Eaton ELC-PB - 3.3 Pointers

ELC Programming Manual
For more information visit: www.eaton.com MN05003003E
3-12
3.3 Pointers
Mnemonic Function Program steps
P
Pointer (P0~P255) 1
ELC ELCB ELCM
PB PC/PA/PH PV PB PH/PA
Description:
Pointers are used with the jump instructions (CJ, CALL) to jump to another area of logic or to call a
subroutine. Pointer numbers can only be used once.
Program Example 1:
Y1
X1
P10
X0
CJ P10
Instruction: Operation:
LD X0 ; Load A contact of X0
CJ P10 ; Jump from CJ to P10
:
P10
; Pointer P10
LD X1 ; Load A contact of X1
OUT Y1 ; Drive Y1 coil
Program Example 2:
FEND
CALL
P9
P9
M1013
Y20
SRET
X0
Instruction: Operation:
LD X0 ; Call the Subroutine P9 when X0 is ON
CALL P9 ; Jump from CALL to P9
:
FEND ; Program end
P9
; Pointer P9
LD M1013 ; Load A contact of M1013
OUT Y20 ; Drive Y20 coil
:
SRET ; Subroutine return
Available devices:
1. ELC-PB and ELCB-PB have 64 pointers; available from the range of P0 to P63.
2. ELC-PC/PA/PH/PV and ELCM-PH/PA have 256 pointers; available from the range of
P0~P255.