6 basic setting commands, 6 basic setting commands -28, Wo sets alarm and do settings – Yokogawa Button Operated MV2000 User Manual

Page 102: Wh sets an alarm hysteresis, Xv sets the scan interval, Xb sets the burnout detection

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4-28

IM MV1000-17E

4.6 Basic Setting Commands

WO

Sets alarm and DO settings

To set alarm and DO settings

Syntax

WO p1,p2,p3,p4,p5<terminator>
p1 Alarm setting
p2 Reflash operation ON/OFF
p3 Interval for the low limit on the rate-of-

change (1 to 32)

p4 Interval for the high limit on the rate-of-

change (1 to 32)

p5 Alarm status indicator hold/nonhold

HOLD
NONHOLD

To set the internal switch

Syntax

WO p1,p2<terminator>
p1 DO type (SWITCH)
p2 AND switch number

NONE

No AND setting

S01

Specify only S01

S01-Sxx

Specify S01 to Sxx

xx = {02 to 30}

To set the output relay

Syntax

WO p1,p2,p3,p4,p5<terminator>
p1 DO type (RLY)
p2 Relay number

NONE

No AND setting

I01

Specify only I01

I01-Ixx

Specify I01 to Ixx

xx = {02 to 36}

p3 Energize/De-energize the relay

DE_ENERGIZE
ENERGIZE

p4 Relay hold/nonhold

NONHOLD
HOLD

p5 Relay action on ACK

NORMAL
RESET

Description Set parameter p2 according to the table in

section 4.3.

Query

WO[ p1]?

Example Set the output relay to no AND operation and the

relay action to energize and release the relay
output when an alarm acknowledge is received
regardless of the alarm status.
WORLY,NONE,ENERGINE,HOLD,RESET

WH

Sets an alarm hysteresis

For measurement channels

Syntax

WH p1,p2,p3<terminator>
p1 Channel type (MEASURE)
p2 High and low limit alarm hysteresis (0 to 50)

p3 Difference high and low limit alarm

hysteresis (0 to 50)

For computation channels

Syntax

WH p1,p2<terminator>
p1 Channel type (MATH)
p2 High and low limit alarm hysteresis (0 to 50)

For external input channels

Syntax

WH p1,p2<terminator>
p1 Channel type (EXTERNAL)
p2 High and low limit alarm hysteresis (0 to 50)

Query

WH[ p1]?

Example For measurement channels, set the high and low

limit alarm hysteresis to 4.0% and the difference
high and low limit alarm hysteresis to 0.0%.
WHMEASURE,40,0

Description You can set alarm settings on computation

channels on models with the /M1 math option.
You can set alarm settings on external input
channels on models with the /MC1 external input
channel option.

XV

Sets the scan interval

Syntax

XV p1,p2,p3,p4<terminator>
p1 1 (fixed)
p2 Scan interval mode

NORMAL Normal mode
FAST

Fast sampling mode

p3 Scan interval (25MS, 125MS, 250MS, 1S,

2S, 5S)

p4 A/D integration time (AUTO, 600Hz, 50Hz,

60Hz, 100ms)

Query

XV?

Example Set the scan interval to 1 second in normal

mode.
XVNORMAL,1

Description The combinations of scan interval modes and

scan intervals vary depending on the model.
See the MV1000/MV2000 User’s Manual (IM
MV1000-01E)
for details.

You can set p4 to 600Hz when the scan interval
is set to fast sampling mode. You can set p4 to
100ms when the scan interval is set to 2s or 5s.

XB

Sets the burnout detection

Syntax

XB p1,p2<terminator>
p1 Measurement channel number
p2 Burnout procedure

OFF

Not processed

UP

Set the measured result to +over

DOWN

Set the measured result to –over

Query

XB[ p1]?

Example Set the measured result to UP (+over) if a

burnout is detected on channel 001.
XB001,UP

4.6 Basic Setting Commands

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