
7
CARLO GAVAZZI
CONTROLS
SERIAL COMMUNICATION PROTOCOL
UDM - USC
V1 R1
Page
2.2.2 Configuration
The LSB value (bit 0 ÷ 7) of “Modules” variable specifies which modules are connected to the
instrument (see Tab. 2-3).
Tab. 2-2
Bit Number
Module Type Bit Value Meaning
0,0,0 Module not present
2,1,0 BO R1
0,0,1 Module present
0,0,0 Module not present
2,1,0 BO R2
0,1,1 Module present
0,0,0 Module not present
2,1,0 BO R4
1,1,1 Module present
0 Module not present
3 BO AV
1 Module present
Variable bits:
7 6 5 4 3 2 1 0
| | | | | | | |________ digital output
| | | | | | |
| | | | | | |_____________ digital output
| | | | | |
| | | | | |__________________ digital output
| | | | |
| | | | |________________________ analog output
| | | |
| | | |_____________________________ None
| | |
| | |__________________________________ None
| |
| |_______________________________________ None
|
|____________________________________________ None
The MSB value (bit 8 ÷ 15) of “Modules” variable specifies which type of display is connected to the
instrument (see Tab. 2-4).
Tab. 2-3
Bit
15 14
13
12
Meaning
0 0 0 0 UDM35
1 0 0 0 UDM40
1 1 0 0 USC
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