Mitsubishi Electric M800VW Series Programming Manual page 630

Plc programming

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M800V/M80V Series PLC Programming Manual (2/2)

14 PLC Help Function

14.10 Arbitrary Reverse Run

 After the forward run has completed to the block where the reverse run had started, the movement continues to execute the

remaining machining programs that had been automatically stopped. If the "Single block" signal is ON, the movement stops

at each block end.

 The "Automatic operation "pause" command" (*SP) signal and the "Single block" (SBK) signal are available in the forward

 If the following signals are turned ON during the forward run, NC resets the whole automatic operation.

- "NC reset 1" signal (NRST1)

- "NC reset 2" (NRST2)

- "Reset & rewind" (RRW)

Feedrate (F) in the reverse/forward run

The reverse/forward run applies the feedrate specified with F command in the normal operation. Cutting feed override, rapid

traverse override and dry run can be used on the F command.

G01 X** Y** F100

G01 X** Y** F500

G01 X** Y** F100

M command in the reverse/forward run

If any M command is given at the reverse run start and later on, NC does not output the "M code data" signal (R504 to R511)

or the "M function strobe" (MFn) signal.

In the forward run, M code data is output according to the program. Then the "M function strobe" signal is turned ON. Note

that only the last one M command is output when the several M commands are given to a block. Note also that no M

command is output from the M command block where the forward run has started.

No M code output during the reverse run

IB-1501668-B

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