Black Box 945 Manual De Usuario
How to Use Data Communications
19
WATLOW Series 945
Commands
Data.1
Data.2
Low Limit
High Limit
Code
Function
AXHI
Process RL value
RH value
Alarm High X value
±
555/Deviation
±
999
AXLO
Process RL value
RH value
Alarm Low X value
±
555/Deviation
±
999
ALM
0
No alarms occurring
Writing a 0 will clear all
1
A1H occurring
alarms if the alarm
2
A1L occurring
condition no longer
4
A2H occurring
exists.
8
A2L occurring
AL1
0
2
0
Alarm 1 = deviation
1
Alarm 1 = process
2
No Alarm 1
AL2
0
2
0
Alarm 2 = deviation
1
Alarm 2 = process
2
No Alarm 2
ATMN
1
1
1
Auto/Manual toggle must
be sent twice within 5 sec.
be sent twice within 5 sec.
AUT
0
3
0
No auto-tuning
1
Slow response tuning
2
Medium response tuning
3
Fast response tuning
CAL*
-180
°
F
180
°
F
Calibration offset
-100
°
C
100
°
C
-180 Units
180 Units
CF
0
1
0
Display
°
C
1
Display
°
F
CLUP
Yes
No
SPC control limits update
CTX
1
60
Output X cycle time
DAY
1
31
Day of the month/data log
DB
0
99
°
F
Dead band
0
55
°
C
0 Units
99 Units
DEC
0
2
0
No decimal point
1
0.0
2
0.00
DEX
0.00
9.99
Output X derivative
DFL
0
1
0
US prompts
1
SI prompts
HOUR
0
23
Hour for data logging
HYSX
1
°
F
99
°
F
Output X switching hys.
1
°
C
55
°
C
1 Unit
99 Units
INDC
1
1
1
UP/DOWN key action
INT
0.0
60.0
Time interval in minutes
for logging
0.0 = logging OFF
for logging
0.0 = logging OFF
ITX
0.00
9.99
Output X integral
"=" Command
"The "=" Command sets a specific Series 945 parameter (Data.1) to a specific
value (Data.2) when the unit is in the HOLD mode. Use Tables 5 and 6 to select
parameters (Data.1) in the lefthand column. In Table 6 the low and high limit or
code values (Data.2) are in the three center columns.
value (Data.2) when the unit is in the HOLD mode. Use Tables 5 and 6 to select
parameters (Data.1) in the lefthand column. In Table 6 the low and high limit or
code values (Data.2) are in the three center columns.
NOTE:
An X means it
applies to either
Output 1 or
Output 2.
applies to either
Output 1 or
Output 2.
* When the 945 RTD
input is 0.1
input is 0.1
°
,
these
parameters will have
a decimal point to
the left of the least
significant digit.
a decimal point to
the left of the least
significant digit.
Table 6 -
"=" and "?" Com-
mands. These are
READ or WRITE
commands. See
Table 4 for more "?"
Commands.
"=" and "?" Com-
mands. These are
READ or WRITE
commands. See
Table 4 for more "?"
Commands.