Yaskawa 1000 Series Drive Option - Profibus-DP Technical Manual - Manual (Page 24)

7 Option Data and I/O Maps
24 YASKAWA ELECTRIC SIEP C730600 42B 1000-Series Option SI-P3 Technical Manual
If an error occurs, the option sets the Most Significant Bit (MSB) in the MEMOBUS/Modbus response code to 1 and
returns the error response. The number of data items is set to 02H and an error code is written into the Low Byte of Data
Refer to the MEMOBUS/Modbus Communications chapter in the drive Technical Manual for the details on
MEMOBUS/Modbus error codes.
„ Parameter Settings Using MEMOBUS/Modbus Commands
The written or read data of each parameter is transferred in a hexadecimal value.
Negative values are expressed as a two complement.
Example 1: The frequency reference is 30Hz.
30 Hz/0.01 Hz = 3000 → BB8H
Example 2:–5% is assigned as the bias for terminal FM of multi-function analog output 1.
5/0.1 = 50 → 32H
Converted into a two complement → FFCEH
Example 3:60.00 Hz is assigned for d1-01 (register No.: 0280H).
60.00 Hz/0.01 Hz = 6000 → 1770H
Table 16 Parameter Settings Using MEMOBUS/Modbus Commands
22
Data 2 <1> Data word 2
High Byte
23 Low Byte
24
Data 3 <1> Data word 3
High Byte
25 Low Byte
26
Data 4 <1> Data word 4
High Byte
27 Low Byte
28
Reserved 29
30
31
Handshaking register Refer to Handshaking Register on page 25 for details.
<1> Data is returned only for the read command.
Byte
<1> Depends on the status of the previous data.
<2> Depends on the status of the fault.
Name
Data
Command
Message
Response
Message
Response Message (at
Fault) <2>
16 Function code 10H 10H 90H
17
Starting Register No.
High Byte 02H 02H 00H
18 Low Byte 80H 80H 00H
19 Number of Data Items 02H 02H 02H
20
Data 1
High Byte 17H 00H 00H
21 Low Byte 70H 00H 02H
22
Data 2
High Byte 00H 00H 00H
23 Low Byte 00H 00H 00H
24
Data 3
High Byte 00H 00H 00H
25 Low Byte 00H 00H 00H
26
Data 4
High Byte 00H 00H 00H
27 Low Byte 00H 00H 00H
28
Reserved
00H 00H 00H
29 00H 00H 00H
30 00H 00H 00H
31 Handshaking Register <1> 80H 80H 80H
Byte Name Function