User guide

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 = 0-5VÎ (dc)
3 = 1-5VÎ (dc)
4 = 0-10VÎ (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 = 0-5VÎ (dc)
3 = 1-5VÎ (dc)
4 = 0-10VÎ (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 = 0-5VÎ (dc)
3 = 1-5VÎ (dc)
4 = 0-10VÎ (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
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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.
(This does not
apply to Modbus
Protocol.)