6.2
Setting Control Bus Interface Card Station
Address
The station address is defined by a combination of a domain number and a station number.
The DIP switches for setting the domain number and the station number are located at the
same position on the printed circuit board of the VF702, as shown in the following figure.
DIP switches
Station number
Domain number
DOMAIN
STATION
SW1
DOM
SW2
STN
Figure 6.2-1 Location of DIP switches on VF702
Set the domain number and station number using the following DIP switches.
0
0
P
P
DOMAIN
LSB
MSB
LSB
MSB
SW1
STATION
SW2
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
1
0
Bit number
Figure 6.2-2 DIP Switches for Station Address Setting
n
Setting the Domain Number
Unless other specified, all bits are set to 0 (OFF) at shipment from the factory.
Domain is a range of stations connected by the single V net. Set the domain number in the
range of 1 to 31. Set the DIP switches as shown in the following table to set the necessary
domain number.
•
Setting DIP switches
0: The switch is flipped down in the following diagram.
1: The switch is flipped up in the following diagram.
Bit 2 and 3 of the DIP switches are always 0.
1
0
MSB: Most Significant Bit (highest-order bit)
LSB: Least Significant Bit (lowest-order bit)
2
1
3
4
5
6
7
8
LSB
MSB
P 0 0
Domain number (5 bits) (An example where the address “Domain Number” 6)
Fixed to 0
Domain number parity (1 bit, odd parity)
Bit number
Figure 6.2-3 DIP Switches for Domain Number Setting
<6.2 Setting Control Bus Interface Card Station Address >
6-3
IM 32Q06C10-31E
4th Edition : Jan.30,2015-00
