25835E-03	1,09447E-03	1,46042E-03	1,39183E-03	1,28772E-03	9,01568E-04	1,02381E-03	1,00996E-03
C2 ¹⁾	2,69483E-04	3,06398E-04	2,39847E-04	2,39480E-04	2,35694E-04	2,49334E-04	2,39960E-04	2,42461E-04
C3 ¹⁾	0	0	0	0	0	0	0	0
C4 ¹⁾	1,79850E-07	-8,80292E-08	9,14512E-08	8,72452E-08	9,52328E-08	1,99664E-07	1,53713E-07	1,41928E-07
[°C] (ITS-90)	-40..130°C	-30..150°C	-50..130°C	-30..80°C	-40..100°C	-40..110°C	-30..150°C	-50..130°C
-50			154.464	205.800	333.914	329.200	441.300	454.910
-40	35.480		77.081	102.690	167.835,5	188.400	239.800	245.089
-30	20.659	24.500	40.330	53.730	88.341,5	111.300	135.200	137.307
-20	12.443	14.000	22.032	29.346	48.487	67.740	78.910	79.729
-10	7.730	8.400	12.519	16.674	27.649	42.250	47.540	47.843
0	4.940	5.200	7.373	9.822	16.325,4	27.280	29.490	29.588
10	3.241	3.330	4.487	5.976	9.951,75	17.960	18.790	18.813
20	2.177	2.200	2.814	3.750	6.246,85	12.090	12.260	12.272
25	1.800	1.800	2.252	3.000	5.000	10.000	10.000	10.000
30	1.496	1.480	1.814	2.417	4.028	8.310	8.190	8.195
40	1.049	1.040	1.199	1.598	2.662,45	5.820	5.590	5.593
50	750	740	811,5	1.081	1.800,5	4.160	3.890	3.894
60	545	540	561	747	1.243,55	3.020	2.760	2.763
70	403	402	395,5	527	875,8	2.220	1.990	1.994
80	303	306	284	378	628,09	1.660	1.460	1.462
90	230	240	207,4		458,06	1.260	1.080	1.088
100	178	187	153,8		339,32	970	820	821
110	139	149	115,8		255,03	750	620	628
120	110	118	88,3		194,3		480	486
130	87	95	68,3		149,91		380	380
140	71	77			117,04		300
150		64			92,4		240

¹⁾ Koeffizient für die Steinhart-Hart-Gleichung

NTC-RTD (Fortsetzung)

Werte in Ω	NTC 10k	NTC 10k	NTC 10k	NTC 10K	NTC 20K	NTC 100k	NTC 100k
R0	R0=32639	R0=32650	R0=32660	R0=32770	R0=70200	R0=326600	R0=327240
C1 ¹⁾	1,13048E-03	1,12119E-03	1,12715E-03	1,11312E-03	1,15399E-03	6,09783E-04	9,04083E-04
C2 ¹⁾	2,33905E-04	2,35346E-04	2,34458E-04	2,36910E-04	2,12816E-04	2,29282E-04	1,53712E-04
C3 ¹⁾	0	0	0	0	0	0	6,30765E-06
C4 ¹⁾	8,86105E-08	8,34620E-08	8,63055E-08	7,53186E-08	9,51018E-08	6,84669E-08	-1,02569E-07
[°C] (ITS-90)	-40..130°C	-30..150°C	-50..130°C	-50..130°C	-20..150°C	-40..130°C	-30..270°C
-50		667.830	672.300	692.700	1.667.570
-40	333.562	335.670	337.200	344.700	813.440	3.366.000
-30	176.081	176.680	177.200	180.100	415.480	1.770.000	1.733.200
-20	96.807	96.970	97.130	98.320	221.300	971.200	959.050
-10	55.252	55.300	55.340	55.790	122.470	553.400	551.410
0	32.639	32.650	32.660	32.770	70.200	326.600	327.240
10	19.901	19.900	19.900	19.930	41.560	199.000	199.990
20	12.493	12.490	12.490	12.500	25.350	124.900	125.245
25	10.000	10.000	10.000	10.000	20.000	100.000	100.000
30	8.055	8.060	8.056	8.055	15.890	80.580	81.000
40	5.324	5.320	5.326	5.323	10.210	53.260	53.500
50	3.600	3.600	3.602	3.599	6.720	36.020	35.899
60	2.486	2.490	2.489	2.486	4.520	24.880	25.000
70	1.751	1.750	1.753	1.753	3.100	17.510	17.550
80	1.255	1.260	1.258	1.258	2.120	12.560	12.540
90	915	920	917	919	1.540	9.164	9.100
100	678	680	679	682	1.120	6.792	6.710
110	509	510	511	513	820	5.108	5.070
120	388	390	389	392	610	3.894	3.850
130	299	300	301	303	460	3.006	2.940
140		230			350		2.271
150		180			270		1.770
160							1.414
170							1.122
180							896
190							719
200							582
210							483
220							396
230							328
240							273,7
250							230
260							194,6
270							165,6
280							141,7
290							122
300							105,6

¹⁾ Koeffizient für die Steinhart-Hart-Gleichung