Yaskawa SI-EP3 PROFINET Technical Manual User Manual
Page 32
8 Communication
32
YASKAWA ELECTRIC SIEP C730600 69A 1000-Series Option SI-EP3 Technical Manual
Table 19 Structure of the Read and Write Blocks
Data block contains PROFIdrive specific request or response header.
Table 20 PROFIdrive Request Header
Field(s)
Description
Range
Type
Service Request
or
Response service.
Request (0x00)
Response (0x80)
UI8
Operation
Read or Write operation.
Write (0x08) Read (0x09)
UI8
Block length
Length of the block.
0 to 0xFFFF
UI16
ARUUID
Identifier
- time low
- time mid
- time high and version - clock - node
–
UI32
UI16
UI16
Octet[2]
Octet[6]
API
Application Process Identifier
Device Access Point (0x0000)
UI32
PROFIdrive (0x3A00)
Slot
Slot of the Module Access Point (MAP/PAP)
0x01
UI16
Sub-slot
Sub-slot of the Module Access Point (MAP/PAP)
0x01
UI16
Padding 2
bytes
Index
Index of the Record Data Object
0x0001 to 0x7FFF
0xB02E
UI16
Data length
Length of the data block
0 to 0xFFFFFFFF
UI32
Additional value 1
(response only)
Field for transferring additional data
–
UI16
Additional value 2
(response only)
Field for transferring additional data
–
UI16
Padding
24 bytes for request, 20 bytes for response.
Data block
Used only with write request and read response.
Field(s)
Description
Range
Byte/ Word
Request Reference
Unique identification set by the master. Changed for
each new request.
1 to 255
Byte
Request ID
Request type for the issued block.
Request Parameter (0x01)
Change Parameter (0x02)
Byte
DO-ID
To be set to 0x01.
0 to 255
Byte
No. of
Parameters
Number of parameters that are present in the request.
1
Byte
Attribute
Type of object being accessed.
Value (0x10)
Byte
No. of Elements
Number of array elements accessed or length of string
accessed. Set to 0 if non-array parameters are used.
0, 1 to 234
Byte
Parameter
Index (group)
Address of the PROFIdrive parameter that is being
accessed. Also “1” is allowed by SI-EP3 to access drive
parameters.
Drive parameter group when accessing drive
parameters.
1 to 65535
Word
Subindex (parameter)
<1> Only when Request ID is 0x02 (Change Parameter). The Format, Number of Values, and Value Fields are repeated for other parameters.
Addresses the first array element of the parameter.
Drive parameter number when accessing drive
parameters.
0 to 65535
Word
Format
for details.
–
Byte
Number of Values
1
Byte
Values
The values of the request. In case of odd number of
bytes, a zero byte is appended to ensure the word
structure of the telegram.
Varies based on value
See Format Field
PROFINET_E_conditional.book 32 ページ ２０１５年２月２５日 水曜日 午後５時１７分