E6581913
15
Inverter → Computer
At time of broadcast communication of the binary mode, returning of data is not executed except for
the inverter to be returned (inverter number 00H) and when the inverter number is not matched.
This is because there will be a risk that the returned data may be deformed.
1) Normal processing
1. 2FH “/” (1 byte) ：Start code in binary mode
2. INV-NO (1Byte) ：Inverter number･･･00H to 3FH
If the inverter number matches up with that specified from the operation panel, data
will be returned from the inverter. If the inverter number does not match, the data will
be judged invalid and no data will be returned.
Communication data will be invalidated and data will not be returned either if the in-
verter number does not match. (Inverter number is considered matched if it is omit-
ted during reception)
3. CMD(1Byte) :‘Y’ (Block communication command [monitoring])
Lowercase letter ‘y’ is during inverter trip or inverter retry.
4. Number of read data groups (1 byte)
: Return the number of data groups to be read (00H to 05H).
5. Write status (1 byte) : Return 00H to 03H.
* Failing to write in the specified parameter in the number of write data groups, set “1”
in the corresponding bit for the parameter failed to write. (See below.)
6. Read data1 - 5 (2 bytes)
: Return according to the number of read data groups. “0000H” is returned as dummy
data if “0” is selected as a parameter.
Read data1: Data selected by f875. Read data2: Data selected by f876.
Read data3: Data selected by f877. Read data4: Data selected by f878.
Read data5: Data selected by f879.
7.SUM(1Byte) : Checksum (Cannot be omitted) 00H to FFH
Lower two digits (1 byte) of total sum from start code of return data to read data.
Example
(When set as follows: f870 = 1 (Communication command 1), f871 = 3 (Frequency command value),
f875 = 1 (Status information 1), f876 = 2 (Output frequency), f877 = 3 (Output current), f878 = 4 (Output
voltage) and f879 = 5 (Alarm information)
Computer → Inverter：2F 58 02 05 C4 00 17 70 D9
Inverter → Computer：2F 59 05 03 00 00 00 00 00 00 00 00 00 00 90 (When parameter is not set)
Inverter → Computer：2F 59 05 00 40 00 00 00 00 00 00 00 00 00 CD CD (When parameter is set)
Inverter → Computer：2F 59 05 00 64 00 17 70 1A 8A 24 FD 00 00 3D (During operation at 60Hz)
(3.5
bytes
Blank)
Start
Code
“/”
INV
No.
CMD
“Y”
Number
of Read
Data
Groups
Write
Status
Read
data1
high
Read
data1
low
Read
data2
high
Read
data2
low
Read
data3
high
Read
data3
low
Read
data4
high
Read
data4
low
Read
data5
high
Read
data5
low
SUM (3.5
bytes
Blank)
Checksum area
Omissible
Number of read data groups x 2 bytes
Bit Position 7 6 5 4 3 2 1 0
Data Type -
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