WAGO I/O-SYSTEM 750 Manual page 33

If the mailbox bit (bit 2
Table 10), the mailbox is masked by the cyclical data field. The masked field
is then no longer valid; however, the non-masked field continues to be up-
dated and may be used. If the mailbox flag is not set, the mailbox is masked
and the cyclical data field is valid. The desired setting is confirmed by mirror-
ing in bit 2
Note
Consider the validity of the data areas in your application program
(WAGO-I/O-PRO CAA).
To activate register communication (see Table 10), bit 2
is set. Resetting this bit switches the register communication off again. The se-
lected setting is mirrored in bit 2
ered with an offset and a size of 2 bytes by the respective cyclic or acyclic
(covered by the mailbox) memory area.
Attention
During register communication, the mailbox and process data are invalid!
In the following Sections 2.1.1.8.1 and 2.1.1.8.3, the different types of com-
munication between Bluetooth
view in Table 11.
Table 11: Overview of types of communication
Type of communication
Process data communication
without mailbox
Process data communication
with mailbox
Register Communication
WAGO-I/O-SYSTEM 750
I/O Modules
5
in the control byte) is set to masked mailbox (see
5
of the status byte.
®
Configuration of the control / status byte
Control byte
Status byte
Control byte
Status byte
Control byte
Status byte
7
of the status byte. The register data is cov-
modules are described. You can find an over-
no bit set (0x00)
no bit set (0x00)
(contains additional diagnostic informa-
tion, see Section 2.1.1.8.1.1)
5
Bit 2 set (0x20)
5 6
Bit 2 and 2 set (0x60)
(contains additional diagnostic informa-
tion, see Section 2.1.1.8.1.1)
7
Bit 2 set (0x80)
7
Bit 2 set (0x80)
(contains additional information, e.g. the
register number, see Section 2.1.1.8.3.1)
I/O Modules • 33
Special Modules
7
in the control byte