Table 33: "Long message" characteristics
Characteristic Description
DATA Content of the "long message"
R/W Direction of the "long message" (read/write)
O/N Only for triggering the message: "Long message" mode (with offset/with‐
out offset)
ERR Only for answer to the message: Error indication
D/I "Long message" mode (direct/indirect addressing)
LEN Data length of the "long message" (0/2/4/8 bytes)
ADD Identification/address of the resource for a "long message"
OFF ADD Offset address of the resource for a "long message"
Start Trigger for the transmission of the "long message"
DATA contains all the data to be transmitted during write access to the motor feedback
system. After a read access, DATA contains all the data from the motor feedback sys‐
tem.
Dependent upon the LEN characteristic, separate areas of the DATA register are used.
Table 34: DATA register areas
LEN value Data length DATA register used
0 (00b) 0 bytes No data transfer
1 (01b) 2 bytes PC_BUFFER0
PC_BUFFER1
2 (10b) 4 bytes PC_BUFFER0
PC_BUFFER1
PC_BUFFER2
PC_BUFFER3
3 (11b) 8 bytes PC_BUFFER0
PC_BUFFER1
PC_BUFFER2
PC_BUFFER3
PC_BUFFER4
PC_BUFFER5
PC_BUFFER6
PC_BUFFER7
The R/W "long message" characteristic is used to determine whether a read or write
access is programmed.
Table 35: R/W value for the "long message"
R/W value Direction of the "long message"
0 Write
1 Read
For programmed write access, the data to be transferred must be present in the DATA
characteristic.
The "long message" characteristic O/N determines whether the message is transmitted
with or without an offset address.
Table 36: O/N value for the "long message"
O/N value
"Long message" mode
0 No offset addressing
1 Offset addressing
7 CENTRAL FUNCTIONS
70
T E C H N I C A L I N F O R M A T I O N | HIPERFACE DSL
®
8017595/ZTW6/2018-01-15 | SICK
Subject to change without notice
To Next Page
Loading...
