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PROFIBUS PA
11.2 Projection
SITRANS DA400 for material flow monitoring with protection against explosion
Operating Instructions, 09/2007, A5E00841152-01
91
Format of the digital output values on the device (slot 13, D15):
1 byte
Reserv. Reserv. DO6
DO5
DO4
DO3
DO2
DO1
1 byte
Value status (always 0x80)
Digital output high: -> associated bit = 1
The "condensed_status" of the PROFIBUS Profile 3.01 is used as status.
The following are supported:
Value
Meaning
Comment
0x23
Bad, passive
Associated measurement channel parameter "off"
0x24
Bad, maintenance required
Sensor or signal fault
1)
0x4B
Unsafe, substitute value
Sensor or signal fault
2)
0x4F
Unsafe, initial value
Sensor or signal fault
3)
0x80
Good, no alarm
0x8A
Good, pre-alarm overridden
Only for acoustic channels
0x8E
Good, major alarm overridden
0x84
Update event
For 10 seconds after a change in parameter
0x3F
Bad, functional check
Only for acoustic channels
1)
With the "Fail safe type" object of the associated input-block = 2
2)
With the "Fail safe type" object of the associated input-block = 0 or 1
3)
For the "fail safe type" of the associated input block = 1 if no applicable substitute value is
available.