Mitsubishi Electric A800-E Instruction Manual page 32

Item Size
Monitoring timer 2 bytes Little
Request data Variable Little
Response data
2 bytes Little
length
End code 2 bytes Little
Response data Variable Little
Error information 9 bytes —
Footer — —

The serial No. is given by the external device for message recognition. If a request message with a serial No. is sent, the same serial No. will
also be added on the response message. The serial No. is used when multiple request messages are sent from an external device to the same
inverter.
Endian
Set the waiting time until the inverter completes reading/writing after receiving a request
message from the external device.
When the inverter does not return the response message within the waiting time, the
response message will be discarded.
 H0000: Unlimited (until the execution is completed)
 H0001 to HFFFF (1 to 65535): Waiting time (Unit: 0.25 s)
Recommended setting
Access
destination
Monitoring, operation command, frequency
setting (RAM)
Own station Parameter read/write, frequency setting
(EEPROM)
Parameter clear / all clear
Monitoring, operation command, frequency
setting (RAM)
Other station Parameter read/write, frequency setting
(EEPROM)
Parameter clear / all clear
Specify the command, subcommand, and data that indicate the requested operation. (Refer
to page 32.)
The data length from the end code to the response data (when completed) or error
information (when failed) is stored in hexadecimal. (Unit: byte)
The command processing result is stored. The value "0" is stored for normal completion. The
error code of the access destination (refer to
When the command is completed normally, data such as the read data corresponding to the
command is stored.
The network No. (responding station) (1 byte), station No. (responding station) (1 byte),
destination unit I/O No. (2 bytes), and destination multidrop station No. (1 byte) of the
stations which respond errors are stored for failed completion. Numbers different from those
in the request message may be stored because the information on the station with error
response is stored. The command (2 bytes) and the subcommand (2 bytes) being issued
when an error occurred are also stored.
The footer is used for the TCP/IP and UDP/IP protocols. The footer is added by the external
device before transmission.
(N) Operation via communication and its settings
Description
Recommended setting
page 38) is stored for failed completion.
H1 to H40 (0.25 to 10 s)
H1 to H40 (0.25 to 10 s)
H15 to H40 (5.25 to 10 s)
H2 to H40 (0.5 to 60 s)
H2 to H40 (0.5 to 60 s)
H15 to H40 (5.25 to 60 s)
31
PARAMETER
2
GROUP
N