Settings of the Remote access protocol
This protocol is to be used for remote serial communication and is particularly well adapted to communication systems with severe constraints such as radios and modems. Optionally, the communication driver on the Workbench Studio may take care of dialup if connected to a modem. Press the "..." button for entering parameters in a wizard box. The following parameters are required:
|
Parameter |
Description |
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PC port |
Identifier of the COM port on the PC. If you want to use an internal modem, you need to map it it to a virtual COM port. |
|
Baudrate |
Baudrate |
|
Parity |
Parity: N (none) or E (even) or O (odd) |
|
Stop bits |
Number of stop bits (1 or 2) |
|
Unit number |
This number identifies the remote unit in case of a multidrop network. The default number for a unit on a peer to peer network is 1. The unit number must be a value from 1 to 32767 |
|
Timeout |
Communication timeout in seconds (time for a single "question+answer" exchange) |
|
Trials |
Number of consecutive trials in case of error |
|
Packet size |
The messages transported on the protocol may be up to 1024 bytes. If you select the "small" packet size, then the driver splits messages in frames that do not exceed 255 characters. |
Additionally, you can specify some dialup options:
|
Option |
Description |
|
Dialup |
If this option is checked, the driver dialups the specified number when going Online. |
|
Number |
Number to dial. |
|
Timeout |
Dialup timeout in seconds. |
|
Init. |
Initialization string for setting up the modem. |
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The dial number specified here can be changed when the Workbench Studio establishes the communication. |
Settings of the Remote access protocol |
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IEC 61131-3 Automation platform > IEC 61131-3 Programming Environment > Running the application > Communication parameters > Settings of the Remote access protocol |
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