BRONKHORST EL-FLOW Base Series - Page 22

BRONKHORST®
Page 22 EL-FLOW Base Series Mass Flow Controllers 9.17.061
Change bus-address/MAC-ID and baud rate:
Pressing the switch 5x briefly with intervals of max. 1 second in normal running/operation mode will
trigger the instrument to enter the bus configuration mode.
Within the time-out period of 60 sec. it is possible to start changing the bus-address/MAC-ID of the
instrument (see table below).
Table 7: Procedure for changing bus-address and baud rate
Step
Action
Indication
Time
Handling
1
Set instrument to
“bus config
mode”
both LEDs off
Press switch 5x briefly
2
Set tens of bus-
address
Green LED flashes
0.1 sec on,
0.1 sec off
count-flashes
start when switch
is pressed:
0.5 sec on,
0.5 sec off
time-out:
60 sec
Press switch and count green flashes
for tens of bus-address.
Release when wanted amount has
been count.
Counts up to max. 12 and than starts
at 0 again.
When counting fails, keep switch
pressed and restart counting for next
attempt.
3
Set units of bus-
Address
red LED flashes
0.1 sec on,
0.1 sec off
count-flashes
start when switch
is pressed:
0.5 sec on,
0.5 sec off
time-out:
60 sec
Press switch and count red flashes
for units of bus-address/MAC-ID.
Release when wanted amount has
been count.
Counts up to max. 9 and then starts
at 0 again.
When counting failed, keep switch
pressed and restart counting for next
attempt.
4
Set baud rate of
field bus
communication.
1 = 9600 Baud
2 = 19200 Baud
3 = 38400 Baud
both red and green
LED flashes
0.1 sec on,
0.1 sec off
count-flashes
start when switch
is pressed:
0.5 sec on,
0.5 sec off
time-out:
60 sec
Press switch and count red and green
flashes for baud rate setting.
Release when wanted amount has
been count.
Counts up to max. 3 and than starts
at 0 again.
When counting failed, keep switch
pressed and restart counting for next
attempt.
Note: selection of 0 means: No
change
Instrument returns to normal running/operation mode.
Changes are valid when they are made within the time-out times.
Actual setting can be checked by pressing the switch 3x briefly with intervals of max. 1 sec. for readout
the bus-address/MAC-ID and baud rate.
Note 1:
Value zero will be indicated by a period of 1 sec. off (0.5 sec. off + 0.5 sec. off).
When value zero is wanted, press switch shortly and release it again within 1 sec.
Note 2:
Before each action of flash-counting, the LED(s) to be used for counting will flash in a high frequency.
(Pattern: 0.1 sec on, 0.1 sec off). As soon as the switch is pressed-down, this LED (or both LEDs) will be
off and the counting sequence will start.
Note 3: The parity setting cannot be read or changed using the micro-switch.