Emerson E300 Series Design Manual page 378

Safety Product Mechanical
information information installation
K27 Threshold Detector 1 Output Invert
Mode Open-Loop, RFC-A, RFC-S
Minimum 0
Default 0
Type 1 Bit User Save
Display Format Standard
Coding RW
See Threshold Detector 1 Output (K23).
K28 Threshold Detector 1 Destination
Mode Open-Loop, RFC-A, RFC-S
Minimum A00
Default A00
Type 16 Bit User Save
Display Format Menu Param Alpha Numeric
Coding RW, DE, PT, BU
See Threshold Detector 1 Output (K23).
K29 Variable Selector 1 Output
Mode Open-Loop, RFC-A, RFC-S
Minimum -100.00
Default
Type 16 Bit Volatile
Display Format Standard
Coding RO, ND, NC, PT
See Variable Selector 1 Source 1 (K30).
K30 Variable Selector 1 Source 1
Mode Open-Loop, RFC-A, RFC-S
Minimum A00
Default A00
Type 16 Bit User Save
Display Format Menu Param Alpha Numeric
Coding RW, PT, BU
The variable selector functions are always active even if the source and destination are not routed to valid parameters. If a source is not a valid
parameter then the source value is taken as 0. The update rate for each of the variable selector functions is always 4 ms.
The following description is for variable selector 1, but variable selector 2 operates in the same way. The source parameters selected with Variable
Selector 1 Source 1 (K30) and Variable Selector 1 Source 2 (K31) are converted to a percentage value, scaled with Variable Selector 1 Source 1
Scaling (K34) and Variable Selector 1 Source 2 Scaling (K35) respectively and then combined with a function defined by Variable Selector 1 Mode
(K32) to give Variable Selector 1 Output (K29) as a percentage value. If Variable Selector 1 Enable (K37) = 1 then the function operates normally. If
Variable Selector 1 Enable (K37) = 0 then Variable Selector 1 Output (K29) = 0.00% and any states within the function are reset (i.e. the time
constant function accumulator is held at zero). If the value of Variable Selector 1 Mode (K32) is changed then all internal function state are also reset.
378
Electrical Getting
User Menu A Commissioning
installation started
Advanced
Diagnostics Optimization CT MODBUS RTU Technical Data
Parameters
Maximum 1
Units
Update Rate 4 ms read
Decimal Places 0
Maximum AB99
Units
Update Rate Drive reset read
Decimal Places 3
Maximum 100.00
Units %
Update Rate 4 ms read
Decimal Places 2
Maximum AB99
Units
Update Rate Drive reset read
Decimal Places 3
E300 Design Guide
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