Omega manual A2400 interfacing a PLC to a leased-line modem

Transparent Mode 10-2

The following examples 1 through 4 illustrate the application of the A2400 in the extended mode of operation. The A2400 in transparent mode allows equipment from various sources to be added to a network of D series modules. However the following rules must apply:

1.half duplex communications.

2.10-bit data format.

3.The equipment must work on a command and response protocol

and that protocol must not interfere with valid D series prompts ($, #) or

the customer programmed prompt of another A2400	module that may
be on the same line.

4.In examples where more than several devices are to be on the same line the devices must have their own channel address.

Example 1. A2400 interfacing a device to a radio or leased-line modem

Figure 10.1 A2400 interfacing a PLC to a leased-line modem.