48
Appendix
Appendix 1. Special soft component list
Appendix 1 mainly introduces the functions of XG series PLC special soft element, data register, FlashROM
and the address distribution of expansions for users to search.
Appendix 1-1
.
Special auxiliary relay list
Initial status (SM0-SM7)
ID
Function
Description
SM000
Normally ON coil when
operation
RUN
input
SM0
SM1
SM2
SM3
Scan period
SM000 keeps ON when PLC
running
SM001
Normally OFF coil when
operation
SM001 keeps OFF when
PLC running
SM002
Initial positive pulse coil
SM002 is ON in first scan
cycle
SM003
Initial negative pulse coil
SM003 is OFF in first scan
cycle
SM004
PLC running error
When SM4 sets ON, it indicates that there is an error in the operation
of PLC.
(Firmware version V3.4.5 and above supports this function by PLC)
SM005
Battery low alarm coil
When the battery voltage is less than 2.5V, SM5 will put ON (at this
time, please replace the battery as soon as possible, otherwise the data
will not be maintained)
SM007
Power down hold data error
Clock (SM11-SM14)
ID
Function
Description
SM011
10ms frequency cycle
5ms
5ms
SM012
100ms frequency cycle
50ms
50ms
SM013
1s frequency cycle
0.5s
0.5s