Memory Mapping - HMS Anybus AS-Interface Master How To Configure

5.3

Memory Mapping

The figure below shows the memory mapping of the AS-Interface Master generally.
Note: For the X-gateway the memory mapping will be different depending on if the Control Word, Status
Word and Live List are used. This info will be mapped before the digital I/O data, please see the X-gateway
Interface Addendum for details. The mapping is performed in the same way for both input and output data of
the X-gateway.
Nibble mode
Figure 13 The memory mapping using the auto configuration.
The mapping of the analogue data is shown in the figure below.
Word no. Description
Offset (byte)
0... 1 1
2... 3 2
4... 5 3
6... 7 4
8... 9 5
10... 11 6
12... 13 7
14... 15 8
... ..
246... 247 124
Figure 14 The mapping of the analogue I/O data.
www.anybus.com
Byte mode
Analogue Input Data for slave 1, channel 0
Analogue Input Data for slave 1, channel 1
Analogue Input Data for slave 1, channel 2
Analogue Input Data for slave 1, channel 3
Analogue Input Data for slave 2, channel 0
Analogue Input Data for slave 2, channel 1
Analogue Input Data for slave 2B, channel 0
Analogue Input Data for slave 2B, channel 1
Analogue Input Data for slave 31, channel 3
HMS Industrial Networks AB
How to configure an Anybus AS-Interface Master module
The figure to the left shows the memory
mapping of the AS-Interface Master. The
analogue data will always be mapped after
the digital data.
When extended addressing is used,
for example slaves 2 and 2B,
the analogue data area is shared.
In other words slave 2 and 2B will
use 4 bytes of analogue data each.
SCM-7032-036
Rev 1.02
Page 14 (19)