Yokogawa Value Series FX1000 - Manual (Page 97)

3-15
IM 04L21B01-17EN
Commands
1
2
3
4
5
6
App
Index
SA Sets an alarm
When Not Using Alarms
Syntax SA p1,p2,p3
p1 Measurement or computation channel
number
p2 Alarm number (1 to 4)
p3 Alarm on or off (OFF)
Query SA[p1[,p2]]?
Example Turn off alarm number 1 of channel 010.
SA010,1,OFF
Description You can specify computation channels (including
in queries) on models with the /M1, /PM1, or
/PWR1 math option.
When Using Alarms
Syntax SA p1,p2,p3,p4,p5,p6,p7,p8,p9
p1 Measurement or computation channel
number
p2 Alarm number (1 to 4)
p3 Alarm on or off (ON)
p4 Alarm type
H High limit alarm
L Low limit alarm
h Difference high limit alarm
l Difference low limit alarm
R High limit on rate-of-change alarm
r Low limit on rate-of-change alarm
T Delay high limit alarm
t Delay low limit alarm
(This parameter is case-sensitive.)
p5 Alarm value (when using a channel that is
set to Log scale—/LG1 option—this is the
mantissa of the alarm value)
p6 Relay setting
ON Relay setting on
OFF Relay setting off
p7 Relay number when p6 is set to ON
A space when p6 is set to OFF
p8 Alarm detection (ON, OFF)
p9 Exponent of the alarm value (when using
a channel that is set to Log scale—/LG1
option)
Query SA[p1[,p2]]?
Example Set a high limit alarm (alarm value = 1000) on
alarm number 1 of channel 002, and activate
relay I01 when an alarm occurs.
SA002,1,ON,H,1000,ON,I01
Description • For a channel whose input range is set to
SKIP (using the SR command), p3 cannot be
set to ON.
• For a channel whose computation channel
is set to OFF (using the SO command), p3
cannot be set to ON.
• All alarm settings on a channel are set to OFF
when:
• Its input type is changed (VOLT, TC, etc.).
• Its measuring range is changed.
• Its span value or scaling value is changed
(this includes changing the decimal place).
• The channel is a computation channel,
and the channel is turned on or off, or an
expression or a span value is changed.
• The h and l settings of p4 are valid only when
the measuring range is set to differential
computation between channels.
• If p4 is set to R or r, set the interval for the
high/low limit on the rate-of-change alarm
using the WO command.
• If p4 is set to T or t, set the alarm delay time
using the BD command.
• Set the p5 alarm to a value within the following
ranges based on the p4 alarm type or the
target channel.
• For upper, lower, delay upper and delay
lower alarms
DC voltage, thermocouple, or RTD input:
A value within the measurable range
Contact input: 0 or 1
Scaling (1-5V, scaling, and square root):
–5 to 105% of the span (and between
–30000 and 30000)
• Difference high limit and difference low limit
alarms
A value within the measurable range
• High limit on rate-of-change and low limit on
rate-of-change alarms
A value that consists of at least one non-
zero digit. For example, 0.0001 for the 2 V
range.
The maximum value must be within the
measurable range (and between –30000
and 30000). For example, 3.0000 for the
2 V range.
For contact input, you can only specify “1.”
• Computation channels
–9999999 to 99999999 (excluding the
decimal point; set using an integer)
• When using a channel that is set to Log
scale (/LG1 option):
The alarm types that you can select from
are H (high limit alarm), L (low limit alarm),
T (delay high limit alarm), and t (delay
low limit alarm). Set the alarm value by
specifying the mantissa (p5) and exponent
(p9).
Set the mantissa of the alarm value (p5) to
a value between 100 and 999 (excluding
the decimal point; set using an integer).
“100” means “1.00.”
The alarm hysteresis is fixed to 0.
3.4 Setting Commands