PLC Symbol |
Name |
Relay Circuit Symbol |
Function |
LOD |
Load |
 |
Reads the I/O status after storing an intermediate result. |
NOT |
Not |
 |
Inversion |
OUT |
Output |
 |
Output |
AND |
And |
 |
Logical AND |
OR |
Or |
 |
Logical OR |
TIM |
Timer |
 |
Timer |
CNT |
Counter |
 |
Counter |
SFR |
Shift Register |
 |
Shift register |
SOT |
Single output |
 |
Leading edge differentiation |
MCS |
Master Control Set |
 |
Starts a master control |
MCR |
Master Control Reset |
 |
Ends a master control |
SET |
Set |
 |
Sets an output, internal relay or shift register |
RST |
Reset |
 |
Resets an output, internal relay or shift register |
JMP |
Jump |
 |
Jumps a designate program area |
JEND |
Jump End |
 |
Ends a jump program |
END |
End |
 |
Ends a program |