Yokogawa Standalone MW100 - Manual (Page 117)

2-29 IM MW100-01E
Installation and W
iring
1
2
3
4
5
App
Index
XON-XON
• Send Data Control
Software handshaking is not performed between the instrument and the computer.
If X-OFF is received from the computer while the instrument is sending data, data
sending stops, and restarts when the next X-ON code is received. CS from the
computer is ignored.
• Receive Data Control
Software handshaking is not performed between the instrument and the computer.
When the used capacity of the instrument’s receive buffer reaches 1537 bytes, an
X-OFF code is sent to the computer, and when the buffer reaches 511 byte, the X-ON
code is sent.
RS = True (fixed)
XON-RS
• Send Data Control
Software handshaking is not performed between the instrument and the computer. If
X-OFF is received from the personal computer while the instrument is sending data,
data sending stops, and restarts when the next X-ON code is received. CS from the
computer is ignored.
• Receive Data Control
Hardware handshaking is not performed between the instrument and the computer.
When the used capacity of the instrument’s receive buffer reaches 1537 bytes, RS is
set to False, and when the buffer reaches 511 byte, RS is set to True.
CS-RS
• Send Data Control
Hardware handshaking is not performed between the instrument and the computer.
If CS becomes False while the instrument is sending data, transmission stops and
restarts when CS becomes True. X-OFF and X-ON from the computer are treated as
data.
• Receive Data Control
Hardware handshaking is not performed between the instrument and the computer.
When the used capacity of the instrument’s receive buffer reaches 1537 bytes, RS is
set to False, and when the buffer reaches 511 byte, RS is set to True.
Connection Examples
SD
RD
RS
CS
SG
SD
RD
RS
SG
• OFF-OFF/XON-XON
PC MW
SD
RD
RS
CS
SG
SD
RD
RS
SG
• XON-RS(XON-RTS)
PC MW
SD
RD
RS
CS
SG
SD
RD
RS
SG
• CS-RS(CTS-RTS)
PC MW
CS
CS
CS
2
3
8
7
5
2
3
8
7
5
2
3
8
7
5
The RS on the PC side and the CS
on the instrument side do not need
to be connected for control.
However, we recommend that they
be connected so that the cable
can be connected in either direction.
Note
• A computer program must be created such that the receive buffers of the instrument and
computer do not become FULL.
• When selecting XON-XON, output data in ASCII format.
2.8 Connecting the RS-232 Interface (/C2 Option)