Intelligent Technologies (
IT.
) D77B-DSNAP
Pub. No. MN05004001E
11
September 2002
Set the DeviceNet MAC ID and Baud Rate
The MAC ID and baud can only be set using the DIP switches on the front of the D77B-DSNAP.
A software tool (such as CH Studio) can view the settings for the D77B-DSNAP MAC ID and
baud rate, but cannot be used to modify them.
Refer to the following instructions, figure and table when setting the MAC ID and baud rate.
●
Moving a DIP switch to the right is ON and moving the switch to the left is OFF. The
MAC ID is in binary with the major units numbered to the right of the switch on the side
label. Adding up the major units set to ON determines the MAC ID of the D77B-DSNAP.
Example: To set the MAC ID to 25, start from the top (or 32) and set the switches to OFF, ON,
ON, OFF, OFF, ON (16+8+1=25).
●
The baud rate is set using the configuration switches B0 and B1.
Most significant bit to be at top or left end of switch block.
Figure 8: DIP Switch Setting Example
Table 9: Baud Rate Configuration Switches
B1
B0
Baud
OFF
OFF
125K
OFF
ON
250K
ON
OFF
500K
ON
ON
Not Allowed
To set the DeviceNet MAC ID and baud rate, set the DIP switches
to the desired settings.
The following example is set to MAC ID=25 and Baud 125K.
OFF
ON
Baud
B1
B0
32
16
8
4
2
1
MAC ID