Series 905
Page 28
Design Guide
Set Point Direction – SD1, SD2, SD3
The set point direction command returns or sets the direction of the set point. BELOW activates the set
point when the pressure is below the set point value; ABOVE activates the set point when the pressure is
above the set point value. Whenever the SD command is implemented the set point hysteresis is
automatically set to +10% of set point value if set point direction command is below and -10% of set point
value is if set point direction command is above. (See Set Point Value – SP1, SP2, SP3 and Hysteresis
Value – SH1, SH2, SH3, above.)
Values:
BELOW
,
ABOVE
(default:
BELOW
)
Query:
@253SD1?;FF
Query Response:
@253ACKBELOW;FF
Command:
@253SD1!ABOVE;FF
Command:
@253ACKABOVE;FF
Enable Set Point – EN1, EN2, EN3
The enable set point command returns enable status or disables the set point.
Values:
ON
,
OFF
(default:
OFF
)
Query:
@253EN1?;FF
Query Response:
@253ACKOFF;FF
Command:
@253EN1!ON;FF
Command:
@253ACKON;FF
Set Point Status – SS1, SS2, SS3
The set point status command command returns the status of the set point.
Values:
SET
,
CLEAR
Query:
@253SS1?;FF
Query Response:
@253ACKCLEAR;FF
