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FUNCTIONS
This chapter describes the function details of the temperature control module.
For details on the I/O signals and buffer memory areas, refer to the following:
Page 156 Details of input signals
Page 164 Details of output signals
Page 213 Details of buffer memory addresses
This chapter describes the I/O signals and buffer memory addresses for CH1.
For details on the I/O signals for CH2 or later, refer to the following:
Page 154 List of I/O signals
For details on the buffer memory addresses for CH2 or later, refer to the following:
Page 167 List of buffer memory addresses
1.1
Control Mode Selection Function
A control mode can be selected using this function. This section describes control modes that can be selected for the
temperature control module.
Standard control, heating-cooling control, position proportional control
There are three types of control modes in the temperature control module: Standard control, heating-cooling control, and
position proportional control.
■Standard control
The control method is either one of heating (reverse action) or cooling (direct action). When the control method is heating, of
a heater for example, cooling is controlled by simply turning OFF the heating. When the control method is cooling, of cold
water for example, heating is controlled by simply turning OFF the cooling.
■Heating-cooling control
The control method is both heating and cooling. To heat up the target subject, its heating mean is turned ON, and its cooling
mean is turned OFF. To cool down the target subject, its heating mean is turned OFF, and its cooling mean is turned ON.
■Position proportional control
The control method is either one of heating (reverse action) or cooling (direct action). Fluid flow is controlled with an
electricoperated valve, and the process amount of such as temperature is controlled.
1 FUNCTIONS
1.1 Control Mode Selection Function
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