Mailbox Process Image - WAGO I/O SYSTEM 750 750-671 Manual

2.1.2.7.4

Mailbox Process Image

The process image appears as follows when the mailbox is activated (C0.5 =
1):
Off-
set
10
11
The individual applications can be set using opcodes.
Opcodes are assigned to different topical areas and are described in the
sections that follow.
WAGO-I/O-SYSTEM 750
I/O Modules
Input Data
0 S0 Status byte S0
1 Reserved
2 MB0 Opcode
3 MB1 Status_Mbx
Reply
4 MB2
Parameter byte 1
Reply
5 MB3
Parameter byte 2
Reply
6 MB4
Parameter byte 3
Reply
7 MB5
Parameter byte 4
8 Reserved
9 S3 Status byte S3
S2 Status byte S2
S1 Status byte S1
750-671 [Steppercontroller]
Output Data
C0 Control byte C0
Reserved
MB0 Opcode
MB1 Control_Mbx
Request
MB2
Parameter byte 1
Request
MB3
Parameter byte 2
Request
MB4
Parameter byte 3
Request
MB5
Parameter byte 4
Reserved
C3 Control byte C3
C2 Control byte C2
C1 Control byte C1
• 51
Process Image