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3. AIAO Units
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y
M0 = On: Disable modifying CH1 configuration values.
3. Program
Description
y
When X0 = On, write K1 (H’0001) to CR#2 to configure CH1 for mode 1 (current
output mode).
y
When X1 = On, write K9,600 (Offset value for CH1) into CR#28 and K20,800 (Gain
value for CH1) into CR#34.
y
When X1 goes from On to Off, set M0 = On to disable modifying the D/A conversion
curve. Write K1 (H’1) into CR#40 b0=1.
4. Program
example
Ladder diagram:
Explanation:
Set CH1 to mode 1
(current output mode)
Set the Offset value for
CH1
Set the Gain value for
CH1
X0
M0
X1
K0
K34
K1
K0
K40
K1
K0
K1
TOP
K0
K1
M0
TOP
TOP
TOP
X1
SET
H1
K9600
K20800
H1
K2
K28
Disable modifying CH1
configuration values
3.2.2.10 Applications
Analog Current Output
1. Description
y
Assume a device requires a 0-20ma signal for control.
y
Configure an analog output channel for mode 1, i.e. the current output mode (0mA ~
20mA)
2. Addresses
y
D0: target current output value for CH1
y
D40: digital value converted moved to the target output current for CH1
3. Wiring
y
Connect the analog input terminal on the equipment to CH1 of ELCM-AN04NANN
(as shown below).
Содержание ELCM Series
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