West Control Solutions N6600 - Manual (Page 59)

NOTES ON TABLE 5-2 (Cont.)
00170 = Enable Short Circuit Heater Break Alarm 4
00180 = Disable Short Circuit Heater Break Alarm 4
00190 = Heater Nominal Current Quick Transfer 5
1. Only if AM Key Usage = PoEn
2. The Controller will go into Pre-Tune Mode only if the
process variable is at least 5% of input span from the
setpoint.
3. Only if AM Key Usage = OoFF.
4. Not applicable if Heater Break Input Type is configured
to be SCRi.
5. Only available if Heater Break Alarm Strategy is set to
Percentage Mode.
5.3 INDIVIDUAL PARAMETERS
Unless otherwise stated, the {DATA} element will follow the standard five-digit
format and the decimal point position must be correct for the new value to be
accepted and for modification to occur.
5.3.1 Input Parameters
5.3.1.1 PROCESS VARIABLE OR MEASURED VARIABLE {P} = M
This parameter may be interrogated only, using a Type 2 message. If the process
variable is out of range, the five-digit {DATA} field in the reply will not contain a
number, but will contain 0 (over-range) or 5 (under-range).
5.3.1.2 PROCESS VARIABLE OFFSET {P} = v
This parameter may be modified/interrogated using a Type 2 message or a Type
3/4 message sequence. It modifies the actual process variable value (as
measured at the Controller’s input terminals) in the following manner:
Modified PV value = Actual PV value + process variable offset value
The modified PV value is limited by Range Maximum and Range Minimum and is
used for display and alarm purposes and for recorder outputs.
NOTE: This parameter value should be selected with care. Any
adjustment to this parameter is, in effect, an adjustment to the
Controller’s calibration. Injudicious application of values to this
O075-5 5-7
PM-0075