Name
Description
Read (?) and/or Write (=) Syntax
Range
data.1
data.2
Modbus
Address
996, 997,
998
, 999
Dual Channel Controller Prompt Table
Command Summary Series 996-999, Chapter 7
7.9
Data Communications with the Watlow Series 988 Family
PIDA
Lockout Channel A
? <sp> PIDA <cr>
0 = No lockout
1307
PID Menu
= <sp> PIDA <sp> data.2 <cr>
1 = Read only
2 = No read or write
Default: 0
PIDB
Lockout Channel B
? <sp> PIDB <cr>
0 = No lockout
1308
PID Menu
= <sp> PIDB <sp> data.2 <cr>
1 = Read only
2 = No read or write
Default: 0
PRCA Process Range
? <sp> PRCA <cr>
0 = 4-20mA
701
Output Channel A
= <sp> PRCA <sp> data.2 <cr>
1 = 0-20mA
2 = 0-5V
Î
(dc)
3 = 1-5V
Î
(dc)
4 = 0-10V
Î
(dc)
Default: 0
PRCB Process Range
? <sp> PRCB <cr>
0 = 4-20mA
718
Output Channel B
= <sp> PRCB <sp> data.2 <cr>
1 = 0-20mA
2 = 0-5V
Î
(dc)
3 = 1-5V
Î
(dc)
4 = 0-10V
Î
(dc)
Default: 0
PRC3
Process Range
? <sp> PRC3 <cr>
0 = 4-20mA
735
Output 3
= <sp> PRC3 <sp> data.2 <cr>
1 = 0-20mA
2 = 0-5V
Î
(dc)
3 = 1-5V
Î
(dc)
4 = 0-10V
Î
(dc)
Default: 0
RA1A
Rate Output 1
? <sp> RA1A <cr>
0.00 to 9.99 minutes
504
PID Channel A
= <sp> RA1A <sp> data.2 <cr>
Default: 0.00
RA1B
Rate Output 1
? <sp> RA1B <cr>
0.00 to 9.99 minutes
524
PID Channel B
= <sp> RA1B <sp> data.2 <cr>
Default: 0.00
RA2A
Rate Output 2
? <sp> RA2A <cr>
0.00 to 9.99 minutes
514
PID Channel A
= <sp> RA2A <sp> data.2 <cr>
Default: 0.00
RA2B
Rate Output 2
? <sp> RA2B <cr>
0.00 to 9.99 minutes
534
PID Channel B
= <sp> RA2B <sp> data.2 <cr>
Default: 0.00
RE1A
Reset Output 1
? <sp> RE1A <cr>
0.00 to 9.99 repeats/minute
502
PID Channel A
= <sp> RE1A <sp> data.2 <cr>
Default: 0.10 repeats/minute
RE1B
Reset Output 1
? <sp> RE1B <cr>
0.00 to 9.99 repeats/minute
522
PID Channel B
= <sp> RE1B <sp> data.2 <cr>
Default: 0.10 repeats/minute
RE2A
Reset Output 2
? <sp> RE2A <cr>
0.00 to 9.99 repeats/minute
512
PID Channel A
= <sp> RE2A <sp> data.2 <cr>
Default: 0.10 repeats/minute
RE2B
Reset Output 2
? <sp> RE2B <cr>
0.00 to 9.99 repeats/minute
532
PID Channel B
= <sp> RE2B <sp> data.2 <cr>
Default: 0.10 repeats/minute
RH1
Range High
? <sp> RH1 <cr>
min. IN1 range to to max. IN1 range
603
Input 1
= <sp> RH1 <sp> data.2 <cr>
Default: Sensor high range
RH2
Range High
? <sp> RH2 <cr>
min. IN2 range to to max. IN2 range
613
Input 2
= <sp> RH2 <sp> data.2 <cr>
Default: Sensor high range
RL1
Range Low
? <sp> RL1 <cr>
min. IN1 range to to max. IN1 range
602
Input 1
= <sp> RL1 <sp> data.2 <cr>
Default: Sensor low range
RL2
Range Low
? <sp> RL2 <cr>
min. IN2 range to to max. IN2 range
612
Input 2
= <sp> RL2 <sp> data.2 <cr>
Default: Sensor low range
ç
CAUTION:
Avoid writing <=>
continuously, such
as ramping set
points or repetitive
loops, to the
Series 996-999
EEPROM memory.
Continuous writes
may result in
premature control
failure, system
downtime and
damage to pro-
cesses and
equipment.
Table 7.9 -
PIDA to RL2
NOTE:
The number of
decimal places
returned by many
of these com-
mands is deter-
mined by the
DEC1, DEC2, IN1
or IN2 setting.