38
XLME
M0~M69999
HM0-HM11999
SM0~SM4999
In PLC, auxiliary relays are used frequently. This type of relay’s coil is same to the output
relay. They are driven by soft components in PLC;
Auxiliary relays M and HM have countless normally ON/OFF contactors. They can be used
freely, but this type of contactors can’t drive the external loads.
For common use
This type of auxiliary relays can be used only as normal auxiliary relays. I.e. if power supply
suddenly shut down during the running, the relays will be off.
Common usage relays can’t be used for power off retentive, but the zone can be modified;
For Power Off Retentive Use
The auxiliary relays for power off retentive usage, even the PLC is OFF, they can keep the
ON/OFF status.
Power off retentive zone cannot be modified;
Power off retentive relays are usually used to memory the status before stop the power, then
when power the PLC on again, the status can run again;
For Special Usage
Special relays are some relays which are defined with special meanings or functions, start
from SM0.
There are two functions for special relays, first is used to drive the coil, the other type is for
special running.
E.g.: SM2 is the initial pulse, activates only at the moment of start
SM34 is “all output disabled”
Special auxiliary relays can’t be used as normal relay M;
Note: The range of soft components mentioned above is the valid range of PLC in the X-NET
communication mode. In the MODBUS communication mode, some relays can not read and
write. The specific usable range is shown in chapter 6-2-3.
2-6
.
Status Relay (S, HS)
Status relays addresses of XD/XL series PLC are in form of decimal, the address are shown
below:
Series Name
Range
Normal
Power-off holding
XD1
S
S0~S1023
HS0~HS127
XD2
S0~S1023
HS0~HS127
XD3
S0~S1023
HS0~HS127
XD5
S0~S7999
HS0~HS999
Address List
Содержание XD Series
Страница 1: ...XD XL series PLC User manual Instruction WUXI XINJE ELECTRIC CO LTD Data No PD05 20201022 3 5 ...
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Страница 314: ...313 B Double click the middle part to modify ...