Canon RE-350 manual Function of RS-232 button, LineRequest on Line, LineRequest OFF Line

1.3.4 Procedure for Using the {RS-232} Button

Function of {RS-232} button

By pressing this button, toggles the RE-350's RS232C I/F from active to inactive for communication with the PC or another controller device.

Once the RE-350detects that the {RS-232} button was pressed, the RE-350will send an Event data packet to the PC through the RS232C I/F to tell the PC that the operator is trying to change the mode.

The Event data packet will differ according to the RE-350's current mode.

Current Mode	The Kind of Event-data-packet
OFF	LineRequest ON Line
ON	LineRequest OFF Line
Notification	Request OFF Line

Note:

1.The RE-350will shift its mode after the RE-350receives an <Accepted> E-response data from the PC.

The RE-350can not shift its mode to [NOTIFICATION] Mode directly. In order to set RE-350to [NOTIFICATION] Mode, the PC has to give the <Notification> command to the RE-350while in [ON LINE] Mode.

2.After the {RS-232} button is pressed and before the mode of the RE-350is determined, the RE-350will be in a mode transition. To tell this transition status to the operator, the RE-350's RS-232 LED will blink. While the RE-350is in this transition, every button, control knob or command from the PC, will be disregarded.

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