Amada MEA-100B, Руководство по эксплуатации, Страница: 81 / 87

MEA-100B
14. External Communication Function
14-13
(7) Timing Chart for Bi-directional Communication
To write settings in the bi-directional communication, be careful of followings.
1) Data is checked if it is within a correct range after received by the MEA-100B .
When correct, the received data is transmitted as it is. During that time, the
READY signal is turned off.
2) When the start signal is input while data is transmitted to the MEA-100B , data
is checked and transmitted after the END signal is output and the READY
signal is turned off so as to given priority to the welding sequence. In this case,
the sequence is executed with the previous welding schedule.
3) When changing schedules in the bi-directional communication, wait until the
READY signal is turned on after transmitting data from the host computer side,
and then move to the next sequence.
4) Items 1) to 3) above are applied when CONTROL is set to 2. When writing
data in the flash memory (when setting CONTROL to 3), the writing time is
added and the time until the READY signal is turned off is extended.
Normal sequence in bi- directional communication
Received data
confirmation time
END
START
Welding sequence
Data reception
transmission
READY
Confirmation data
HOLD
SQZ
When welding starts during communication
Received data
confirmation time
END
READY
START
Welding sequence
Data reception
Confirmation data
transmission
HOLD
SQZ