OPEN command

OPEN command - FD70

FD70 Configuration and Maintenance Guide

Document code

M212222EN

Revision

Language

English

Product

FD70

Document type

User guide

The OPEN command establishes a maintenance connection to the system.

If you have only 1 serial line, use the open command to change from the DATA mode to the CLI mode. This interrupts measurement data transfer.
If you have 2 serial lines, you can configure one port for data and the other for maintenance (CLI). In that case, there is no need for the open command.
The local Ethernet maintenance connection does not require an open command.

Command:

open [<device type ID>] [<device ID>]

Response:

FD70[-<device ID>] LINE OPENED FOR COMMANDS


Name	Description	Value
Device type ID	Optional device type identifier when multiple types of devices are connected to the same line	FD
Device ID	Optional device identifier (device address) Value * opens device with any address	0 ... 9 A ... Z a ... z *

Examples

If there is only one device on the bus, no device ID is needed.

Command:
```
open
```
Response:
```
FD70 LINE OPENED FOR COMMANDS
0>
```
If there are several devices of the same type on the bus, include the device ID.

Command:
```
open 1
```
Response:
```
FD70 LINE OPENED FOR COMMANDS
0>
```
If there are different types of devices on the bus, include the device type.

Command:
```
open FD 1
```
Response:
```
FD70 LINE OPENED FOR COMMANDS
0>
```
If a device has an ID but it is not known, use the asterisk (*).

Command:
```
open *
```
Response:
```
FD70 LINE OPENED FOR COMMANDS
0>
```

The connection to the specific device is open until the CLOSE command is given or a timeout has elapsed. The timeout is configurable; default is 10 minutes.

Invalid commands, commands addressed to a different device, or commands with invalid parameters do not reset the timeout.