Omron 3G3MX2 Series User Manual page 82

Precautions for Correct Use
When the Drive Programming program is stopped, the data of the user parameter variables
before the program stop is retained. When the program execution is started again, the process
begins with the retained data.
Internal User Variables UL(00) to UL(07)
The Drive Programming's internal user variables UL(00) to UL(07) are the signed 2-word variables.
Use these variables for saving data during calculations such as four arithmetic operations.
Function
variable
UL(00) to Internal user variable
UL(07)
• The internal user variables UL(00) to UL(07) are cleared to zero when the power supply is turned on.
Any data saving measure like EEPROM is not provided.
• To set initial data, create a program in which the initial data is set to UL(00) to UL(07).
• To move the upper word data of the internal user variables UL(00) to UL(07) to the 1-word size user
parameter variables U(00) to U(31), use the following operation.
Assign the positive upper word data: U(00)  UL(00)/65536
Assign the negative upper word data: U(00)  UL(00)/65535
The lower word data will move to U(00) when U(00)  UL(00) is executed.
Precautions for Correct Use
When the Drive Programming program is stopped, the data of internal user variables before the
program stop is retained. When the program execution is started again, the process begins with
the retained data.
Internal User Contacts UB(0) to UB(7)
The Drive Programming's internal user contacts UB(0) to UB(7) are the bit-access variables.
Use these variables for saving data during bit operations.
You can also use the variable UBw as a word-access data which contains the internal user contacts
UB(0) to UB(7) in its lower byte.
Function
variable
UB(0) to Internal user contact
UB(7)
(bit access)
• You can use the internal user contacts UB(0) to UB(7) as bit-size variables.
• UB(0) to UB(7) are cleared to zero when the power supply is turned ON.
Any data saving measure like EEPROM is not provided.
• To set initial data, create a program in which the initial data is set to UB(0) to UB(7).
Drive Programming User's Manual (I580-E2)
Description Data range
2,147,483,648 to
2,147,483,647
Description Data range
0: OFF
1: ON
5 Drive Programming User Variables
Default
Unit
data

0
Default
Unit
data

0
Data size R/W
Signed R/W
2 words
5
Data size R/W
bit R/W
5 - 3