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Data Communications with the Watlow Series 988 Family
Temperature/process Controller Prompt Table
986, 987,
988
, 989
Name
Description
Read (?) and/or Write (=) Syntax
Range
data.1
data.2
Modbus
address
6.6
Command Summary Series 986-989, Chapter 6
FTR1
Process Input 1
? <sp> FTR1 <cr>
-60 to 60 seconds
53
Filter Time Constant = <sp> FTR1 <sp> data.2 <cr>
Default: 0
FTR2
Process Input 2
? <sp> FTR2 <cr>
-60 to 60 seconds
63
Filter Time Constant = <sp> FTR2 <sp> data.2 <cr>
Default: 0
GLBL
Lockout
? <sp> GLBL <cr>
0 = No lockout
118
Global Menu
= <sp> GLBL <sp> data.2 <cr>
1 = Read only
2 = No read or write
Default: 0
HIP
High Power Limit
? <sp> HIP <cr>
LOP (%) to 100%
108
= <sp> HIP <sp> data.2 <cr>
Default: 100 (Heat / cool)
Default: 0 (Cool only)
HUNT Slidewire
? <sp> HUNT <cr>
0.1% to 100.0%
65
Deadband %
= <sp> HUNT <sp> data.2 <cr>
Default: 1.0%
HYS1
Output 1 Hysteresis
? <sp> HYS1 <cr>
0
°
F to 999
°
F
69
= <sp> HYS1 <sp> data.2 <cr>
0
°
C to 555
°
C
0 units to 999 units
Default: 3
°
F, 2
°
C, or 3 units
HYS2
Output 2 Hysteresis
? <sp> HYS2 <cr>
0
°
F to 999
°
F
72
= <sp> HYS2 <sp> data.2 <cr>
0
°
C to 555
°
C
0 units to 999 units
Default: 3
°
F, 2
°
C, or 3 units
HYS3
Output 3 Hysteresis
? <sp> HYS3 <cr>
0
°
F to 999
°
F
81
= <sp> HYS3 <sp> data.2 <cr>
0
°
C to 555
°
C
0 units to 999 units
Default: 3
°
F, 2
°
C, or 3 units
IDSP
Idle Set Point
? <sp> IDSP <cr>
RL1 to RH1
9
= <sp> IDSP <sp> data.2 <cr>
IN1
Input 1 Type
? <sp> IN1 <cr>
1 = J t/c; 32 to 1500
°
F/0 to 816
°
C
47
= <sp> IN1 <sp> data.2 <cr>
2 = K t/c; -328 to 2500
°
F/-200 to 1371
°
C
(Caution: Writing to
3 = T t/c; -328 to 750
°
F/-200 to 399
°
C
IN1 resets most
4 = N t/c; 32 to 2372
°
F/0 to 1300
°
C
prompts to their de-
5 = E t/c; -328 to 1470
°
F/-200 to 799
°
C
fault state.)
6 = C t/c (W3); 32 to 4200
°
F 0 to 2316
°
C
7 = D t/c (W5); 32 to 4200
°
F/0 to 2316
°
C
8 = Pt 2; 32 to 2543
°
F/0 to 1395
°
C
10 = R t/c; 32 to 3200
°
F/0 to 1760
°
C
11 = S t/c; 32 to 3200
°
F/0 to 1760
°
C
12 = B t/c; 1598 to 3300
°
F/870 to 1816
°
C
14 = 1
°
RTD (JIS); -328 to 1166
°
F/
-200 to 630
°
C, or
14 = 1
°
RTD (DIN); -328 to 1472
°
F/
-200 to 800
°
C
15 = 0.1
°
RTD; -99.9 to 999.9
°
F/
-99.9 to 700.0
°
C
17 = 4-20mA; -999 to 9999 units
18 = 0-20mA; -999 to 9999 units
19 = 0-5V
Î
(dc); -999 to 9999 units
20 = 1-5V
Î
(dc); -999 to 9999 units
21 = 0-10V
Î
(dc); -999 to 9999 units
23 = 0-50mV
Î
(dc); -999 to 9999 units
24 = 0-100mV
Î
(dc); -999 to 9999 units
Table 6.6 -
FTR1 to IN1
ç
CAUTION:
Avoid writing <=>
continuously, such
as ramping set
points or repetitive
loops, to the
Series 986-989
EEPROM memory.
Continuous writes
may result in
premature control
failure, system
downtime and
damage to
processes and
equipment.
NOTE:
The number of
decimal places
returned by many
of these
commands is
determined by the
DEC1, DEC2, IN1
or IN2 setting.