80018C_MSW_2400-2500-Profibus_1209_ENG
Page 3
When the instrument is the last node of the PROFIBUS network you have to terminate the line end by activating
the dip-switch in the module.
In accordance with EN50170, the shielded cable must have special characteristics to guarantee correct
communication between PROFIBUS devices up to 12Mbaud:
Impedance in Ω
135…165
Capacity in pF/m < 60
Loop resistance in Ω/Km
< 110
Nucleus diameter in mm > 0.64
Nucleus section in mm
> 0.34 (AWG22)
By using cables with these characteristics, you can have the following line length:
1200 1200 1200 1200 1000 400 200 100 100 100
GEFRAN S.p.A. supplies cables and PROFIBUS-approved connection systems as accessories.
DESCRIZIONE LED
OFF No communication with Master PROFIBUS
Flash 1000msec "AUTOMATIC BAUDRATE RESEARCH" State
Flash 250msec "WAIT FOR PARAMETRIZATION" State
Flash 50msec "WAIT FOR CONFIGURATION" State
Ignited fixed “DATA EXCHANGE” State
OFF No communication errors
Flash 1000msec "States not possible" Error
Flash 250msec "DP_State not possible" Error
Flash 50msec "WD_State not possible" Error
Ignited fixed Out of order card
OFF “DATA EXCHANGE” State
Ignited fixed
Other operating states
“LINE END”
DIP SWITCH
“NODE ID”
ROTARY SWITCH
x10 x1
x10 x1
“NODE ID”
ROTARY SWITCH
LEDS
(under printed
circuit)
“LINE END”
DIP SWITCH