Bronkhorst®
Instruction Manual ES-FLOW™
9.17.145E
29
3.3.5
LED indications
•
(green)
Mode/MOD: operation mode indication
•
(red)
Error/NET: error/warning messages
The tables below list the different LED indications:
•
Green
Pattern
Time
Indication
off
continuous
Power-off or program not running
on
continuous
Normal operation mode
short flash
0.1 sec on,
2 sec off
No bus communication, valves are in safe state
blink
0.2 sec on,
0.2 sec off
Special function mode; the instrument is busy performing a special function (e.g.
auto-zero or self-test)
long flash
2 sec on,
0.1 sec off
Configuration mode; on the 5-pin M12 connector, the baud rate is set to 38400 and
the bus type to RS-232 FLOW-BUS (ProPar)
•
Red
Pattern
Time
Indication
off
continuous
No error
on
continuous
No liquid in measuring tube
OR
Pulsating flow rate
OR
Critical error; the instrument needs servicing before it can be used
short flash
0.1 sec on,
2 sec off
FLOW-BUS
Node occupied: re-install instrument
PROFIBUS DP
No data exchange between master and slave (automatic recovery)
Modbus
Data is being received or transmitted
blink
0.2 sec on,
0.2 sec off
FLOW-BUS
Waiting for communication, check communication settings of all
FLOW-BUS devices in the fieldbus setup. Usually the ‘last node
address’ setting of one of the devices is incorrect.
PROFIBUS DP
Not used
Modbus
Not used
long flash
2 sec on,
0.1 sec off
FLOW-BUS
Not used
PROFIBUS DP
Requested parameter not available
Modbus
Not used
•
Green and
•
red (alternating)
Pattern
Time
Indication
slow wink
1 sec on,
1 sec off
Alarm indication; minimum/maximum alarm, power-up alarm, limit reached or batch
size reached
normal wink
0.2 sec on,
0.2 sec off
Wink mode; by sending a command to the
Wink
parameter, the instrument flashes its
LEDs to indicate its physical location
fast wink
0.1 sec on,
0.1 sec off
Selected action started (after releasing the multifunctional switch)
