Denso RC5 Specifications download pdf (Page 122)

110

11.6 Coding Sample for Transmission Error Recovery

'!TITLE "<Title>"

PROGRAM sample

DEFPOS lp1(10) 'Local position variable.

DEFINT li1 'Local integer variable.

li1 = 0 'Initialize li1.

WHILE li1 < 10 'Repeat pre-decision.

INPUT #2,lp1(li1) 'Get data on line #2 into

'li1(li1).

com_state #2,I280 'Get communication status into I280.

IF I280 < 0 THEN 'If an error occurs, the value is –1.

PRINT #2,"R" 'Output retry instruction.

ELSE

PRINT #2,"A" 'Output "normal receive".

li1=li1+1

END IF

WEND 'Repeat 10 times.

End

In the coding sample above,

It is assumed that "R" is a retry command that requires the external equipment to

make retry operation and "A" is an acknowledge command for normal data reception.

11.7 Limited Warranty

DENSO WAVE provides the user with the communications function built in the

controller for using the RS-232C extension board. It does not give you any warranty

or technical support for the extension board itself.

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Denso RC5 Specifications Page 122