Mitsubishi MELSEC Q Series Programming Manual page 498

ECALL(P)
Operation Error
(1) In any of the following cases, an operation error occurs, the error flag (SM0) turns ON, and
an error code is stored into SD0.
• The device specified for the argument cannot be secured for the data size.
• Following the execution of the ECALL (P) instruction, an END, FEND, GOEND, or STOP
instruction is executed before the execution of the RET instruction.
• An RET instruction is executed prior to the execution of the ECALL(P) instruction.
• A 17th nesting level is executed.
• The subroutine program of the pointer designated by the ECALL(P) instruction does not
exist.
• The designated file does not exist.
• The designated file cannot be executed.
Program Example
(1) The following program executes program block P0 of the program A-LINE when X20 is
turned ON.
[Ladder Mode]
[MAIN]
[A-LINE]
7-124
[List Mode]
Step Instruction
Instruction
Step
(Error code: 4101)
(Error code: 4211)
(Error code: 4212)
(Error code: 4213)
(Error code: 4210)
(Error code: 2410)
(Error code: 2411)
Device
Device