WAGO -I/O-SYSTEM 750 Series Manual page 96

96 • Appendix
Mailbox command - Reference
Change AS-Interface slave address (SLAVE_ADDR, 0x0D)
SLAVE_ADDR: Change_Slave_Address
The address of an AS-Interface slave can be changed with this call.
This call is mainly used to add a new AS-Interface slave with the default
address "0" to the AS-Interface. In this case, a change of address is carried out
from "Old AS-Interface slave address" = 0 to "New AS-Interface slave
address".
The change only takes place when the following conditions are fulfilled:
1. An AS-Interface slave with "Old AS-Interface slave address" is present.
2. If the old AS-Interface slave address is not equal to 0, then an AS-Interface
slave with the address "0" must not be connected at the same time.
3. The "New AS-Interface slave address" must be valid.
4. An AS-Interface slave with "New AS-Interface slave address" must not be
present.
Note
When changing the AS-Interface slave address, the AS-Interface slave is
not reset, i.e. the output data for the AS-Interface slave are retained until
new data arrive on the new address.
Byte
B
Byte
Request
7 6 5
2 2 2
1
2 T -
3 - B
4 - B
0 Standard AS-Interface slave or AS-Interface slave with extended addressing mode
in address range A
1 AS-Interface slave with extended addressing mode in address range B
Response
7 6 5
2 2 2
1
2 T
4 3 2 1
2 2 2 2
0x0D
-
Source address
Target address
4 3 2 1
2 2 2 2
0x0D
Result
0
2
0
2
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