Watlow Series 988 Family - Manual (Page 40)

981,
982,
983, 984
Ramping Controller MTR Command
5.12 Data Communications with the Watlow Series 988 Family Command Summary Series 981-984, Chapter 5
MTR Response for a Set Point Step, Time-based (PTYP = TI) Syntax
? MTR
(Query
current
step info)
Monitor the Current Step for Current Process Information; response will parallel step type syntax below.
data.11 data.10 data.9 data.8 data.6 data.5 data.4 data.7 data.3 data.2 data.1
1 to 4
1 to 6
(Step
Type)
1= SP
(Set
Point) 0 to 99 0 to 59 0 to 59 (Event 3
Status)
"*"=
disabled or
unavailable
0=off
1=on (Event 4
Status)
"*"=
disabled or
unavailable RL to RH
DFLT:
75°F/
25°C/75
units, or
RL if >
the
above.
MTR Response for a Soak Step Syntax
1 to 4
1 to 6
(Step
Type)
2=
SOAH
(Soak) 0 to 99 0 to 59 0 to 59 (Event 3
Status)
"*"=
disabled or
unavailable
0=off
1=on (Event 4
Status)
"*"=
disabled or
unavailable (Wait for
Event)
"*"=
disabled or
unavailable
0=off
1=on (Wait for
Process)
"*"=
disabled or
unavailable
Range:
RL1 to
RH1
1 to 4
1 to 6
(Step
Type)
1= SP
(Set
Point) 0 to
360°F,
0 to
200°C, or
0 to 360
units RL to RH
DFLT:
75°F/
25°C/75
units, or
RL if >
the
above.
Note: MTR responses for Jump-loop, Link File and End Steps do not exist. These are zero time steps. The
MTR will wait for next available set point or soak step type information.
(Event 3
Status)
"*"=
disabled or
unavailable
0=off
1=on (Event 4
Status)
"*"=
disabled or
unavailable
MTR Response for a Set Point Step, Ramp Rate-based (PTYP = RATE) Syntax
Table 5.12 -
Key Command, MTR.
Vertical lines represent characters. Final vertical line represents a and a . Each field must have data.
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
processes and
equipment.
ç
CAUTION:
Excessive use of the
Monitor (MTR)
command can slow
Series 981-984 input
sampling and output
update rates. Avoid
sending the MTR
command more than
once every five
seconds.
NOTE:
You must send
an "*" if disabled
or unavailable.