Bronkhorst IQ+FLOW (till 01-07-2013) User Manual
Page 26
9.17.045
page 26
4.2.3 Disabling micro switch (single-channel versions only)
It is possible to disable the micro-switch on top of the instrument. This can prevent undesired use of this button.
Disabling the micro-switch can be performed with the following parameter:
IOStatus
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned char
RW
0…255
86
114/11
0xF258…0xF259/62041…62042
Bit 3 [7…0] is used to disable the micro switch.
1 = micro switch disabled
0 = micro switch enabled
Procedure to disable the micro switch:
•
Read ‘IOStatus’
•
Add 8 to the read value
•
Write ‘IOStatus’
Procedure to enable the micro switch:
•
Read ‘IOStatus’
•
Subtract 8 from the read value
•
Write ‘IOStatus’
4.2.4 Setting digital output (multi-channel versions only)
The IQ
+
FLOW® multi-channel pc-board is equipped with three digital outputs. The digital outputs can be used for
driving shut-off valves (for instance). The digital outputs can be read or written via the parameter ‘IO Switch Status’.
The parameters can be set as indicated in the value table below. Note that this parameter is channel-independent.
Each output can be accessed via all channels. E.g. by writing this parameter via channel 2, it is possible to open/close a
shut-off valve located at channel 1.
IO Switch Status
Type
Access
Range
FlowDDE
FLOW-BUS
Modbus
Unsigned long
RW
0…7
288
114/31
0xF2F8/62201
Value
Status output 1
Status output 2
Status output 3
0
Off
Off
Off
1
On
Off
Off
2
Off
On
Off
3
On
On
Off
4
Off
Off
On
5
On
Off
On
6
Off
On
On
7
On
On
On