Mark; Pc Mode; Stepping Ladder; Interruption - Xinje ZG3 Series User Manual

ID Function
SM020 Zero bit
SM021 Borrow bit
SM022 Carry bit
ID Function
Retentive
SM032
reset
SM033 Clear user's program
SM034 All output forbidden
ID Function
SM040
Address
ID
SM050 I0000/I0001
SM051 I0100/I0101
SM052 I0200/I0201
SM053 I0300/I0301
SM054 I0400/I0401
...... ......
SM069 I1900/I1901
SM070 I40**
SM071 I41**
SM072 I42**
SM073 I43**
SM074 I44**
...... ......
SM089 I59**
SM090
Mark（SM20-SM29）
Description
SM020 is ON when plus/minus operation result is 0
SM021 is ON when minus operation overflows
SM022 is ON when plus operation overflows
PC Mode（SM32-SM34）
Description
register
When SM032 is ON, ON/OFF mapping memory of HM、HS
and current values of HT、HC、HD will be reset.
When SM033 is ON, all PLC user's program will be cleared.
When SM034 is ON, all PLC external contacts will be set
OFF.

Stepping Ladder

Description
Interruption（SM50-SM80）
（M）
Function
Forbid input interruption 0
Forbid input interruption 1
Forbid input interruption 2
Forbid input interruption 3
Forbid input interruption 4
......
Forbid input interruption 19
Forbid timing interruption 0
Forbid timing interruption 1
Forbid timing interruption 2
Forbid timing interruption 3
Forbid timing interruption 4
......
Forbid timing interruption 19
Forbid all interruptions
Description
After executing EI instruction,
the input interruption couldn't act
independently when M acts, even
if the interruption is allowed.
E.g. ： when SM050 is ON,
I0000/I0001 is forbidden.
After executing EI instruction,
the timing interruption couldn't
act independently when M acts,
even if the interruption is
allowed.
Forbid all interruptions