Table 3-4 Function Block Parameter Designators - Honeywell VRX180 User Manual

Function Function Block
Block Name
Type
AI Analog Input
SY System Parameter
AO Analog Output
DI Discrete Input
DO Discrete Output
LP Control Loop
ON/OFF Loop only

Table 3-4 Function Block Parameter Designators

Output
code
OV Output Value
RT Reference Junction Temp.
AG Alarm Global
AH Alarm High
AL Alarm Low
DF Diagnostic failure
DG Diagnostic General
SF Storage Full
SW Storage Warning
AX Analog Safe Parameter
DX Discrete Safe Parameter
F1 F1 or Start Key on keyboard
F2 F2 or Hold Key on keyboard
F3 F3 or Reset Key on keyboard
F4 F4
F5 F5
OV Output Value
BC Back Calculation Value (Feedback)
S2 Process Variable (AO's input)
OS Output State
OS Output State
OV Output Value
PV Process Variable
DV Deviation Value
WS Working Setpoint
S1 Setpoint #1 Value
S2 Setpoint #2 Value
BC Back Calculation Value (Cascade feedback)
AM Auto/Manual Status
SS Setpoint #1/Setpoint #2 Status
OS Output Status
Video Recorder – User Manual
Programming and Operating Concepts
Parameter Name Parameter
Type
Analog
Analog
Discrete
Discrete
Discrete
Discrete
Discrete
Discrete
Discrete
Analog
Discrete
Discrete
Discrete
Discrete
Discrete
Discrete
Analog
Analog
Analog
Discrete
Discrete
Analog
Analog
Analog
Analog
Analog
Analog
Analog
Discrete
Discrete
Discrete
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