Siemens sitrans LU01 - Manual (Page 103)

7ML19985BE02 SITRANS LU01 – INSTRUCTION MANUAL Page 97
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MT-03 Point Not Scanned
Field Name Definition
Start Of Message STX ($02)
Message Type
2 characters, 03 (indicates the Point Number is not in service)
Point # 3 characters, 001 to 003 (e.g. Point Number 1)
End Of Message CR ($0D)
start of message
message type end of message
point #