Filter
Top Products
221
CHAPTER 4 FUNCTIONS
4
4.16 Input/output (with Another Analog Module) Function
4.16 Input/output (with Another Analog Module) Function
Input and output can be processed using other analog modules (such as an A/D converter module or D/A converter
module) in the system.
(1) Input
In general, a temperature control module uses the temperature measured through thermocouples or platinum
resistance thermometers connected to the module as a temperature process value (PV).
In the Q64TCN, the digital input value of current or voltage converted by other analog modules (such as an A/D
converter module) in the system can also be used as a temperature process value (PV).
(a) Setting method
Follow the procedure below.
1. Set a value within the range of 200 to 299 in CH Input range (Un\G32, Un\G64, Un\G96, Un\G128).
( Page 96, Section 3.4.2 (12))
2. Store the value of another analog module (such as an A/D converter module) into CH
Temperature process value (PV) for input with another analog module (Un\G689 to Un\G692).
( Page 150, Section 3.4.2 (70))
● If the second procedure above is executed ahead of the first procedure, a write data error (error code: 4
H
) occurs.
● When this function is used, the value in the following buffer memory area is used for the temperature process value (PV)
scaling function.
•CH Temperature process value (PV) for input with another analog module (Un\G689 to Un\G692)
For details on the temperature process value (PV) scaling function, refer to the following.
Page 194, Section 4.12
(2) Output
Instead of the transistor output from the temperature control module, analog output values from other analog
modules (such as a D/A converter module) can be used as the manipulated value (MV).
(a) Setting method
Follow the procedure below (for the standard control).
1. Set a value in Resolution of the manipulated value for output with another analog module
(Un\G181). ( Page 134, Section 3.4.2 (48))
2. Store the value in CH Manipulated value (MV) for output with another analog module (Un\G177 to
Un\G180) into the buffer memory in other analog module (such as a D/A converter module).
( Page 133, Section 3.4.2 (47))
● When the manipulated value (MV) is -5.0% to 0.0%, 0 is stored in Manipulated value (MV) for output with another analog
module. When the manipulated value (MV) is 100.0% to 105.0%, 4000/12000/16000/20000 is stored in Manipulated
value (MV) for output with another analog module.
● The manipulated value (MV) in a percentage value is stored into Manipulated value (MV) for output with another analog
module (digital output value) in real time.
Common