Conventional Formats - YASKAWA PROFIBUS-DP SI-P3 Technical Manual

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Conventional Formats


Conventional Formats
The configuration tool of PROFIBUS-DP master sets the input and output data length of SI-P3 from Extended Data 1
(32 bytes), Extended Data 2 (12 bytes), and Basic Data (6 bytes).
Conventional formats have two message types: High-speed I/O Data and MEMOBUS/Modbus message. Set parameter
F6-32 to 1 to use conventional formats.

High-Speed I/O Data
High-speed I/O data is directly transferred between the drive and controller or PLC. When the drive is set for
PROFIBUS-DP communications, the drive Run/Stop and Frequency Reference commands are transferred within 2 ms
after being received by the option.

MEMOBUS/Modbus Message
MEMOBUS/Modbus message data is transferred between the drive and controller or PLC using MEMOBUS/Modbus
messages. All drive parameters and data can be accessed through MEMOBUS/Modbus. The data in this message type is
transferred to the drive after being received and edited by the option and more time is required to return the data to the
master. The master must synchronize the timing of sending and receiving the data by a process called handshaking.
Refer to Handshaking Register on page 32

Memory Maps
The following register maps show the I/O data bytes.

Basic and Extended Register Maps
–
High-speed I/O Data
MEMOBUS/Modbus Data
Output (Master Device to Drive)
Byte
0 Operation Command High Byte
1 Operation Command Low Byte
2 Frequency Reference High Byte
3 Frequency Reference Low Byte
4 Torque Reference/Torque Limit High Byte
5 Torque Reference/Torque Limit Low Byte
<1> Available when F6-06 is set to 1 (Enabled).
Control method availability of this parameter depends on product series.
 1000-Series Drives: Parameter is available in CLV, AOLV/PM, and CLV/PM.
In AOLV/PM, this value is read as the Torque Limit.
 GA500 Drives: Parameter is available in OLV, AOLV/PM, and EZOLV.
This value is read as the Torque Limit.
 GA700, GA800 Drives: Parameter is available in OLV, CLV, AOLV, AOLV/PM, CLV/PM, and EZOLV.
In OLV and EZOLV, this value is read as the Torque Limit.
<2> Unit depends on the setting of o1-03 (Frequency Display Unit Selection). When the drive is operating in V/f Control or OLV/PM, the drive
output frequency becomes the input data.
YASKAWA ELECTRIC SIEP C730600 82D YASKAWA AC Drive Option SI-P3 Technical Manual
for more information.
Basic Data
(6 bytes)
Bytes 0 to 5
–
Table 10 Basic Data Register Map Detail
Description
<1>
<1>
Extended Data 1
(32 bytes)
Bytes 0 to 15
Bytes 16 to 31
Input (Drive to Master Device)
Byte
0 Drive Status High Byte
1 Drive Status Low Byte
2 Motor Speed High Byte
3 Motor Speed Low Byte
4 Output Current High Byte (0.1 A units)
5 Output Current High Byte (0.1 A units)
7 Conventional Formats
Extended Data 2
(12 bytes)
Bytes 0 to 3
Bytes 4 to 11
Description
<2>
<2>
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