APPENDIX
(2) Program example
<Receive read request>
<Read of received data count>
<Read of received data>
<Receive error detection>
<When receive error detected: Read of data reception result>
Changes the receive read request signal into pulses.
Reads the received data count from the communication area of the buffer memory to D1.
Received data acquisition command
Abnormal completion of REMFR instruction
Reads data as many as the received data count from the communication area of the buffer memory to D1.
Normal reception completion
Abnormal completion of REMFR instruction
Turns ON the receive read completion signal.
Abnormal reception completion
Reception result acquisition command
Reads the data reception result of the buffer memory to D8000.
Normal completion of REMFR instruction
Abnormal completion of REMFR 
instruction
Turns ON the receive read completion signal.
Turns OFF the receive read completion signal.
REMARK
When data reception is executed by the bidirectional protocol, the area enclosed by the dotted line shown above must be removed.
Set the intelligent function module switches as indicated below. (Refer to Section 4.5.2.)
Switch No. | Setting value |
Switch 1 | 07C0H |
Switch 2 | 0007H |
App. - 38 | App. - 38 |