Download Model 735 Intelligent Display User`s Manual

5.9.1
Networking Basics
When setting up a network, the following points must be observed.
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5.9.2
If your network includes older Intelligent transmitters that support
RS-232 only, set the older devices to PT = N to assure
compatibility with the Model 735/745.
Verify proper operation of each Intelligent device before
installing it in a network.
Set all Intelligent devices to the same baud rate before installing
them in a network.
Each Intelligent device on the network needs to be set to a unique
ID.
RS-232 Loop Networking
Refer to Figure 4. In an RS-232 serial loop network, the transmit output
of the RS-232 host is connected to the receive input of the first device in
the loop. The transmit output of the first device is connected to the
receive input of the next device. The remaining devices are connected
similarly, with their receive input connected to the transmit output of the
previous device, and their transmit output connected to the receive input
of the next device. The transmit output of the last device is connected to
the receive input of the RS-232 host.
The host sends commands to the first device in the loop. If a command is
addressed to that device, the command is carried out; if not, the command
is resent to the next device. Globally addressed commands are carried out
by each device, and are also resent to the next device. When a device
responds to a command, the response is addressed to the host, and is
therefore resent by each device that receives it until it eventually makes it
way to the serial host.
REMOTE OPERATION
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