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13. Making Program Pattern Table and Data Table
Before setting program, make a program pattern table and data table.
13.1 Making Program Pattern Table
Please make a copy of the program pattern table (p.177), and follow the procedure below.
(1) Write a block number (Step SV, Step time, PID, Time signal 1 to 8, Wait, Alarm, Output) for
each step from Step 0 in numerical order.
(Even if the same block number is used, write for every step.)
(2) Draw a line graph of step SV.
Explanation of Program Pattern Table
Program pattern table consists of Y axis which represents the step SV (°C, °F), and X axis which
represents the step time (Hours:Minutes, Minutes:Seconds).
Step SV is considered to be the SV at the end of the step.
Step time is considered to be the step process time.
• The relation between the step SV and Step time can be explained as follows.
Step 0: The control is performed so that the temperature reaches from 0 to 500°C for 30 minutes.
Depending on the selection in [Program control start type], control is performed as follows.
• When SV start is selected: Performs control from the step SV set in [Step SV when
program control starts] so that the temperature reaches 500°C.
• When PV start or PVR start is selected: Step SV and time are advanced to PV, and
control starts so that the temperature reaches 500°C.
Step 1: The control is performed so that SV is maintained at 500°C for 1 hour.
Step 2: The control is performed so that SV rises from 500°C to 1000°C for 40 minutes.
Step 3: The control is performed so that SV is maintained at 1000°C for 1 hour.
Step 4: The control is performed so that SV drops from 1000°C to 0°C for 2 hours.
• PID block includes: OUT1 proportional band, Integral time, Derivative time, ARW, OUT2 proportional
band
10 types of PID block (0 – 9) can be set.
• Time signal 1 to 8 (TS1 – TS8) includes: Time signal output OFF time and Time signal output ON
time.
16 types of Time signal block (0 – 15) can be set for Time signal 1 to 8 (TS1 – TS8) respectively.
For Time signal 1 to 5 (TS1 – TS5), the Time signal output can be used only when Time signal output
is selected in [Time signal output/Status output].
• Wait block includes Wait values.
10 types of Wait block (0 – 9) can be set.
• Alarm block includes: EV1 alarm value, EV2 alarm value, EV3 alarm value, EV4 alarm value
10 types of Alarm block (0 – 9) can be set.
• Output block includes: OUT1 high limit, OUT1 low limit, OUT2 high limit, OUT2 low limit, OUT1
rate-of-change.
10 types of Output block (0 – 9) can be set.
Содержание PCA1
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