Explanation For The Application Commands - Delta C2000 series User Manual

Classical field oriented control ac motor drive

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16.6.4 Explanation for the Application Commands

S: Operand S can designate P.

Operand S of C2000 series can designate P0~P63.

1. S: The pointer of call subroutine.

2. Edit the subroutine designated by the pointer after FEND instruction.

3. If only CALL instruction is in use, it can call subroutines of the same pointer

number with no limit of times.

4. Subroutine can be nested for 5 levels including the initial CALL instruction. (If

entering the sixth level, the subroutine won't be executed.)

No contact to drive the instruction is required.

This instruction denotes the end of the main program. It has the same function

as that of END instruction when being executed by PLC.

CALL must be written after FEND instruction and add SRET instruction in the

end of its subroutine. Interruption program has to be written after FEND

instruction and IRET must be added in the end of the service program.

If several FEND instructions are in use, place the subroutine and interruption

service programs between the final FEND and END instruction.

After CALL instruction is executed, executing FEND before SRET will result in

errors in the program.

Word Devices

H KnX KnY KnM T

Word Devices

H KnX KnY KnM T

Chapter 16 PLC Function C2000 Series

Call Subroutine

16-bit command (3 STEPS)

32-bit command

Flag signal: None

The end of the main program (First End)

16-bit command (1 STEP)

32-bit command

Flag signal: None