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CHAPTER 7 PROGRAMMING
7
7.2 When Using the Module in a Standard System Configuration
7.2.3 When performing the heating-cooling control
(b) Program example
• Program that changes the setting/operation mode
This program is the same as that of when the module is in the standard control (such as auto tuning, self-
tuning, and error code read). ( Page 315, Section 7.2.1 (6) (f))
• Initial setting program
• Program that executes the auto tuning and backs up the PID constants in E
2
PROM if the auto tuning is
normally completed (The auto tuning is stopped when an alert is detected.)
This program is the same as that of when the module is in the standard control (such as auto tuning, self-
tuning, and error code read). ( Page 317, Section 7.2.1 (7) (b))
• Program that reads the PID constants from E
2
PROM
This program is the same as that of when the module is in the standard control (such as auto tuning, self-
tuning, and error code read). ( Page 315, Section 7.2.1 (6) (f))
• Program that reads an error code
CH3 Unused channel setting: Unused
CH4 Unused channel setting: Unused
CH1 Unused channel setting: Used
Flag 0 for setting value write: ON
Flag 1 for setting value write: ON
CH1 Input range: 2
CH1 Heating control output cycle
setting: 30s
CH1 to CH4 Alert 1 mode setting
: Upper limit input alert
CH1 Cooling control output cycle
setting: 30s
CH1 Overlap/dead band setting
: -0.3%
Cooling method setting: Air cooling
(cooling capacity: low)
Setting change instruction: ON
Setting change instruction: OFF
Flag 2 for setting value write: ON
Flag 2 for setting value write: OFF
Flag 1 for setting value write: OFF
CH1 Set value (SV) setting: 200
CH1 Alert set value 1: 250
Read a write data error code to D50.
Output data read from a write data
error code to Y60 to Y6F.
Error reset instruction: ON
Error reset instruction: OFF
Read CH1 Temperature process
value (PV) to D51.