YASKAWA P7, User Manual, Page: 226 / 256

Communications D - 12
Broadcast Data
The following table shows the broadcast data. Broadcast data can be written to.
Enter Command
When writing parameters to the Drive from the PLC using Modbus communication, the parameters are temporarily stored in
the constant data area in the Drive. To enable these parameters in the parameter data area, use the Enter command.
There are two types of Enter commands:
1. Enter commands that enable parameter data in RAM
2. Enter commands that write data to EEPROM (non-volatile memory) in the Drive at the same time as enabling data in RAM.
The following table shows the Enter command data. Enter command data can only be written.
The Enter command is enabled by writing 0 to register number 0900H or 0910H.
Table D.6 Broadcast Data
Register
Address
Contents
0001H
Operation signal
Bit 0 Run command 1: Operating 0: Stopped
Bit 1 Reverse operation command 1: Reverse 0: Forward
Bits 2 and 3 Not used
Bit 4 External error 1: Fault (set using H1-01)
Bit 5 Error Fault 1: Reset command (set using H1-02)
Bits 6 to B Not used
Bit C Multi-function digital input terminal S5 input
Bit D Multi-function digital input terminal S6 input
Bit E Multi-function digital input terminal S7 input
Bit F Not used.
0002H Frequency reference 30000/100%
Note: Bit signals not defined in the broadcast operation signals use local node data signals continuously.
Table D.7 Enter Command
Register No. Contents
0900H Write parameter data to EEPROM
0910H Parameter data is not written to EEPROM, but refreshed in RAM only.
IMPORTANT
The maximum number of times you can write to EEPROM using the Drive is 100,000. Do not frequently
execute Enter commands (0900H) written to EEPROM.
The Enter command registers are write-only. Consequently, if reading these registers, the register address
will become invalid (Error code: 02H).