Detailed Description of Diagnostic Language Objects for the T_PROC_3SING_LOOP-Type IODDT
(Original Document)
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At a Glance
This section describes the language objects for the T_PROC_3SING_LOOP-type IODDT. These diagnostic language objects are associated to 3-single-loop controllers. The section groups the word objects, whose bits have a specific meaning.
Sample Variable Declaration: T_PROC_3SING_LOOP-type IODDT_VAR1.
STATUS4 Status Word
The following table explains the various meanings of the STATUS4 (%MWr.m.c.11) status word bits. Word grouping fine diagnostics of different errors.
Standard symbol
Type
Access
Meaning
Address
AT_FAILED
BOOL
R
Auto-tuning failed.
%MWr.m.c.11.0
AT_ABORTED
BOOL
R
Auto-tuning diagnostics interrupted.
%MWr.m.c.11.1
AT_ERR_PARAM
BOOL
R
Auto-tuning diagnostics parameter error.
%MWr.m.c.11.2
AT_PWF_OR_EFB_FAIL
BOOL
R
Auto-tuning diagnostics system error or power failure.
%MWr.m.c.11.3
AT_ERR_SATUR
BOOL
R
Auto-tuning diagnostics process value saturation.
%MWr.m.c.11.4
AT_DV_TOO_SMALL
BOOL
R
Auto-tuning diagnostics insufficient process value deviation.
%MWr.m.c.11.5
AT_TSAMP_HIGH
BOOL
R
Auto-tuning Diagnostics sampling pulse period too long.
%MWr.m.c.11.6
AT_INCONSIST_RESP
BOOL
R
Auto-tuning diagnostics inconsistent response.
%MWr.m.c.11.7
AT_NOT_STAB_INIT
BOOL
R
Auto-tuning diagnostics: initially unstable process value.
%MWr.m.c.11.8
AT_TMAX_TOO_SMALL
BOOL
R
Auto-tuning diagnostics: step duration too brief.
%MWr.m.c.11.9
AT_NOISE_TOO_HIGH
BOOL
R
Auto-tuning diagnostics: process value noise too loud.
%MWr.m.c.11.10
AT_TMAX_TOO_HIGH
BOOL
R
Auto-tuning diagnostics: step duration too long.
%MWr.m.c.11.11
AT_OVERSHOOT
BOOL
R
Auto-tuning diagnostics: overshoot exceeding 10%.
%MWr.m.c.11.12
AT_UNDERSHOOT
BOOL
R
Auto-tuning Diagnostics: non-minimal step too long.
%MWr.m.c.11.13
AT_UNSYMETRICAL_PT
BOOL
R
Auto-tuning diagnostics: procedure too asymmetrical.
%MWr.m.c.11.14
AT_INTEGRATING_PT
BOOL
R
Auto-tuning diagnostics: integrating process.
%MWr.m.c.11.15
Command Word
The following table explains the various meanings of the ORDER_COMMAND (%MWr.m.c.13) command word and of the PARAM_COMMAND (%MDr.m.c.1114) command parameters word.
Standard symbol
Type
Access
Meaning
Address
ORDER_COMMAND
INT
R/W
Command Word.
%MWr.m.c.13
PARAM_COMMAND
DINT
R/W
Command Parameter.
%MDr.m.c.14