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Interfaces to automation systems
8.1 PROFIBUS DP interface
SITRANS SL
Operating Instructions, 12/2010, A5E01132948-04
135
Quality byte coding of input values for process pressure and process temperature:
Status coding for "bad quality"
Dec
Hex
Cause
Error codes and remedy
00
00
Quality status of source is bad.
Depending on the PROFIBUS source the
quality status is mapped to error code E12
for temperature or E16 for pressure.
01
01
Quality status of source is bad and
temp. or pressure is low limit.
Temperature: E12 & E13
Pressure: E16 & E17
02
02
Quality status of source is bad and
temp. or pressure is high limit.
Temperature: E12 & E14
Pressure: E16 & E18
03
03
Quality status of source is bad and
temp. or pressure is constant.
Temperature: E12 & E15
Pressure: E16 & E19
Status coding for "uncertain quality"
Dec
Hex
Cause
Error codes and remedy
64
40
Quality status of source is uncertain. Depending on the PROFIBUS source the
quality status is mapped to error code E23
for temperature or E24 for pressure.
65
41
Quality status of source is uncertain
and temp. or pressure is low limit.
Temperature: E23 & E13
Pressure: E24 & E17
66
42
Quality status of source is uncertain
and temp. or pressure is high limit.
Temperature: E23 & E14
Pressure: E24 & E18
67
43
Quality status of source is uncertain
and temp. or pressure is constant.
Temperature: E23 & E15
Pressure: E24 & E19
Status coding for "good quality"
Dec
Hex
Cause
Error codes and remedy
128
80
Ok
129
81
Quality status of temp. or pressure is
low limit.
Depending on the PROFIBUS source the
quality status is mapped to specific error
code for temperature or pressure.
Temperature: E13
Pressure: E17
130
82
Quality status of temp. or pressure is
high limit.
Temperature: E14
Pressure: E18
131
83
Quality status of temp. or pressure is
constant.
Temperature: E15
Pressure: E19