ABB 07CR41 Operating Manual page 96

3
Communication
Note:
The default setting is
- Digital area with:
transmit 4 bytes and
-
receive 4 bytes.
-
This is defined by the default combination
KW 00,10 = KW 00,11 = 0.
The configured combination
KW 00,10 = KW 00,11 = 4
has the same result as the default combination.
The combination:
KW 00,10 = KW 00,11 = 100.
Is not allowed (It would mean transmit 0 words and receive 0 words)
If used in the word area, the top 8 channels of the address which are not used may be
occupied by an analog unit, if required.
Changing the system constants takes effect immediately.
• Size of the receiving area of the slave basic unit
Absolute identifier:
Symbolic identifier:
Meaning of the value of the constants :
The slave basic unit can be used at the CS31 system bus in either the digital area or the
word area. It is possible to set the number of bytes or words which are to be sent from the
master basic unit to the slave basic unit.
For use in the digital area:
-
Transmitting: 2...15 bytes
- For use in the word area:
Transmitting: 1...8 words
Default value:
- Range of values:
Changes to these system constants take effect:
on the next warm start or
on the next cold start
Note:
The default setting is
Digital area with:
-
transmit 4 bytes and
-
- receive 4 bytes.
This is defined by the default combination
KW 00,10 = KW 00,11 = 0.
The configured combination
KW 00,10 = KW 00,11 = 4
has the same result as the default combination.
The combination:
KW 00,10 = KW 00,11 = 100.
Is not allowed (It would mean transmit 0 words and receive 0 words)
If used in the word area, the top 8 channels of the address which are not used may be
occupied by an analog unit, if required.
Changing the system constants takes effect immediately.
KW 00,11
SLV_REC
2...15
101...108
4
2...15 and 101...108
6 – 2
Advant Controller AC 31 / Issued: 01.99