WAGO 750-464 Manual

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WAGO 750-464 Manual Manual pdf 76 page image

76 Process Image WAGO-I/O-SYSTEM 750750-464 2/4 AI RTD configurableManualVersion 1.0.17.3.4 Pt1000 (acc. IEC 751)With the setting "Pt1000 (acc. IEC 751)", the I/O module converts the resistancemeasured values of Pt1000 sensors (acc. IEC 751) and outputs them astemperature values.The temperature values are displayed at a resolution of 1 digit per 0.1 °C in oneword (16-bit). Temperature values below 0 °C are represented in two'scomplement binary. As a result, 0 °C corresponds to the numeric value 0x0000and 100 °C to the numeric value 0x03E8 (dec. 1000).The possible numeric range corresponds to the defined temperature range of-200 °C to +850 °C for Pt1000 sensors (acc. IEC 751).Table 62: Process image for 750-464, Pt1000 setting (acc. IEC 751)Temperature°CResistanceΩNumeric value 1) Statusbytehex.LEDerrorAI 1, 2Binary Hex. Dec.--- < 9.00 '1111.1000.0011.0000' 0xF830 -2000 0x51 onShort circuit 2)< -200.0 < 185.20 '1111.1000.0011.0000' 0xF830 -2000 0x41 onUnderrange 3)-200.0 185.20 '1111.1000.0011.0000' 0xF830 -2000 0x00 off-100.0 602.56 '1111.1100.0001.1000' 0xFC18 -1000 0x00 off0.0 1000.00 '0000.0000.0000.0000' 0x0000 0 0x00 off100.0 1385.06 '0000.0011.1110.1000' 0x03E8 1000 0x00 off200.0 1758.56 '0000.0111.1101.0000' 0x07D0 2000 0x00 off500.0 2809.78 '0001.0011.1000.1000' 0x1388 5000 0x00 off750.0 3606.38 '0001.1101.0100.1100' 0x1D4C 7500 0x00 off800.0 3757.04 '0001.1111.0100.0000' 0x1F40 8000 0x00 off850.0 3904.81 '0010.0001.0011.0100' 0x2134 8500 0x00 off> 850.0 > 3904.81 '0010.0001.0011.0100' 0x2134 8500 0x42 onOverrange 3)--- > 5500.00 '0010.0001.0011.0100' 0x2134 8500 0x62 onWire break 2)1) Temperature values below 0 °C are represented in two's complement binary.2) When short circuit and wire break monitoring is ON (see section "Behavior in the Event of anError")3) When underrange / overrange limit is ON (see section "Behavior in the Event of an Error")