Omron SYSMAC CJ1W-SCU21-V1 User Manual

38
Comparison to Previous Products Section 1-7
Protocol Macro Comparison
Item C200HX/HG/HE CS/CJ
Transmission mode Half-duplex Half or full-duplex
Commands Send only: SEND, receive only:
RECV, or send and receive:
SEND and RECEIVE
Send only: SEND, receive only:
RECV, send and receive: SEND
and RECEIVE, wait: WAIT, clear
reception buffer: FLUSH,
ER-ON: OPEN, and ER-OFF:
CLOSE
WAIT: Progressing to next
process controlled by signal
from CPU Unit.
FLUSH: Clears contents of
reception buffer.
OPEN: Used for modem control.
Keeps ER signal ON even after
end of sequence.
CLOSE: Used for modem
control. Turns OFF ER signal.
Reception buffer (per port) 256 bytes 2.5 Kbytes
Reception buffer flow con-
trol at Board/Unit (RS/CS
or Xon/Xoff)
Start (CTS signal OFF to
request canceling send
from remote device)
200 bytes 2 Kbytes
Clear (CTS signal ON to
request restarting send
from remote device)
At step transition 0.5 Kbytes
Send/receive message
length
Bytes per send 256 bytes max. 1,000 bytes max.
Default: 200 bytes. Setting
range: 200 to 1,000 bytes.
Reception data is removed from
the reception buffer in incre-
ments of the size set here.
Bytes per
receive
For RS/CS
flow,
Xon/Xoff
flow, or
delimiter
control
200 bytes max.
Other 256 bytes max.
Reception message
length when using wild-
card (*) for data length
For RS/CS flow, Xon/Xoff
flow, or delimiter control
200 bytes max. As set above.
Default: 200 bytes
Setting range: 200 to 1,000
bytes.
Other 256 bytes max.
Send/
receive
data stor-
age loca-
tions and
data capac-
ity
Operand
specification
Maximum send data size 127 words max. (not including
word specifying the number of
send words)
250 words max. (including word
specifying the number of send
words)
Maximum receive data
size
127 words max. (not including
word specifying the number of
receive words)
250 words max. (including word
specifying the number of
receive words)
Link word
specification
Area 1 IN 128 words max. total 500 words max. total
(Unit Ver. 1.2 or later supports a
continuous I/O refreshing
(selected in DM Area settings)
in addition to the on-request I/O
refreshing available in earlier
models).)
OUT
Area 2 IN
OUT
Direct speci-
fication (vari-
able)
Max. send or receive
data size
128 words max. (no conversion) 500 words max. (no conversion)

Omron SYSMAC CJ1W-SCU21-V1 Specifications

General

Brand	Omron
Model	SYSMAC CJ1W-SCU21-V1
Category	Network Hardware
Language	English