1XGTXKGYQHVJG2TQVQEQN/CETQ(WPEVKQPU
5GEVKQP
+PVJKUOCPWCNVJGRTQVQEQNUVTWEVWTGKUGZRNCKPGFKPUKORNGVGTOUCPFGZCO
RNGU CTG IKXGP QH VJG WUG QH VJG 2/%4 KPUVTWEVKQP YJGP EQPVTQNNKPI
1/410FGXKEGUWUKPIUVCPFCTFU[UVGORTQVQEQNU(QTFGVCKNUQPVJGRTQVQ
EQNUVJGOGVJQFQHOQFKH[KPIVJGUVCPFCTFU[UVGORTQVQEQNUCPFVJGOGVJQF
QH ETGCVKPI PGY UGSWGPEGU TGHGT VQ VJG
%:2TQVQEQN 1RGTCVKQP /CPWCN
9
2TQVQEQN5VTWEVWTG
2TQVQEQNUEQPUKUVQHUGPFTGEGKXGUGSWGPEGU#UGSWGPEGEQPUKUVUQHUVGRU
6JGUGUVGRUECPDGTGRGCVGFQTVJG[ECPDGDTCPEJGFQTGPFGFFGRGPFKPI
QPVJGTGURQPUGUTGEGKXGF#UVGREQPUKUVUQHCEQOOCPFUGPFTGEGKXGOGU
UCIGURTQEGUUKPITGUWNVUCPFVJGPGZVRTQEGUUYJKEJFGRGPFUQPVJGRTQ
EGUUKPITGUWNVU
# RTQVQEQN EQPUKUVU QH RTQEGUUKPI UGSWGPEGU UWEJ CU TGCFKPI VJG RTQEGUU
XCNWGHQTC6GORGTCVWTG%QPVTQNNGTHQTCIGPGTCNRWTRQUGGZVGTPCNFGXKEG#
UGSWGPEG EQPUKUVU QH C ITQWR QH UVGRU GCEJ QH YJKEJ EQPUKUVU QH C UGPF
TGEGKXGEQPVTQN EQOOCPF UGPFTGEGKXG OGUUCIG RTQEGUUKPI TGUWNV CPF C
PGZVUVGRVJCVFGRGPFUQPVJGRTQEGUUKPITGUWNVU
(QTGZCORNGYKVJCUGSWGPEGVJCVTGCFUVJGRTQEGUUXCNWGHQTC6GORGTCVWTG
%QPVTQNNGTVJGUGSWGPEGUGPFUVJGUGPFOGUUCIGHQTVJGEQPPGEVGF6GORGT
CVWTG %QPVTQNNGT C EJCTCEVGT UVTKPI KP YJKEJ VJG 2TQEGUU 8CNWG 4GCF EQO
OCPF KU KPUGTVGF DGVYGGP VJG JGCFGT CFFTGUU CPF VJG EJGEM EQFG
VGTOKPCVQTCPFTGEGKXGUVJGTGEGKXGOGUUCIGCEJCTCEVGTUVTKPIKPYJKEJVJG
2TQEGUU8CNWG4GCFEQOOCPFTGURQPUGKUKPUGTVGFDGVYGGPVJG JGCFGT
CFFTGUUCPFVJGEJGEMEQFGVGTOKPCVQT
Send/receive
sequence
Example: Reading the process values
for a Temperature Controller
Transmission of process value reading message and
reception of response message
Step 0
Messages
Step 1
Protocol
Serial
Communications Unit
(CS/CJ Series)
SEND
(send)
RECV
(receive)
RS-232C or
RS-422A/485
General-purpose external device
Send message (Example: PROCESS VALUE READ command)
Header Address Send data
Check
code
Terminator
Receive message (Example: Response)
CPU Unit
Serial Communications Board
(CS Series only)
RX00
RX01
Header Address Send data
Check
code
Terminator
Command
…
…
Содержание CJ1W-SCU41
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