Sa alarm settings, Va alarm hysteresis settings, Xa settings related to alarm – Yokogawa Standalone MW100 User Manual

Page 25

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1-18

IM MW100-17E

SA

Alarm Settings

Setting

When p3=OFF
SAp1,p2,p3<terminator>
When p3 is not OFF
SAp1,p2,p3,p4,p5<terminator>

When Alarms are OFF

Setting

SAp1,p2,p3<terminator>
p1 Channel range (001 to 060 and A001 to

A300)

p2 Alarm number (1 to 4)
p3 Alarm type (OFF)

Query

SA[p1[p2]]?

Example

Turn OFF alarm number 1 on channel 10.
SA10,1,OFF

Explanation • If the /M1 MATH function option is not included,

MATH channel settings cannot be performed
(including queries).

• Specify measurement channels on 001 to 060 of p1.

With Alarms

Setting

SAp1,p2,p3,p4,p5<terminator>
p1 Channel range (001 to 060 and A001 to

A300)

p2 Alarm number (1 to 4)
p3 Alarm type
H

Upper limit alarm

L

Lower limit alarm

DH

Differential upper limit alarm

DL

Differential lower limit alarm

RH

Upper limit on rate-of-
change alarm

RL

Lower limit on rate-of-
change alarm

TH

Delay upper limit alarm

TL

Delay lower limit alarm

p4 Alarm value
p5 Relay number
OFF

No relay setting

001 to 060 Relay number

Query

SA[p1[p2]]?

Example

Set alarm number 1 on channel 2 to upper limit alarm
(alarm value 100.0), and set relay number 12 to
operate upon alarm occurrence.
SA002,1,H,1000,012

Explanation • If the /M1 MATH function option is not included,

MATH channels (A001 to A300) cannot be set
(including queries). However, if the pulse input
module is installed, MATH channels (A001 to A060)
can be set (including queries).

• Specify measurement channels on 001 to 060 of p1.
• When the input range setting (SR command) is SKIP,

p3 cannot be set to anything other than OFF.

• In the following case, all alarm settings for the

channel are OFF.
• Changing the input type, measuring range, and

MATH type

• When scaling, changing the scaling values

(including changing the decimal place).

• Turning MATH channels ON/OFF and changing

expressions.

• The p3 DH and DL setting are only valid when the

MATH type is difference between channels.

• If p3 is set to RH or RL, set the interval time for high

limit/low on rate of change using the XA command.

• If p3 is set to TH or TL, set the delay time using the

BD command.

• See the table in section 1.3 for the alarm value

setting range for p4.

• For information on how to add relay numbers, see

the main manual.

• For MATH channels, the alarm types that can be set

are H (upper limit alarm), TH (delay upper limit), TL
(delay lower limit), and L (lower limit alarm) only.

• Set the output type for relays to alarm using the XD

command, and set the relay numbers to p5.

• p3 and p5 cannot be changed while recording.

VA

Alarm Hysteresis Settings

Setting

VAp1,p2,p3<terminator>
p1 Channel range (001 to 060)
p2 Alarm number (1 to 4)
p3 Hysteresis value

Query

VA[p1[p2]]?

Example

Set alarm number 1 on channel 2 to hysteresis value
100.
VA002,1,100

Explanation • Specify measurement channels on 001 to 060 of p1.

• If the alarm type is high limit/low limit on rate-of-

change alarm, the hysteresis setting is invalid.

• See section 1.3 for the setting ranges for hysteresis

values.

• If the alarm setting is no alarms, this cannot be set.

XA

Settings Related to Alarm

Setting

XAp1,p2,p3<terminator>
p1 Rate-of-change limit on increase

interval (1 to 32)

p2 Rate-of-change limit on decrease

interval (1 to 32)

p3 Alarm status hold (OFF/ON)

Query

XA?

Example

Set the rate-of-change limit on increase interval to 10
and the rate-of-change limit on decrease to 12. Hold the
alarm status.
XA10,12,ON

Explanation Interval is set using the units of the measurement

interval. The measurement interval is set using the XV
command.

1.4 Setting Commands (System Related)

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