System Configuration; System Configuration When Performing Data Communication With Target Device - Mitsubishi Electric MELSEC iQ-R Series User Manual

Serial communication module

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System Configuration

This section explains the system configurations when the modem function is used to perform data communication with a

target device via public lines.

System configuration when performing data communication with

target device

The following shows the system configuration examples used for data communications between a target device and CPU

module using the MC protocol/nonprocedural protocol/bidirectional protocol of C24.

Connection example to a target device

Connection example to C24

• The public lines indicated above are compatible with the office telephone system as well.

• For connection to a target device or C24, the digital line (ISDN) can be replaced by the public line.

When connecting via a digital line, a TA (terminal adapter) and a DSU (digital service module) are used instead of a

7 COMMUNICATIONS BY THE MODEM FUNCTION

7.2 System Configuration

Target device

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