3. SETTING FOR COMMUNICATION
IMCD06-E2
16
3.7 Notes under communication
(1) If polling is made by specifying the identifier of the function which is not added to the controller,
the controller sends [EOT]. In addition, if selecting is made, the controller sends [NAK].
(2) When the communication parameter was changed, always turn on the power again. Otherwise, no
communication is performed by using the changed value.
(3) Send/receive timing
The controller requires the following processing times during data send/receive.
Polling procedure
Time (ms)
MIN TYP MAX
Response send time after calling [ENQ] receive 1.5 2.0 3.0
Response send time after acknowledgment [ACK] receive 1.5 2.0 3.5
Response send time after negative acknowledge [NAK]
receive
1.0 1.5 3.0
Response send time after BCC send 0.7 1.0
* Data-link is terminated sending [EOT], if no response within about 3 sec after BCC send.
Selecting procedure
Time (ms)
MIN TYP MAX
Response send time after BCC receive 2.0 3.0 4.0
Response wait time after acknowledgment [ACK] send 0.7 1.0
Response wait time after negative acknowledge [NAK] send 0.7 1.0
* Response wait time is the time when the interval time is set to 0 ms.
Procedure details
Procedure details
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