Publication 1762-RM001C-EN-P
19-14 Process Control Instruction
Derivative Action Bit (DA)
When set (1), the derivative (rate) action (DA) bit causes the derivative
(rate) calculation to be evaluated on the error instead of the process
variable (PV). When clear (0), this bit allows the derivative (rate)
calculation to be evaluated where the derivative is performed on the PV.
CV Upper Limit Alarm (UL)
The control variable upper limit alarm bit is set when the calculated CV
output exceeds the upper CV limit.
CV Lower Limit Alarm (LL)
The control variable lower limit alarm bit is set (1) when the calculated
CV output is less than the lower CV limit.
Setpoint Out Of Range (SP)
This bit is set (1) when the setpoint:
•
exceeds the maximum scaled value, or
•
is less than the minimum scaled value.
Tuning Parameter
Descriptions
Address Data Format Range Type User Program
Access
DA - Derivative Action Bit PD10:0/DA binary (bit) 0 or 1 control read/write
Tuning Parameter
Descriptions
Address Data Format Range Type User Program
Access
UL - CV Upper Limit Alarm PD10:0/UL binary (bit) 0 or 1 status read/write
Tuning Parameter
Descriptions
Address Data Format Range Type User Program
Access
LL - CV Lower Limit Alarm PD10:0/LL binary (bit) 0 or 1 status read/write
Tuning Parameter
Descriptions
Address Data Format Range Type User Program
Access
SP - Setpoint Out of Range PD10:0/SP binary (bit) 0 or 1 status read/write
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