3 . I n s t r u c t i o n S e t
M N 0 5 0 0 3 0 0 3 E F o r m o r e i n f o r m a t i o n v i s i t :
w w w. e a t o n . c o m
3 - 3 2 9
API Mnemonic
Operands
Function
145
FTC
S
1
, S
2
, S
3
, D
Fuzzy Temperature Control
Bit Devices
Word devices
Program Steps
Type
OP
X Y M S K H KnX KnY KnM KnS T
C
D
E
F
S
1
*
*
*
S
2
*
*
*
S
3
*
D
*
FTC: 9 steps
ELC ELCB
ELCM
PB PC/PA/PH
PV
PB PH/PA
32
16
P
32
16
P
32
16
P
32 16 P 32
16
P
Operands:
S
1
: Target value (SV)
S
2
: Present measured value (PV)
S
3
: Parameter list (occupies 6
consecutive addresses)
D
: Output value (MV)
Description:
1. Operand
S
1
range is 1~5000 representing 0.1
°
C ~500
°
C. The units are 0.1
°
C. If
S
3
+1 (refer to
the Notes below) is set to K0 it represents 0.1
°
C~500
°
C.
2. Operand
S
2
range is 1~5000 representing 0.1
°
C ~500
°
C. The units are 0.1
°
C. If
S
3
+1 (refer to
the Notes below) is set to K0 it represents 0.1
°
C~500
°
C.
3.
The analog temperature input will be scaled to the range 1~5000.
4.
S
3
is the sampling time setting. If this setting is less than K1, the instruction will not operate. If
this setting exceeds K200, it will use K200.
5.
Bit 0 of
S
3
+1 configures the temperature for
°
C or
°
F. If bit 0 is K0, it’s
°
C and if bit 0 is K1 it’s
°
F. If Bit 1 of
S
3
+1 is K0 the input filter is disabled. If bit 1 of
S
3
+1 is k1, the input filter is active.
Refer to the Notes below for information on bits 2-5.
6.
The range of
D
is 0~(sampling time*100). When using the FTC instruction, it is necessary to
use it in conjunction with other instructions, based on the heater type. For example, the FTC
instruction can be used with the GPWM instruction to control output pulses. (Sampling
time*100) would be the output cycle time of GPWM and MV the output width of the GPWM
pulse. See Example 1 below.
7.
There is no limit on the number of times this instruction can be used in a program.
Program Example:
1.
Enter the parameters before executing the FTC instruction.
2.
When X0= ON, the instruction is executed and the result is saved in D150. When X0= OFF,
instruction is not executed and the data is unchanged.
X0
FTC
D0
D1
D100
D150
Содержание ELC-PB
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