||Notes on wiring the PT100 and the SM 331 are available in Entry ID 22723668.|
||Open the HW Config and add the analog input module to the remote ET 200M station.
||Make the following settings in the Properties of the module if required.
You can enable "Hardware Interrupt when Limit Value Exceeded" to trigger an alarm when the upper or lower temperature limit is exceeded.
You must specify the limit values under "Trigger for Hardware Interrupt".
PCS 7 does not support "Hardware Interrupts" by default.
||Save and compile the HW Config and load it into the PLC.|
||Incorporate the CH_AI driver block into the CFC chart and parameterize it. Details on parameterizing are available in the block's Online Help. Refer in particular to the connectors VHRANGE, VLRANGE and MODE. You should insert another MEAS_MON block in the CFC chart for monitoring and controlling the signal from the PT100. The input of MEAS_MON must then be connected to the output of CH_AI. In this way, the signal is displayed in WinCC and evaluated |
||Update the diagnostics screens. Switch to the plant view in the SIMATIC Manager via View > Plant View. Select the project and right-click to open the pop-up menu. Select "Plant Hierarchy > Create/Update Diagnostics Screens" and update the diagnostics screens.|
Transfer and load the chart into the CPU.
Compile and load the OS.