Chapter 1 Overview
1.4 Data Transfer
CAUTION
•
Wait to receive the response of a previous command
before sending the next command.
If a subsequent command is sent without waiting for the
response of a previous command, communications may not be
successful.
•
When sending commands to the same address,
provide a time lag from when reception of the first
command completes to when the next command is
sent.
If commands are sent continuously, the communication load
may destabilize control.
1. Send to address 1.
Procedure
2. Receive response from address 1.
3. Wait a discrete amount of time as demanded by the type of command
sent in procedure 1. (See * below.)
4. Send to address 1.
* The time lag should be as follows.
For monitor commands
0.02 seconds or less
However, the program mode pattern total time monitor command (PCHK?)
must be processed within 0.1 sec.
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