PRT CTRL Integrated Controller Reference Manual

Base Register Configuration
Register 00100 Input Set Point = 1200
Register 00101 Input Hysterisis = 100
Register 00102 Input Hysterisis Time = 20
Given the above settings and assuming that the data value for the input comparison is set to
0 when the programmable function is started after 20 seconds the low PGM (if it is set) will be
activated. When the data value rises and exceeds the 1200 set point for longer than 20
seconds (Hysterisis Time) the low value will be deactivated. If the input then exceeds the set
point plus the hysterisis value (1300) for longer than 20 seconds the high PGM will be
activated and will deactivate when the input value is below the set point for longer than the
20 second time.
Setting a very low hysterisis time value can result in the system oscillating and causing
unstable operation, it is recommended to have a reasonable value for these settings.
Daylight Sensor
For example a daylight sensor that can be used would be set to hysterisis of 250 and a time
of 120 seconds, this ensures any variation in cloud cover, headlights or other scenarios are
managed by the comparison function and would not cause the lights being controlled from
either flicking off or on in a brief over/under light situation.
Comparison Input Register
The comparison input register is used for the source of the data to perform a comparison. For
example using a register setting of 00000 would perform a comparison with the data being
sent from Channel 1 of the first Analog Expander.
The comparison input register DOES NOT have to be a register that is linked with an
analog expander. This can be a register that is controlled from the Protégé System
Management suite or from another register. This is also an ideal method of testing
the comparison function before putting it in to operation.
FN001 Comp inp
reg: 00000
To modify the comparison input register (00000 to 65535), use the keypad as explained in
section Entering Decimal Numbers on Page 405 and press [ENTER].
Ripple Control PGM Output Function
The ripple control function will activate and then deactivate in sequence the PGM's that are
assigned to the stage outputs. Ideally suited for staging on lighting and air conditioning
systems in large industrial sites.
FN001 Func Type
Ripple PGM
Use the [1] and [3] keys to scroll the function types until you reach the Ripple PGM selection
and press [ENTER] to select the function type displayed and proceed to the next
programmable option for the Value Compare function. For more information about the list
control data entry refer to the section List Control Data Entry on Page 406.
Protégé Integrated System Controller Reference Manual
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