Omron SYSMAC CS1W-SCB41-V1 Operation Manual page 67

Comparison to Previous Products
Protocol Macro Comparison
Item
Transmission mode
Commands
Reception buffer (per port)
Reception buffer flow con-
trol at Board/Unit (RS/CS
or Xon/Xoff)
Send/receive message
length
Reception message
length when using wild-
card (*) for data length
Send/ Operand
receive specification
data stor-
age loca-
tions and
data capac-
ity
Link word
specification
Direct speci-
fication (vari-
able)
38
Start (CTS signal OFF to
request canceling send
from remote device)
Clear (CTS signal ON to
request restarting send
from remote device)
Bytes per send
Bytes per For RS/CS
receive flow,
Xon/Xoff
flow, or
delimiter
control
Other
For RS/CS flow, Xon/Xoff
flow, or delimiter control
Other
Maximum send data size 127 words max. (not including
Maximum receive data
size
Area 1 IN
OUT
Area 2 IN
OUT
Max. send or receive
data size
C200HX/HG/HE
Half-duplex
Send only: SEND, receive only:
RECV, or send and receive:
SEND and RECEIVE
256 bytes
200 bytes
At step transition
256 bytes max.
200 bytes max.
256 bytes max.
200 bytes max.
256 bytes max.
word specifying the number of
send words)
127 words max. (not including
word specifying the number of
receive words)
128 words max. total
128 words max. (no conversion) 500 words max. (no conversion)
Section 1-7
CS/CJ
Half or full-duplex
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.
2.5 Kbytes
2 Kbytes
0.5 Kbytes
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.
As set above.
Default: 200 bytes
Setting range: 200 to 1,000
bytes.
250 words max. (including word
specifying the number of send
words)
250 words max. (including word
specifying the number of
receive words)
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).)