Watlow Series 988 Family - Manual (Page 36)

Name Description Read (?) and/or Write (=) Syntax Range
data.1 data.2
Modbus
Address
Ramping Controller Prompt Table
981,
982,
983, 984
Data Communications with the Watlow Series 988 Family Command Summary Series 981-984, Chapter 5 5.8
LOC Keyboard Lockout ? LOC 0 = No lockout
1300 = LOC data.2 1 = Lock out PID Menu and auto-tune
prompt
2 = Lock out System, PID and Program
Menus
3 = Lock out System, PID and Program
Menus; and set point 1 slewing
Default: 0
LOP Low Power Limit ? LOP -100% to HiP (%)
715 = LOP data.2 Default: -100% (heat/cool)
Default: 0% (heat only)
LRNH Learn High Slide- ? LRNH 0 = No function
1907 wire Resistance = LRNH data.2 1 = Learn
Default: 0
LRNL Learn Low Slide- ? LRNL 0 = No function
1906 wire Resistance = LRNL data.2 1 = Learn
Default: 0
MDL Model Number ? MDL 982 (981-984 ramping unit)
0
MOD Mode Key Action = MOD data.2 0 = Mode to previous prompt
1900 1 = Mode to next prompt
MTR Monitor the ? MTR See Key Command, "MTR," at the
1200 currently running end of this chapter for full response
step. syntax.
This key command
responds with all
step information for
these step types:
• Set Point (time)
• Set Point (rate)
• Soak
These step types
have zero-time
duration; they will
never respond
to an MTR query:
• Jump-loop
• Link File
• End Step
OT1 Output 1 Action ? OT1 0 = Heat
700 = OT1 data.2 1 = Cool
OT2 Output 2 Action ? OT2 0 = Heat
717 = OT2 data.2 1 = Cool
2 = None
3 = Alarm 2
4 = Alarm 2 reverse acting
OT3 Output 3 Action ? OT3 0 = None
734 = OT3 data.2 1 = Alarm 3
2 = Alarm 3 reverse acting
3 = Event 3 (ENT3)
Table 5.8 -
LOC to OT3
ç
CAUTION:
Avoid writing <=>
continuously, such
as ramping set
points or repetitive
loops, to the
Series 981-984
EEPROM memory.
Continuous writes
may result in
premature control
failure, system
downtime and
damage to pro-
cesses and
equipment.
NOTE:
The number of
decimal places
returned by many
of these com-
mands is deter-
mined by the DEC1
or IN1 setting.
(This does not
apply to Modbus
Protocol.)