WAGO -I/O-SYSTEM 750 Series Manual page 23

Mode 2 describes the operating mode with suppressible mailbox.
If the mailbox flag (bit 2
imposed over the cyclical data range. The covered range is then no longer
valid (the range not covered continues to be updated, however, and can
therefore be used). If the mailbox flag is not set, then the mailbox is
suppressed and the cyclical data range becomes valid. The required setting is
acknowledged by mirroring in bit 2
Note
The application program must take into account the validity of the data
ranges.
Mode 2
Process image PI offset
length in bytes
0
1
7
Register data (bit 2 2
in control byte =
3
TRUE)
4
5
6
7
12 byte
8
9
10
11
12
13
14
15
20 byte
16
17
18
19
20
21
24 byte
22
23
24
25
26
27
32 byte
28
29
30
31
32
33
40 byte
...
39
WAGO-I/O-SYSTEM 750
I/O Modules
5
in the control byte) is set, then the mailbox is
Mailbox
5
suppressed (bit 2 Mailbox imposed
5
in control byte = (bit 2 in control byte = TRUE)
FALSE)
n byte mailbox 6 byte mailbox
Control or status byte
Internal use
Flags 1/1A
2/2A 3/3A
4/4A 5/5A
Mailbox
6/6A 7/7A
8/8A 9/9A
10/10A 11/11A
12/12A 13/13A 12/12A
14/14A 15/15A 14/14A
16/16A 17/17A 16/16A
18/18A 19/19A 18/18A
20/20A 21/21A 20/20A
22/22A 23/23A 22/22A
24/24A 25/25A 24/24A
26/26A 27/27A 26/26A
28/28A 29/29A 28/28A
30/30A 31/31A 30/30A
Flags 1B Flags
2B 3B 2B
4B 5B 4B
6B 7B 6B
8B 9B 8B
10B 11B 10B
12B 13B 12B
14B 15B 14B
16B 17B 16B
18B 19B 18B
20B 21B 20B
22B 23B 22B
24B 25B 24B
26B 27B 26B
28B 29B 28B
30B 31B 30B
Empty
750-655 [AS-Interface master module]
5
of the status byte.
10 byte mailbox
Mailbox
13/13A
15/15A
17/17A
19/19A
21/21A 20/20A 21/21A
23/23A 22/22A 23/23A
25/25A 24/24A 25/25A
27/27A 26/26A 27/27A
29/29A 28/28A 29/29A
31/31A 30/30A 31/31A
1B Flags 1B
3B 2B 3B
5B 4B 5B
7B 6B 7B
9B 8B 9B
11B 10B 11B
13B 12B 13B
15B 14B 15B
17B 16B 17B
19B 18B 19B
21B 20B 21B
23B 22B 23B
25B 24B 25B
27B 26B 27B
29B 28B 29B
31B 30B 31B
Process image
12 byte mailbox 18 byte mailbox
Mailbox
Mailbox
24/24A 25/25A
26/26A 27/27A
28/28A 29/29A
30/30A 31/31A
Flags 1B
2B 3B
4B 5B 4B
6B 7B 6B
8B 9B 8B
10B 11B 10B
12B 13B 12B
14B 15B 14B
16B 17B 16B
18B 19B 18B
20B 21B 20B
22B 23B 22B
24B 25B 24B
26B 27B 26B
28B 29B 28B
30B 31B 30B
• 23
5B
7B
9B
11B
13B
15B
17B
19B
21B
23B
25B
27B
29B
31B