3.1 Basic Functionality
Programs
3-11
3
CPU Unit Functionality
Note: If a program alarm occurs, motion program error information is provided in the Error Information Dialog Box and given in
the S registers.
Bit 6
Reserved for system.
−
Bit 7
Reserved for system.
−
Bit 8
Program Alarm
This bit is set to 1 when a program alarm occurs.
When this bit is set to 1, details on the error will be displayed in the Error Infor-
mation Dialog Box and are given in the S registers.
0: There is no program alarm.
1: A program alarm occurred.
Bit 9
Program Stopped at
Breakpoint
This bit is set to 1 when execution of a program stops at a breakpoint in Debug
Operation Mode.
0: Not stopped at a breakpoint.
1: Stopped at a breakpoint.
Bit A
Reserved for system.
−
Bit B
Debug Operation Mode
This bit is set to 1 when a program is running in Debug Operation Mode.
0: Not in Debug Operation Mode (Normal Execution Mode).
1: In Debug Operation Mode.
Bit C
Program Type
This bit reports whether the program that is being executed is a motion program
or a sequence program.
0: Motion program
1: Sequence program
Bit D
Start Request History
This bit is set to 1 when the Request for Start of Program Operation is ON.
0: Request for Start of Program Operation is OFF.
1: Request for Start of Program Operation is ON.
Bit E
No System Work Error
or Execution Scan Error
This bit is set to 1 when a system work number that was needed to execute a
motion program could not be obtained, or when an MSEE instruction is pro-
grammed in a drawing other than a DWG.H.
0: There is no system work error or execution scan error.
1: A no system work error or execution scan error occurred.
Bit F
Main Program Number
Limit Exceeded Error
This bit is set to 1 when the specified motion program number is out of range.
Motion program number range:1 to 512
0: There is no motion program number error.
1: A motion program number error occurred.
Continued from previous page.
Bit No.
Name
Description
