Mitsubishi Electric MELSEC iQ-R Series User Manual page 126

Section 6 SETTING AND PROCEDURE FOR OPERATION
6.4.5 Debugging program
RE81WH provides a test function so that you can debug a program with no input of voltage or current. Pseudo-
value can be stored into the buffer memory. For detailed explanation for the test function, refer to "3.4.5".
● Test function stores pseudo-values for setting value and error information as well as measured value.
If you use these data to control the sequence program that controls external devices, there is a chance
that erroneous control may occur. For safety of external devices, use this function after disconnecting
the device.
(1) Starting the test mode
(a) Configure the Parameter setting as shown below. (Refer to "6.4.2".)
Item
Mode setting
(b) Execute the writing to PLC parameter.
After resetting the CPU module, the setting value will become effective.
(c) RE81WH start up in test mode after restart the CPU module.
At this time, All LEDs are turned on, and pseudo-values are stored in the buffer memory.
(2) Finish the test mode (Move back to the measuring mode)
(a) Configure the Parameter setting as shown below. (Refer to "6.4.2".)
Item
Mode setting
(b) Execute the writing to PLC parameter.
After resetting the CPU module, the setting value will become effective.
(c) RE81WH start up in measuring mode after restart the CPU module.
At this time, setting values, integrated values and periodic electric energy are the value before starting
test mode.
Caution
Setting value
Test mode
Setting value
Measuring mode
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RE81WH