User Message - Mitsubishi Electric L02SCPU User's Manual And Reference

4.6

User Message

Executing User message instruction (UMSG) displays a user message on the display unit. User messages are user-
defined messages for display unit.
Executing user message instruction (UMSG)
will issue a user message.
For details on User message instruction, refer to the following.
MELSEC-Q/L Programming Manual (Common Instruction)
● Under the "USER MESSAGE" menu selected from the "function selection" screen, the user message displayed last can
be displayed again.
"Function selection" screen
However, the user message will not be displayed if it is not held in the following cases.
• A user message is attempted to be displayed after User message instruction where empty character strings have
been specified as an argument is executed.
• A user message is attempted to be displayed while User message instruction has not been executed after the
CPU module is powered off and then on or is reset.
• User message instruction where a null code (00
message is displayed.
*1 When a displayed language is switched by language setting, the language of a user message is not changed.
● A user message is displayed whenever the User message instruction is on the rising edge or there is a change in the
message. If the intervals between the rising edges or changes in user message are too short, a user message will pop up
continually and therefore, operation of the display unit will be frequently interrupted. In this case, holding down the
button on the display unit for a while will disable the pop-up display. For how to enable pop-up display, refer to  Page
286, Section 4.8.4.
When the module receives a message during function
execution, the message is displayed on the display unit.
"User message menu" screen
) has been specified as an argument is executed while a user
H
CHAPTER 4 DISPLAY UNIT FUNCTIONS
"User message" screen
OK
4
*1
ESC
273