INFICON T-Guard Leak Detection Sensor Interface description - Manual (Page 32)

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RS232 Binary Interface Protocol
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4.3 Error Messages Binary Mode
No. Name Explanation
231 RS232disabled Control location is not RS232
232 RS232Invalid Command currently not allowed
(i.e. CAL when running up)
234 RS232PW2disable Password disabled (for INFICON service only)
235 RS232CmdFailed Execution of command failed
240 RS232Cmd Command does not exist
243 RS232Len Number or length of parameter wrong
244 RS232Para Parameter not in valid range
252 RS232Start First byte was not 0x05
253 RS232Checksum Transmitted and calculated checksum differ
254 RS232Timeout Time out (Command transmission did not finish within
500 ms)
255 RS232Buffer Overflow in command receive buffer