Eaton ELC-PB - Page 180

3. Instruction Set
MN05003003E For more information visit: www.eaton.com
3-11
A scan cycle
M0
Y0
M1
A scan cycle
Mnemonic Function Program steps
PN
Positive contact to Negative contact 1
ELC ELCB ELCM
PB PC/PA/PH PV PB
PH/PA
Description:
When the conditions preceding PN command change from true to false, PN command (works as
contact A) will be ON for a scan cycle. In the next scan cycle it turns OFF.
Program Example:
M0 M1
Y0
N
Instruction: Operation:
LD M0 ; Load A contact of M0
AND M1 ; And A contact of M1
PN
; Positive contact to Negative contact
OUT Y0 ; Drive Y0 coil
Timing Diagram:
A scan cycle
M0
Y0
M1
A scan cycle