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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-350 detects that the {RS-232} button was pressed, the RE-350 will 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-350 will shift its mode after the RE-350 receives an <Accepted> E-response data from the PC.
The RE-350 can not shift its mode to [N
OTIFICATION
] Mode directly. In order to set RE-350 to [N
OTIFICATION
]
Mode, the PC has to give the <Notification> command to the RE-350 while in [O
N
L
INE
] Mode.
2. After the {RS-232} button is pressed and before the mode of the RE-350 is determined, the RE-350 will 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-350
is in this transition, every button, control knob or command from the PC, will be disregarded.