Writing Sequences Programs - Mitsubishi Electric A800 Programming Manual

Prior to creating sequence programs
1.7.5

Writing sequences programs

POINT POINT
• Sequence programs can be written in any operation mode (External operation mode, PU operation mode and Network
operation mode). For the operation modes, refer to the Instruction Manual (Detailed) of the inverter.
Check the following points when rewriting the PLC function parameters and sequence programs using FR Configurator2
(Developer):
• The sequence program execution status is in the STOP (SQ signal OFF) (refer to
• The inverter is stopped.
• The communication specifications setting parameters (Pr.117 to Pr.124) are correctly set. Communication with FR
Configurator2 (Developer) is not possible if these parameter setting values are incorrect.
• The PLC series setting and sequence program capacity are correctly set with FR Configurator2 (Developer) parameters.
(Refer to page 11.)
Refer to the FR Configurator2 manual and write sequence programs.
NOTE
• A sequence program cannot be written with its steps specified. The sequence program does not run if written in this way.
(The program outside the specified range is initialized.)
• To read the PLC function parameters and sequence programs from the inverter, such information must be written to the
inverter using FR Configurator2 (Developer) in advance. Always write the PLC function parameters and sequence program at
least once as the inverter does not have valid data.
• There is a limitation on the number of times writing can be done (approximately 100,000 times) as the PLC function
parameters and sequence program are written to the flash memory.
• A program with more than 6k steps (24k bytes) cannot be written.
16
PLC Function
page 14).