X20 system modules • Digital signal processing modules • X20DS1828
X20 system User's Manual 3.10
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4.16.4.10.11.11 Create data field (0x4D)
Master command
Protocol bytes
No.
Name
Information
Master
1
Address
Address of the HIPERFACE slave
2
0x4D
Command byte (create data field)
3
Data field
Number of the data field
4
Status
Access mode for the data field
5
Access code Access code in accordance with the HIPERFACE specification
Slave
Slave response
Protocol bytes
No.
Name
Information
Slave
1
Address
2
0x4D
3
Data field
4
Status
Repeated address, command byte, number of the data field and access mode of the data field (safety)
Master
4.16.4.10.11.12 Read available memory area (0x4E)
Master command
Protocol bytes
No.
Name
Information
Master
1
Address
Address of the HIPERFACE slave
2
0x4E
Command byte (read available memory area)
Slave
Slave response
Protocol bytes
No.
Name
Information
Slave
1
Address
2
0x4E
Repeated address and command byte (safety)
3
Free memory Number of available 16-byte blocks
4
Number of
data fields
Number of data fields
Master
4.16.4.10.11.13 Change access key (0x4F)
Master command
Protocol bytes
No.
Name
Information
Master
1
Address
Address of the HIPERFACE slave
2
0x4F
Command byte (change access key)
3
Code number
4
Old code
5
New code
Safety code from the slave manufacturer
Slave
Slave response
Protocol bytes
No.
Name
Information
Slave
1
Address
2
0x4F
3
Code number
Repeated address, command byte and code number (safety)
Master
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