Diagnostics Optimization CT MODBUS RTU Technical Data
E300 Design Guide
377
Issue Number: 1
The threshold detector functions are always active even if the source and destination are not routed to valid parameters. If the source is not a valid
parameter then the source value is taken as 0. The update rate for each of the threshold detector functions is always 4 ms.
The following description is for threshold detector 1, but threshold detector 2 operates in the same way. The level of the parameter defined by
Threshold Detector 1 Source
(
K24
) is converted to a percentage and compared to
Threshold Detector 1 Level
(
K25
) with hysteresis to give
Threshold
Detector 1 Output
(
K23
) as follows:
Lower threshold =
Threshold Detector 1 Level
(
K25
) -
Threshold Detector 1 Hysteresis
(
K26
)
Upper threshold =
Threshold Detector 1 Level
(
K25
) +
Threshold Detector 1 Hysteresis
(
K26
)
The output value can then be inverted with
Threshold Detector 1 Output Invert
(
K27
) before being routed to the destination defined by
Threshold
Detector 1 Destination
(
K28
).
See
Threshold Detector 1 Output
(
K23
).
See
Threshold Detector 1 Output
(
K23
).
See
Threshold Detector 1 Output
(
K23
).
K23
Threshold Detector 1 Output
Mode
Open-Loop, RFC-A, RFC-S
Minimum
0
Maximum
1
Default
Units
Type
1 Bit Volatile
Update Rate
4 ms read
Display Format
Standard
Decimal Places
0
Coding
RO, ND, NC, PT
Source
Threshold Detector 1 Output
(K23)
Source 0
Lower threshold
≤
Source
No change of state
Source
≥
Upper threshold
1
K24
Threshold Detector 1 Source
Mode
Open-Loop, RFC-A, RFC-S
Minimum
A00
Maximum
AB99
Default
A00
Units
Type
16 Bit User Save
Update Rate
Drive reset read
Display Format
Menu Param Alpha Numeric
Decimal Places
3
Coding
RW, PT, BU
K25
Threshold Detector 1 Level
Mode
Open-Loop, RFC-A, RFC-S
Minimum
0.00
Maximum
100.00
Default
0.00
Units
%
Type
16 Bit User Save
Update Rate
4 ms read
Display Format
Standard
Decimal Places
2
Coding
RW
K26
Threshold Detector 1 Hysteresis
Mode
Open-Loop, RFC-A, RFC-S
Minimum
0.00
Maximum
25.00
Default
0.00
Units
%
Type
16 Bit User Save
Update Rate
4 ms read
Display Format
Standard
Decimal Places
2
Coding
RW
Summary of Contents for 03200106
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