Adding autostart and linking files, Adding an autostart step type, Linking files – Watlow Series 922 User Manual
Page 18: Adding the autostart step, Table 4, Linking to another file, Table 5, Sample program
18
WATLOW Series 922 User's Manual
Sample Program, Chapter 3
Sample Program
Adding AUTOSTART and LINKing Files
The Series 922 gives you the capability to link files together. The LINK step
allows you to link the last step of a profile to the first step of another profile.
We are going to edit the program again by adding a LINK step at the end of the
profile. First, we must create another file. If you try to run your program with a
LINK that goes to a nonexisting file, you will receive ER2 0036. This error means
"no file found." Follow Table 5 to add a LINK and a new FILE to your program.
The 922 can also automatically start your program, or a step, on a specified day
and time. When you use an AUTOSTART in your program, it stops your program,
and waits for the day and time you entered under the AUTOSTART step type. The
Series 922 then executes the next sequential step. AUTOSTART allows you to
wait up to seven days in the future; day 0 is always the current day. The days
accumulated increases by 1 every time the Real Time clock goes from 23:59 to
00:00. If 0 is programmed for DAY, and the Real Time clock is greater than the
programmed AUTOSTART time, the AUTOSTART waits 6 days along with the
programmed time.
Run your program again beginning at FILE 1, STEP 8. Step through the menu to
see what step type you are on, and your time remaining. Watch to see what
happens at the end of File 1. The AUTOSTART waits for approximately 5 minutes
into the future before continuing with File 5.
FILE? STEP STEP TYPE
SP1 DAY HOUR
MIN
SEC
EV1
EV2
FILE?
1
8
LINK
5
5
1
AUTOSTART
0
current
current + 5
5
2
SETPOINT
175
0
0
50
ON
ON
5
3
SETPOINT
175
0
0
20
ON
ON
5
4
SETPOINT
100
0
1
15
ON
OFF
5
5
SETPOINT
100
0
0
10
ON
OFF
5
6
SETPOINT
75
0
0
25
OFF
OFF
5
7
STOP
Table 5 -
LINKing to
Another File with
AUTOSTART.
125
100
75
50
25
0
Temp/
°
F
Minutes:Seconds
0:00
0:30
1:00
1:30
2:00
2:30
Step 1
Autostart step.
Step 2
Ramps to 175
°
F.
Step 7
Stop step.
Step 6
Ramps to 75
°
F.
Step 4
Ramps to 100
°
F.
Step 5
Soak step.
150
175
Step 3
Soak step.
3:00
Profile #5