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80427A_MSW_GFW-ETHERCAT_07-2018_ENG
SELECTION OF ROTARY SWITCHES AND DIP SWITCHES
The hex rotary switches on the GFW indicate the node address of the Modbus/RTU slave network acquired when the
instrument is switched on.
The GFW is factory-set with the rotary switches in the “0” position. It is the customer’s task to put them in the correct
position, considering that ONLY the following combinations apply for EtherCAT:
Node Address E2 E7
1 Rotary X 10=0, Rotary X1=1 Rotary X 10=0, Rotary X1=1 for node 1
2 - Not admitted - Rotary X 10=0, Rotary X1=2 for node 2
3 - Not admitted - Rotary X 10=0, Rotary X1=3 for node 3
4 - Not admitted - Rotary X 10=0, Rotary X1=4 for node 4
The other positions of the rotary switches refer to special functions.
The GFW configuration dip-switches, described in manual /2/ in the chapter “Description of Dip-Switches,” let you define
the instrument’s work mode.
Specifically, when Dip “6” is “ON,” it lets you reset the factory values to “POWER ON.”
AFTER YOU HAVE RESTARTED THE INSTRUMENT WITH FACTORY VALUES, REMEMBER TO RETURN DIP “6”
TO “OFF”�
DIP “7” MUST NECESSARILY BE “OFF” AND THE ROTARIES IN POSITION 01!
BEHAVIOR OF COMMUNICATION CARD LEDS AT POWER-UP
E2:
The communication card has two 2-color (green, red) LEDs, H4 and H6, which light in the following sequence during
power-up:
• H4 red and H6 red, ON for 1 second
• H4 green and H6 green, ON for 1 second
• H4 red and H6 red, ON for 1 second
• H4 green and H6 green, ON for 1 second
• H4 red and H6 red, ON for 1 second
• H4 green and H6 green, ON for 1 second
• H4 and H6m normal operation
E7:
No start-up sequence
