Omron CS1W-SCU21 Operation Manual page 149

#WZKNKCT[ #TGC CPF %+1 #TGC #NNQECVKQPU
Command
SD signal
RD signal
RS signal

 #WZKNKCT[ #TGC CPF %+1 #TGC #NNQECVKQPU
 #WZKNKCT[ #TGC #NNQECVKQPU
2QTV  CPF 2QTV  2QTV
5GVVKPIU %JCPIG $KVU

ECP DG UVQTGF HQT GCEJ 4'%8 EQOOCPF KH  -D[VGU QH TGEGKXG FCVC KU HKTUV
UVQTGF KP VJG DWHHGT CPF  D[VGU ' *GZ KU UGV CU VJG OCZKOWO PWO
DGT QH UGPFTGEGKXG FCVC D[VGU 6JG VKOKPI QH VJKU QRGTCVKQP KU UJQYP DGNQY
5KIPCN PCOGU WUGF DGNQY CTG VJQUG CV VJG 5GTKCN %QOOWPKECVKQPU $QCTF
PMCR(260) instruction
Receive Send
RS signal turned OFF
when 2 Kbytes of data
accumulates in
reception buffer.
 9KVJ HWNNFWRNGZ RTQVQEQN EQOOWPKECVKQPU VJG 45 UKIPCN KU VWTPGF 1((
YJGP  -D[VGU QH FCVC JCU DGGP UVQTGF KP VJG TGEGRVKQP DWHHGT KG YKVJ
 -D[VGU TGOCKPKPI 
 6JG TGEGKXG FCVC 4& UKIPCN HTQO VJG EQOOWPKECVKQPU RCTVPGT KU KPKVKCNN[
UVQTGF KP VJG TGEGRVKQP DWHHGT
 6JG FCVC KP VJG TGEGRVKQP DWHHGT KU CPCN[\GF CPF C UGCTEJ KU RGTHQTOGF HQT
FCVC OCVEJKPI CP GZRGEVGF OGUUCIG TGIKUVGTGF YKVJ VJG 4'%8 EQOOCPF
 9JGP OCVEJKPI FCVC KU HQWPF CNN VJG RTGXKQWU FCVC KU FGNGVGF HTQO VJG TG
EGRVKQP DWHHGT
 +H VJKU TGUWNVU KP VJG COQWPV QH FCVC UVQTGF KP VJG TGEGRVKQP DWHHGT FTQRRKPI
VQ NGUU VJCP  -D[VGU KG OQTG VJCP  -D[VGU TGOCKPKPI  VJG 45 UKIPCN
KU VWTPGF 10
 &CVC VJCV KU TGEGKXGF YJKNG VJG 2/%4  KPUVTWEVKQP KU PQV DGKPI GZGEWV
GF KU FKUECTFGF
 +P HWNNFWRNGZ OQFG VJG FCVC NGHV QXGT CHVGT VJG CPCN[UKU RGTHQTOGF YKVJ VJG
NCUV 4'%8 EQOOCPF CPF CP[ UWDUGSWGPV FCVC TGEGKXGF DGHQTG VJG PGZV
2/%4  GZGEWVKQP KU FKUECTFGF &WTKPI VJKU KPVGTXCN 45 HNQY EQPVTQN
ECPPQV DG WUGF
0QVG (WNNFWRNGZ OQFG KU UWRRQTVGF QPN[ D[ VJG %5%, 5GTKGU
6JKU UGEVKQP FGUETKDGU VJG DKVU CPF YQTFU WUGF D[ VJG 5GTKCN %QOOWPKECVKQPU
$QCTF CPF 5GTKCN %QOOWPKECVKQPU 7PKVU KP VJG #WZKNKCT[ #TGC CPF VJG 5QHV
YCTG 5YKVEJGU CPF 5VCVWU #TGC CNNQECVGF KP VJG %+1 #TGC
6JGUG DKVU ECP DG VWTPGF 10 HTQO VJG RTQITCO WUKPI VJG 176 QT QVJGT
KPUVTWEVKQPU VQ EJCPIG EQOOWPKECVKQPU UGVVKPIU CPF TGUVCTV VJG 5GTKCN %QO
OWPKECVKQPU $QCTF RQTVU 9JGP EJCPIKPI VJG UGVVKPIU CPF TGUVCTVKPI VJG RQTV
JCXG DGGP EQORNGVGF VJG DKV YKNN CWVQOCVKECNN[ DG VWTPGF 1((
PMCR(260) instruction
Receive Send
RS turned ON when
only 0.5 Kbytes in
buffer.
Data received from the end of the
last RECV command until the next
PMCR(260) execution is discarded.
The RS signal does not operate.
5GEVKQP 
Receive