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Appendix BUsing Modems
157
DM 6645
0001 Hex
Mode setting
1:1 Link area
CTS control setting
Standard
communications
conditions
According to DM 6646
settings
DM 6646
0003 Hex
Baud rate
Data length
Stop bits
Parity
Unit No.
9,600
7
1
Even
0
Bits/s
Bits
Bits
DM 6647
0000 Hex
Transmission delay 0 10 ms
Set a unit number between 0 and 31. Other items must be set exactly as shown above.
Modem Settings
This section describes example modem settings. Perform an equivalent setup by referring to the user’s manual for
your modem.
Note 1. For the modem at the PC, always store the settings in the nonvolatile memory in the modem.
2. In this section, the procedure for storing the settings in the nonvolatile memory in the modem is de-
scribed. This procedure does not necessarily have to be performed for the modem at the computer. If,
however, the settings are not stored in the nonvolatile memory, the modem will need to be set up using
AT commands from the communications software each time a communications procedure is started.
Setting Items
The items shown in the following table must be always set.
Other setting items differ according to the telephone line type, modem type, and so on.
Set each item according to your system as described for specific modems.
Item Setting details
Baud rate 2,400, 4,800, 9,600, or 19,200 bps
Data bits 7 bits
Parity Even
Stop bit 1 bit
Data error correction and data
compression
Data error correction enabled
Data compression disabled
MNP class 4, or V.42, etc.
Flow control Disabled (CS/RS control disabled and Xon/Xoff
control disabled)
Automatic reception Enabled (at PC)
ER signal Always ON
Fixed terminal line speed mode Disabled
Abort timer Set to 10 minutes (example value)