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2.1.2.7.2
Control Byte 0, Status Byte 0
MBX
0
MBX
ERR
X
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.
WAGO-I/O-SYSTEM 750
I/O Modules
Bit 7
Bit 6
Bit 5
0
0
MBX
Mailbox mode
0: Mailbox deactivated.
1: Mailbox activated.
Reserved
Bit 7
Bit 6
Bit 5
0
ERR
MBX
Mailbox mode
0: Mailbox deactivated.
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.
1: Error present.
Reserved
750-671 [Steppercontroller]
Control byte C0
Bit 4
Bit 3
0
0
Status byte S0
Bit 4
Bit 3
X
X
Process Image
Bit 2
Bit 1
Bit 0
0
0
Bit 2
Bit 1
Bit 0
X
X
• 49
0
X
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