West Control Solutions N6600 - Manual (Page 43)

O075-4 4-7
PM-0075
Parameter No. Notes
Comms. Write Status 1 Read Only. 1 = enabled, 0 = disabled
Auto/Manual Control 2 1 = Manual, 0 = Auto
Self-Tune 4 3 1 = activate(d), 0 = dis-engage(d)
Pre-Tune 5 4 1 = activate(d), 0 = dis-engage(d)
Alarm 1 Status 5 Read Only. 1 = active, 0 = inactive
Alarm 2 Status 6 Read Only. 1 = active, 0 = inactive
Setpoint Ramp Enable/Disable 7 1 = enable(d), 0 = disable(d)
Parameter Changed 2 8 Read Only. 1 = change, 0 = no change
Auto/Output Turn-Off 3 9 1 = Output Turn-Off, 0 = Auto Control
High Heater Break Alarm Status 10 Read Only. 1 = active, 0 = inactive
Low Heater Break Alarm Status
11 Read Only. 1 = active, 0 = inactive
Short-Circuit Heater Break
Alarm Status
12 Read Only. 1 = active, 0 = inactive
Heater Break Current Transfer
(Quick Transfer)
13 1 = initiate transfer, 0 = no transfer.
This bit will always be 0 when read.
Short-Circuit Heater Break
Alarm Enable/Disable
14 1 = enable(d), 0 = disable(d)
Reserved 15
Reserved 16
NOTES
1. Not available if AM Key Usage (see Subsection 3.2.37) is not set to Auto/Manual
Control Selection.
2. This indicates whether a parameter has been changed from the front panel
since the last interrogation via the communications link. Every interrogation of this
bit resets it to 0.
3. Not available if AM Key Usage (see Subsection 3.2.37) is not set to Auto/Output
Turn-Off Selection.
4. If Setpoint Ramping is enabled, an Activate Self-Tune command will not take
effect until the setpoint has reached its target value.
5. An Activate Pre-Tune command will fail if the process variable is within 5% of
input span from the setpoint.
6. Not available if Heater Break Input Type is configured to be SCRi.
7. Available only if Heater Break Alarm Strategy is set to Percentage Mode.
Table 4-1 MODBUS Bit Parameters