Siemens sitrans LU10 - Page 98

Page 94 SITRANS LU10 – INSTRUCTION MANUAL 7ML19985AN02
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Technical Reference
Status A 1 character, $0 to $F (convert to binary, e.g. temp, echo, and cable OK, not
priority)
Status B 1 character, $0 to $F (convert to binary, e.g. scan point is in high alarm)
Status C 1 character, $0 to $F (convert to binary, e.g. scan point is not in rate or
band alarm)
Temp 2 characters, $32 to $FA (convert to decimal and subtract 100, e.g.
temperature = 20 °C)
Percent 5 characters, 00.00 to 9999. (e.g. current level = 85.00% of span, EEEE. =
field overflow)
CR $0D (End Of Message)
Field Name Definition
STX $02 (Start Of Message)
Message Type
2 characters, 00 (indicates the following data pertains to a scan point
measurement)
Point # 3 characters, 001 to 010 (e.g. the message pertains to Point Number 1)
Reading
5 characters, 0.000 to 9999. (e.g. reading = 678.9, DDDD. = no data,
EEEE. = overflow)
####
1 = temp alarm
1 = loss of echo (f.s. expired)
1 = transducer cable fault
1 = priority point
MSB LSB
####
1 = low low alarm
1 = low alarm
1 = high alarm
1 = high high alarm
MSB LSB
####
1 = rate alarm 2
1 = rate alarm 1
1 = band alarm 1
1 = band alarm 2
MSB LSB