Sn sets the scaling unit, Sa sets the alarm – Yokogawa DA100 User Manual
Page 55

IM DA100-11E
6-3
Commands
6
6.1 Setting Command
• The measurement range cannot be changed
while executing a report or computation.
Setting the strain input scaling
Setting
SRp1, p2, p3, p4, p5, p6, p7, p8, p9
p1 Channel number (001 to 560)
p2 SCL
p3 STRAIN
p4 Measurement range
2k/20k/200k
p5 Left value of span
p6 Right value of span
p7 Left value of scale
(-30000 to 30000)
p8 Right value of scale
(-30000 to 30000)
p9 Decimal point position of scale (0 to 4)
Example
Measure using the measurement range of 2k for
subunit 0 and channel 01, and convert 0
µε
to 0.00
and 1000
µε
to 100.00.
SR001, SCL, STRAIN, 2k, 0, 1000, 000,
10000, 2
Comments
• Even when the settings of p4 are same
parameters, the measurement range of the strain
varies depending on the gauge method. For
details, refer to page 5-7.
• Set spans p5 and p6 within the measurement
range indicated in page 5-7.
• Input values up to 6 digits disregarding the
decimal point for p5 and p6. The decimal point
position is fixed to the decimal point position
of the setting range of page 5-7.
• For p7, p9, and p10, either set all the three
parameters or omit all three.
• The measurement range cannot be changed
while executing a report.
• The measurement range cannot be changed
while executing a report or computation.
SN
Sets the scaling unit.
Mode
Operation mode
Setting
SNp1, p2
p1
Channel number (001 to 560)
Computation channel number (A01-A60)
p2
Unit character string (up to 6 characters)
Example
Set the scaling unit of subunit 0, channel 01 to
ABCDEF.
SN001, ABCDEF
Comments
• For a character string that can be used as units,
see the characters in Section 5.6, “ASCII Code
Table.”
• For stand-alone models computation channel
number is A01 to A30.
SA
Sets the alarm.
Mode
Operation mode
Setting
SAp1, p2, p3, p4, p5
p1
Channel number (001 to 560)
p2
Level (1 to 4)
p3
Type of alarm
OFF
No alarm setting
H
Upper limit
alarm
L
Lower limit
alarm
dH
Alarm for upper limit of
difference
dL
Alarm for lower limit of
difference
RH
Alarm for limit of
increasing rate-of-change
RL
Alarm for limit of
decreasing rate-of-change
p4
Alarm value
p5
Output relay number (Off or relay
number)
Example
Set the upper limit alarm (alarm value=1000) to
level 1 of subunit 0, channel 02 and have relay
module 1 be in slot 6 of subunit 0 when an alarm
is generated.
SA002, 1, H, 1000, 051
Comments
• If the input range setting is SKIP, the setting of
p3 can only be set to Off.
• In the following cases, alarm settings in that
channel are all canceled.
• Change of the type of input (VOLT, TC .....)
• Change of the input range
• Change of the indicating span or scaling
value when the scaling indication is set
(including a change in decimal point
position)
• In differential input or RRJC, a change in
reference channel number or type of input/
input range
• When the computational channel is set to on
or off, or the computational expression or
measuring span is changed.
• When the wiring method and the input range
of the power monitor module are change
• When continuous has been selected for a
channel at p1 and the measurement ranges
differ, the decimal point of the alarm value will
be decided by each measurement range (Refer
to page 5-6, 5-7).
If the value exceeds the resulting permissible
measurement range, an error will occur.
For example, when the measurement ranges of
the channels set to p1 are 20mV, 2V, TC type
T, and the alarm value is set at 10000, then the
situation becomes as follows;
• The alarm value for the channel with the 20mV
measurement range becomes 10.000mV.
• The alarm value for the channel with the 2V
measurement range becomes 1.0000V.
• The alarm value for the channel with the TC
type T measurement range becomes 1000.0
°
C.
Since the measurement range of TC type T
ranges from –200
°
C to 400.0ºC, an error occur.
For details about the decimal point, refer to page
5-6 to 5-9.
• If p3 is off, the parameters for p4 and p5 are
invalid.
• For the computation channel, the only alarms
that can be set are the high-limit alarm (H) and
low-limit alarm (L).
• The dH or dL setting for p3 is effective only
when the input range is a differential input.
• If p3 is set to RH or RL, set the interval with
the XA command.
• The setting ranges of p4 alarm values are those
on page 5-6 to 5-9.
• Enter the p4 alarm value with characters up to
6 digits excluding the decimal point.