Mitsubishi FR - S500 Operation at alarm occurrence, Communication error, Program example, 129

(5) Operation at alarm occurrence

			Operation Mode
Fault Location	Description		Communication
			Operation	External Operation
			(RS-485 connector)
	Inverter operation		Stop	Stop
Inverter fault	Communication	RS-485	Continued	Continued
		connector
Communication error	Inverter operation		Stop/continued (*3)	Continued
(Communication from	Communication	RS-485	Stop	Stop
RS-485 connector)		connector

*3: Can be selected using the corresponding parameter (factory-set to stop).

(6) Communication error

Fault Location	Error Message	Remarks
	(Operation panel)
Communication error	OPT	Error code is OPT
(Communication from RS-485 connector)

(7) Program example

To change the operation mode to computer link operation

Program

Line number

10 OPEN"COM1:9600,E,8,2,HD"AS #1

20COMST1,1,1:COMST1,2,1

30ON COM(1)GOSUB*REC

40COM(1)ON

50 D$="01FB10000"

60 S=0

70FOR I=1 TO LEN(D$)

80A$=MID$(D$,I,1)

90A=ASC(A$)

100S=S+A

110NEXT I

120D$=CHR$(&H5)+D$+RIGHT$(HEX$(S),2)

130 PRINT#1,D$

140 GOTO 50

1000 *REC

1010 IF LOC(1)=0 THEN RETURN

1020 PRINT"RECEIVE DATA"

1030 PRINT INPUT$(LOC(1),#1)

1040 RETURN

General flowchart

Initial setting of I/O file

Opening the communication file

ON/OFF setting of circuit control signals (RS, ER)

Interrupt definition for data receive

Interrupt enable Send data setting

Sum code calculation

Addition of control and sum codes Data send

Interrupt data receive

Interrupt occurrence during data receive

2

Line number

10		I/O file initial
to
		setting
40
			1000
50
	Send data processing			Receive data processing
		Data setting
to			Interrupt to		Data import
		Sum code calculation
					Screen display
140		Data send	1040

129