Automation Direct D2-DCM, Руководство пользователя

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Setting the Switches
19 19
Data Communications Module, 2nd Edition, 2/03
The D2–DCM station address is set by the two
rotary switches located on one of the D2–DCM’s
circuit boards.
Addresses are in hexadecimal
format with valid addresses from 0 (only used
for the master station) to hexadecimal 5A
. The
addresses do not have to be consecutive, but each
station must have a unique address.
The top rotary switch is used to set the most
significant digit of the HEX address. The bottom
switch is used to set the least significant digit of the
HEX address. For example, to set a D2–DCM
address of HEX 10 (decimal 16), set the top rotary
switch to 1 and the bottom rotary switch to 0. If
you’re using the D2–DCM as a master, make sure
you select address 0.
Even though the D2–DCM address is set in
hexadecimal, it’s a good idea to remember the
decimal equivalent. This is because the decimal
address is used most often. For example, a RLL
communications program, the
Direct SOFT32
Programming Software, and our DSData Server all
use the decimal equivalent of the HEX address. It’s
easy to convert from hex to decimal.
HEX 3C
3 x 16 = 48
0 1 2 3 4 5 6 7 8 9 A B C D E F
10 11 12 13 14 15
C = 12 + = 60 decimal
HEX Format
Example: Switches set for 3C
X10
X1
Warning
: The D2–DCM address switch settings are only read at power up. If you want to
change the address, you must remove the module from the base to access the switches.
Your system can be damaged if you install or remove system components before
disconnecting the system power. To minimize the risk of equipment damage, electrical
shock, or personal injury, always disconnect the system power before installing or removing
any system component.
Address Selection
Switch