30
80395G_MHW_GFX4_09-2010_ENG
4.1 “AUTOBAUD SERIAL 1” sequence
Function
Adapt the serial communication speed and parity of the GFX4
modules to the connected supervision terminal or PLC.
Green LED L1 “STATUS” mentioned in the procedure
can vary its behavior based on parameter Ld.1, which
is set to a default value of 16.
Procedure
1) Connect the serial cables for all modules on the network to
serial 1 and to the supervision terminal.
2) Set the rotary switch on the GFX4 modules to be installed,
or on all modules present in case of first installation, to
position “0+0”.
3) Check that the green “STATUS” LEDs flash at high
frequency (10Hz).
4) The supervision terminal must transmit a series of generic
“MODBUS” read messages to the network.
5) The procedure is over when all of the green L1 “STATUS”
LEDs on the Geflex modules flash at a normal frequency
(2Hz) (if parameter 197 Ld.1 = 16 as default).
The new speed parameter is saved permanently in each
GFX4; therefore, the “AUTOBAUD SERIAL 1” sequence does
not have to be run at subsequent power-ups.
When the rotary switch is turned, the green
“STATUS” LED stays on steadily for about 6 seconds,
after which it resumes normal operation and saves
the address.
4.2 “AUTONODE PORT 1” sequence
INSTALLATION OF
SERIAL NETWORK 1
ModBus
SETTING
THE NODE
ADDRESS
OPERATIVE
FUNCTION
NO
The serial network communication
speed is the same as for GFX4.
?
YES
“AUTOBAUD”
SERIAL 1
SEQUENCE
Green “STATUS” LED
flashes at 10 Hz
YES
GEFLEX S1/S1 are connected
or the “FIELDBUS” PORT 2 is
present.
?
NO
“AUTONODE”
SEQUENCE
Green “STATUS” LED
flashes at 5Hz
Function
Assigning the GFX4/GFXTERMO4 node (ID) address ten to
GEFLEX S1/S2.
The L1 “STATUS” green led mentioned in the
procedure can vary its behaviour according to the Ld.1
parameter which is 16 as default.
Procedure
1) Connect the serial cables to all the module in the serial 1
network, disconnect supervision or GFX-OP terminals.
2) Turn the rotary switches from the set node address to the
position “A+0”.
3) Check that the “STATUS” green led is blinking at an
average frequency (5Hz) for 10 seconds and then that it
returns to normal blinking (2Hz).
4) Turn the rotary switches in the position of the node
address.
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