YOKOGAWA AXW4A User Manual

IM 01E21A21-02EN
<2. Safety Instrumented Systems Installation>
7
Example of generating an alarm current output;
(In case of “66:Dens cfg ERR” for BRAIN (“Density conguration error” for HART));
(1) Set parameters through BRAIN or HART communication protocol in order to generate an alarm at “Analog
Output 1” by making a condition of scale out at its high limit side of current value.
BRAIN: G04: AO1 ALM OUT
HART Menu Path:
Device root menu▶Detailed setup▶Analog output/input▶Analog output 1▶AO1 alarm out
Select “> 21.6 mA” when generating an alarm for its high limit side.
(a) BRAIN: H30: DENSITY SEL
HART Menu Path:
Device root menu▶Detailed setup▶Process variables▶Density▶Density value select
Select “Fixed value” above menu.
(b) BRAIN: H32: FIXED DENS
HART Menu Path:
Device root menu▶Detailed setup▶Process variables▶Density▶Density xed value
Set the parameter as “0.0” above menu.
(c) BRAIN: C30: PV FLOW SEL
HART Menu Path:
Device root menu▶Detailed setup▶Process variables▶PV ow select
Select “Mass” above menu.
An alarm, which was set at “Analog Output 1”, is generated and appeared at the result of above work.
(2) Set parameters through BRAIN or HART communication protocol in order to generate an alarm at “Analog
Output 1” by making a condition of scale out at its low limit side of current value.
BRAIN: G04: AO1 ALM OUT
HART Menu Path:
Device root menu▶Detailed setup▶Analog output/input▶Analog output 1▶AO1 alarm out
Select “< 2.4 mA” when generating an alarm for its low limit side.
(a) BRAIN: H30: DENSITY SEL
HART Menu Path:
Device root menu▶Detailed setup▶Process variables▶Density▶Density value select
Select “Fixed value” above menu.
(b) BRAIN: H32: FIXED DENS
HART Menu Path:
Device root menu▶Detailed setup▶Process variables▶Density▶Density xed value
Set the parameter as “0.0” above menu.
(c) BRAIN: C30: PV FLOW SEL
HART Menu Path:
Device root menu▶Detailed setup▶Process variables▶PV ow select
Select “Mass” above menu.
An alarm, which was set at “Analog Output 1”, is generated and appeared at the result of above work.

YOKOGAWA AXW4A Specifications

General

Brand	YOKOGAWA
Model	AXW4A
Category	Measuring Instruments
Language	English