User's Manual

7ML19985LT01 SITRANS LR560 (PROFIBUS PA) – OPERATING INSTRUCTIONS Page 141
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F: Communications PA
Acyclic Data
SITRANS LR560 supports up to four simultaneous connections by a Class 2 Master
(C2 connection). It supports one connection by a Class 1 Master (C1 connection).
In order for a Class 1 Master to read parameters from an instrument, it needs to know the
slot and absolute index of the parameter. You can download an application guide
’Reading acyclic data from a Siemens level measuring instrument’ from our website at:
www.siemens.com/LR560
under Support.
To find the slot and index numbers via SIMATIC PDM, go to Help > Communications, and
select the appropriate block from the list. For each parameter, the slot and the relative
index is listed. For example.
Each block has a slot number and an Index Offset value.
To get the absolute index for any parameter, add the Index Offset for the appropriate
block to the relative index for that parameter. The parameter takes the slot number of the
block in which it is located.
For example:
• Parameter Static Revision Number has relative index = 1 and is located on AIFB1.
• It has Absolute Index = 17 (relative index 1 + index offset 16).
• It is located at Slot 1 (the slot number for AIFB 1).
S: 41
Transducer temperature too low. Relocate device and/or raise
process temperature enough to
warm device. Inspect for
temperature-related damage
and contact your local Siemens
representative if repair is
required.
5
(cont’d)
1
AIFB 1
Index Parameter Datatype
1 Static Revision No. UNSIGNED_INTEGER (2)
Block Name Slot Index Offset
Physical block 0 16
Transducer block 0 77
AIFB 1 1 16
AIFB 2 2 16
Acyclic Extended Diagnostics /General Fault Codes (cont’d)
LCD
display
Meaning (cont’d) Corrective Action
Byte
(cont’d)
Bit