TM_s-MEXT_ME28relC_00_12_19_EN
Technical manual
TRANSLATION OF THE ORIGINAL INSTRUCTIONS
108
The user terminals are directly connected to the board. Each control board sends, in turn, the network variables to the other control boards in the LAN network. Moreover,
each control board constantly sends display management data to its private user terminal and the shared one.
As there is a fairly large quantity of display management data (especially if graphic symbols are present), one line is entirely reserved (the above-mentioned bus) to
transmitting the variables, and at the most to managing the shared terminal, whilst setting private terminal management on direct connection lines (dedicated) between the
user terminal and the relative control board, so as not to slow down the global transmission speed of the network.
20.2.3
Network configuration
The configuration requires the following assignments.
Unit adddress
Managed terminals
1
11 (private)
32 (shared)
2
12 (private)
32 (shared)
3
13 (private)
32 (shared)
4
14 (private)
32 (shared)
5
15 (private)
32 (shared)
6
16 (private)
32 (shared)
7
17 (private)
32 (shared)
8
18 (private)
32 (shared)
9
19 (private)
32 (shared)
10
20 (private)
32 (shared)
INFORMATION
The control board is supplied with LAN address = 1.
The address may be checked directly on the control board or by means of the user terminal, following the steps indicated under the following sections.
20.2.4
Addressing the control board - From the board
The control board address is displayed by 7-segment screen in the following image:
Display a 7 segmenti per la procedura
di indirizzamento via hardware
Figure 20-2:
Control board addressing
In order to display the current address, press the button on the left of the display briefly (for no more than 2 seconds) using, for instance, the tip of a screwdriver (Ø < 3mm).
After 5 seconds from releasing the button, the address display turns off.
In order to change the board address, follow the process below:
1.
Press the button with a screwdriver for at least 3 seconds. The saved address starts flashing.
2.
Press the button repeatedly, or press and hold it to scroll through automatically, to find the required address.
3.
Wait for at least 10 seconds. The display starts flashing quickly to indicate that the new address has been saved.
In order to cancel the operation, turn off the control within 7 seconds of pressing the button last.
4.
Turn off and restart the EV controller in order to activate the new address.
7 segment display for the addressing procedure using the hardware
