GFK-0825F Chapter 8 Datagrams 8-29
8
Set Bus Interface Unit Operating Mode
Subfunction Code: 39 hex
This datagram can be used to set the operating mode of the Genius Bus Interface Unit.
Byte No. Byte Description
0 Mode
1 Mode
This message has two copies of the mode parameter. These copies must be equal for the command
to be accepted by the Bus Interface Unit.
If you disable the networ k , th e BIU sends no inputs and receives n o outputs.

Bytes 0 and 1 (Must Match)

7654 32 10
I/O Scan Enable/Disable (1 = enable, 0 = disable)
Run/Stop Local Programming (FUTURE)
Network Enabled/disabled
Unused (must be 0)
(
0 = enable, 1=disable
)
Set Micro Field Processor Operating Mode
Subfunction Code: 21 hex
This datagram can be used to set the operating mode of a Micro Field Processor in the I/O Station.
Byte Value Description
0 F6 hex Message code
1 18 hex Command code
2 Slot # The slot num ber of the Micr o Field Proces sor
30Reserved
4 0 Offset of the Least Significant Byte of the data
5 0 Offset of the Most Significant Byte of the data
6 4 Data length.
7 47 hex
8 45 hex
9 46 hex
10 0 Code to set Micro Field Processor mode:
0 = Stop/No I/O Mode