Installation & Configuration Guide WI-I/O-9-U2-TC - Thermocouple Adapter for WI-I/O-9-U2 Configuration Dip Switches On the “I/O Configuration” web page select: · · · · Select Thermocouple type from the drop down list. Options are Type T, Type J, Type K. Select the Polarity from the drop down list (Normal or Reversed) Set Thermocouple Error Value to a value the integer registers (30003 and/or 30004) will go to during fail * Press “Save and Activate Changes” button. * * Error Value is set in register 30003 when the thermocouple is open circuit. Error Value is set in register 30003 and 30004 when the thermocouple adaptor is not fitted RF Thermocouple Range @ Tamb (+10- +40) Thermocouple Range @ Tamb (-40- +60) Type Normal Reverse PWR Type Normal Reverse - 25°C to + 365°C - 200°C to + 70°C Type T 0°C to + 330°C - 200°C to + 5°C Type K - 25°C to + 455°C - 200°C to + 70°C Type K 0°C to + 410°C - 200°C to + 5°C Type J - 10°C to + 345°C - 210°C to + 60°C Type J 15°C to + 300°C - 210°C to + 10°C 485 D1 Type T 232 D2 Caution: D5 D7 · · · For normal Polarity setting Zero and Span to 0 and 100 respectively will scale the register to read the temperature as an integer value, e.g. 148.25 °C will read 14825 or 26.51 °C will read 2651 For normal Polarity, setting Zero and Span to 15019 and 682.6667 respectively will scale the register so that a temperature of -10 to 50°C will give a scaled range of 8192 to 49152 For Reverse Polarity, setting Zero and Span to 30948 and 455.106 respectively will scale the register so that a temperature of -50 to 40°C will give a scaled range of 8192 to 49152 Revision 1.6 - Oct 2011 -Ve +Ve If ‘Thermocouple Polarity’ selection is reversed Thermocouple wires must be swapped, e.g. (red) to TC+ & (blue) to TC- N/C N/C COM (+24V) TC- Constantan (red) TC+ Copper (blue) Normal Type “T” Thermocouple ON Analog Input Scale Examples 5 6 Thermocouple Adapter 3 4 38005 = 32 bit Floating Point temperature value 38007 = 32 bit Floating Point Cold Junction value 30003 = Scaled 16 bit Analog value 30004 = Scaled 16 bit Cold Junction value AI 1 AI 1 AI2 AI2 AO1 AO2 + - AI3 AI4 + D8 GND +24V + + GND +24V Thermocouple input terminals must be within +/- 5V of the WI-I/O-9-U2 ‘GND’ terminal 1 2 ESD Sensitive pins. Use ESD handling precautions. D6 Address locations D4 The WI-I/O-9-U2-TC adaptor board plugs into the bottom 6 terminals on the WI-I/O-9-U2 terminal strip. A separate 14 way terminal strip is provided to allow connection to the remaining terminals. Connections D3 Installation All Dip Switches must be set to the OFF position. WI-I/O 9-U2 6720005011 Inst_WI-I/O-9-U2 _TC_Adaptor_V1.6.vsd