HMS AnyBus DataTransfer Design Manual page 15

• read only (AB-DT ⇒ application)
This register contains the software version in the AB-DT module.
5 Fieldbus type (3F7h)
• read only (AB-DT ⇒ application)
This register indicates the fieldbus system which the AB-DT supports.
Code Function
00h PDP
08h IBS
10h LON
18h DEV
20h COP
30h FIP
38h MBP
48h RIO
Table 3. Supported fieldbus system
The list of supported fieldbus systems is continuously updated.
6 Input length (3F8h - 3F9h)
• read / write during initialisation (application ⇐⇒ AB-DT)
• read only (AB-DT ⇒ application)
The word access is done in Motorola mode. The even byte consists of the upper 8 significant bits (bit 8-15;
bit 10-15 are always 0), the odd byte consists the lower significant bits (bit 0-7).
Any value set by the application that exceeds the maximum value of the fieldbus in use will be adjusted to
maximum number of inputs or outputs by the AnyBus module.
7 Output length (3FAh - 3FBh)
• read / write during initialisation (application ⇐⇒ AB-DT)
• read only (AB-DT ⇒ application)
The word access is done in Motorola mode. The even byte consists of the upper 8 significant bits (bit 8-15;
bit 10-15 are always 0), the odd byte consists the lower significant bits (bit 0-7).
Any value set by the application that exceeds the maximum value of the fieldbus in use will be adjusted to
maximum number of inputs or outputs by the AnyBus module.
Fieldbus system
Profibus-DP
InterBus-S
Lonworks
DeviceNet
CAN open
FIP IO
Modbus Plus
Remote IO
3F8h HIGH BYTE
3F9h LOW BYTE
3FAh HIGH BYTE
3FBh LOW BYTE
Table 4. Motorola mode representation
HMS F S
IELDBUS
AB
YSTEMS
Design Guide
Revision 1.12
1998-08-12
Page 15 (35)