750-671 [Steppercontroller]
•
49
Process Image
WAGO-I/O-SYSTEM 750
I/O Modules
2.1.2.7.2
Control Byte 0, Status Byte 0
Control byte C0
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0 0
MBX
0 0 0 0 0
Mailbox mode
0: Mailbox
deactivated.
MBX
1: Mailbox
activated.
0 Reserved
Status byte S0
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0 ERR
MBX
X X X X X
Mailbox mode
0: Mailbox
deactivated.
MBX
1: Mailbox
activated.
Error signaling
ERR (Status byte 0, Bit 6) follows the general error bit Error (Status byte 2, Bit 7).
ERR can be enabled via a bit in the configuration table. ERR is not enabled in the default
state. This means that errors will not result in a bit being set.
0: No error present.
ERR
1: Error
present.
X Reserved
Configuration of the control and status bytes C1 ... C3 and S1 ... S3 depends
on the set operating mode; this is described in the associated sections.
