Endress+Hauser Proline Prosonic Flow 93, Руководство по эксплуатации

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Proline Prosonic Flow 93 PROFIBUS DP/PA Commissioning
Hauser 123
DISPLAY_VALUE module
Any value (IEEE 754 floating point number), including status, can be cyclically transmitted via the
PROFIBUS master (Class 1) directly to the local display using the DISPLAY_VALUE module (slot
10). Display value assignment to the main line, additional line or info line can be configured via the
local display itself or an operating program (e.g. FieldCare).
Output data
Status
The measuring device interprets the status in accordance with PROFIBUS Profile Specification
Version 3.0. The statuses OK, BAD and UNCERTAIN are indicated on the local display by a
corresponding symbol
→
ä
78.
CONTROL_BLOCK module
By means of the CONTROL_BLOCK module (slot 11), the measuring device is able to process
device-specific control variables from the PROFIBUS master (Class 1) in cyclic data transmission
(e.g. switching on positive zero return).
Supported control variables of the CONTROL_BLOCK module
The following device-specific control variables can be activated by changing the output byte
from 0
→
x:
Example (change the output byte)
Byte 1 Byte 2 Byte 3 Byte 4 Byte 5
Displayed value (IEEE 754 floating point number) Status
Module Control variables
CONTROL_BLOCK
0
→
1: Reserved
0
→
2: Positive zero return channel 1 ON
0
→
3: Positive zero return channel 1 OFF
0
→
4: Zero point adjustment channel 1
0
→
5: Reserved
0
→
6: Reserved
0
→
7: Reserved
0
→
8: Channel 1 operation UNIDIRECTIONAL
0
→
9: Channel 1 operation BIDIRECTIONAL
0
→
10 to 15: Reserved
0
→
16: Positive zero return channel 2 ON
0
→
17: Positive zero return channel 2 OFF
0
→
18: Zero point adjustment channel 2
0
→
19 to 21: Reserved
0
→
22: Channel 2 operation UNIDIRECTIONAL
0
→
22: Channel 2 operation BIDIRECTIONAL
!
Note!
The control (e.g. switching on positive zero return) is executed by cyclic data transmission if the output byte switches from
"0" to the bit pattern in question. The output byte must always switch from "0". A switchback to "0" does not have any
effect.
From To Result
0
→
2 Positive zero return for channel 1 is switched on.
2
→
0 No effect
0
→
3 Positive zero return for channel 1 is switched off.
3
→
2 No effect