HindlePower AT10.1 series, Руководство по эксплуатации

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HARDWARE
13
If using Modbus protocol, use ASCII mode. RTU mode has tighter timing requirements that
might prevent communications while using the modem. ASCII mode is enabled by
configuration switch S1-4 in the
ON
position. Enable the RS-232 handshaking lines by
setting the configuration switch S1-6 to the
ON
position. Connect the modem to TB11 as
detailed in
Figure 8
. Set the baud rate to 9600 bps by setting the configuration switch S1-7
to the
OFF
position. Set the modem up for the settings listed on the following page.
The telephone cable plugs into a standard analog phone line. This modem will not work with
office digital phone systems. The telephone line needs to be a dedicated analog phone line
similar to most fax machines. Plug in the ac power supply. The host software needs to have
the same protocol and serial parameters as the communications option.
Modem DIP Switch Settings
U.S. Robotics modem product #
USR5686D
(or equivalent)
Switch Position Setting
1 Down Data Terminal Ready override
2 Up Verbal result codes
3 Down Display result codes
4 Up Echo offline commands
5 Up Auto answer on
6 Up Carrier detect normal
7 Down Load factory defaults
8 Down Smart mode
8
20 8 6 5 4 7 2 3
AC POWER
SUPPLY
TO ANALOG
PHONE LINE
AT Series
Communications Module
PC Board (A12)
U.S. Robotics Modem
Product No, USR5686D
(or equivalent product)
Figure 8
Modem Connection