Profibus Interface; Addresses And Baud Rates; Figure 7-8. S1 Switch On The Mdxii Rear Panel - Advanced Energy MDX II User Manual

Profibus Interface

ADDRESSES AND BAUD RATES

A switch, labeled S1, is located on the rear of the MDXII unit. The S1 switch contains eight
miniature switches ("mini-switches").

Figure 7-8. S1 switch on the MDXII rear panel

Setting Profibus Network Addresses
Use the S1 switch on the rear panel to set the unit's address (see Figure 7-8 on page 7-13).
Allowable addresses are addresses between 0 and 126, selected in hex format.
Use the eight mini-switches to specify the Profibus node "address" of an MDXII unit. Each
MDXII unit in a network must have a unique address.
Note: Some Profibus systems reserve addresses 0 through 3 for masters only.
To enter the unit's address, set the switch positions for binary representation, starting with the
switch on the left and proceeding to the right (descending order of significance). The switches
are numbered 1 through 8. Switch 1 is the most significant bit, and switch 8 is the least
significant bit.
Placing a switch in the 'up' position is the same as indicating "1" binary. The following
example demonstrates switch settings for an address of 12 (decimal):
0000 1100 = 0x0Ch = 12
The zeros indicate the S1 switch is clicked opposite to the "on" side of the DIP, which is the
"down" position.
Note: You cannot use the Profibus host computer to change the MDXII unit's address.
5700262-R Serial Port Connection, Controls and Indicators
MDXII Power Supplies
7-13