750-841 WAGO, 750-841 Datasheet - Page 236

• Manufacturer Part Number: 750-841
• Description: CONTR.ETHERNET TCP/IP 10/100MBIT
• Manufacturer: WAGO

Specifications of 750-841

• Rohs Compliant: YES
• No. Of Digital Inputs: 10
• No. Of Digital Outputs: 10

228 •
Process Data Architecture for MODBUS/TCP
Specialty Modules
AS-interface Master Module
750-655
The length of the process image of the AS-interface master module can be set
to fixed sizes of 12, 20, 24, 32, 40 or 48 bytes.
It consists of a control or status byte, a mailbox with a size of 0, 6, 10, 12 or
18 bytes and the AS-interface process data, which can range from 0 to 32
bytes.
The AS-interface master module has a total of 6 to maximally 24 words data
in both the Input and Output Process Image. Word alignment is applied.
The first Input and output word, which is assigned to an AS-interface master
module, contains the status / control byte and one empty byte.
Subsequently the mailbox data are mapped, when the mailbox is permanently
superimposed (Mode 1).
In the operating mode with suppressable mailbox (Mode 2), the mailbox and
the cyclical process data are mapped next.
The following words contain the remaining process data.
max. 23
Offset
...
0
1
2
3
High Byte
D45
D1
D3
D5
...
-
Byte Destination
Input and Output Process Image
Low Byte
C0/S0
D44
D0
D2
D4
...
Mailbox (0, 3, 5, 6 or 9 words) /
not used
Process data (0-16 words)
Remark
WAGO-I/O-SYSTEM 750
Control/Status
ETHERNET TCP/IP
byte