HMS AnyBus DataTransfer, Руководство по конструкции

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Design Guide
Revision 1.12
1998-08-12
HMS F
IELDBUS
S
YSTEMS
AB Page 15 (35)
•
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 Fieldbus system
00h PDP Profibus-DP
08h IBS InterBus-S
10h LON Lonworks
18h DEV DeviceNet
20h COP CAN open
30h FIP FIP IO
38h MBP Modbus Plus
48h RIO Remote IO
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.
3F8h HIGH BYTE
3F9h LOW BYTE
3FAh HIGH BYTE
3FBh LOW BYTE
Table 4. Motorola mode representation