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Download Siemens ET 77..UC Operating instructions
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Commissioning and Diagnostics 6.8 Diagnostics with STEP 7 Error type 10011B 10101B 19D 21D Error text Meaning HART communication error (HART diagnostics) Reference channel error HARD field device is not responding Timing error Remedy Check the process wiring Correction of the configuration internal reference junction: TC sensor module defective or not available. external reference junction (RTD): Parameters do not point to the RTD module Exchanging or connecting the TC Sensor Module Correction of the configuration 10110B 22D HART other statuses available (HART warning) --- --- 10111B 23D reserved for HART (HART warning) --- --- 11000B 24D Actuator disconnection Intrinsically safe switch signal switched on at 4 DO --- 11010B 26D External fault Encoder error Encoder supply faulty Changeover contact error Actuator error HART field device error 11011B 27D HART configuration modified (HART warning) --- --- 11101B 29D HART primary variable outside the limits (HART diagnostics) --- --- 11110B 30D HART auxiliary variable --outside the limits (HART diagnostics) --- Replacement of encoder/actuator/HART field device Correction of the process wiring Note Control response A control response is implemented for assigning parameters in the electronic modules of the ET 200iSP. If the electronic module receives a faulty parameter, this is rejected. The electronic then continues to operate with its already valid parameters (the default parameters from the initial parameter assignment). No "parameter error" diagnostic messsage is output. The update interrupt function can be used to check the changed parameters of the electronic module. Refer to chapter "Interrupts (Page 171) ". No update interrupt is generated in the case of faulty parameters. ET 200iSP Operating Instructions, 01/2010, A5E00247483-04 169
