Bronkhorst EL-FLOW Base 2014 - Manual (Page 18)

BRONKHORST HIGH-TECH
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.
3.4.2 Implementation class
The physical and data link layer are implemented conforming to the "basic slave" implementation class
as described in document [2], “MODBUS over Serial Line specification and implementation guide V1.02”.
The following options have been implemented:
Page 18 EL-FLOW Base Series Mass Flow Controllers 9.17.061