Siemens SIMATIC ET 200SP HA - HART Directory

VALID :=M49.7
BUSY :=M49.1
ERROR :=M49.6
STATUS :=MD100
LEN :=MW104
RECORD :=P#DB81.DBX0.0 BYTE 200
A M 49.1
SPB m3
BE
Block status or error information
Target area in DB81
The program part A M 49.1 to SPB m3 is only required if reading is to occur within a block cycle.
As long as the processing status (byte 0 of DB81) is at 3 (waiting, executing), the response has
not yet been received from the 󹪝eld device. As soon as the processing status changes to greater
than 3, the HART request is 󹪝nished.
With a processing status of 4, the request 󹪝nished without errors and the response data can be
evaluated.
With a processing status of 5, the request also 󹪝nished without errors but without response data
from the 󹪝eld device.
With a processing status of 6 or 7, the request 󹪝nished with errors. You can 󹪝nd more detailed
information in byte 1 of DB81 (see table "HART group fault display") and for a HART protocol error
also in byte 2 of DB81 (see table "HART protocol error during response").
B.3 HART directory
Structure of the HART directory
Byte Meaning Comment
0 Pro󹪝le Revision Number = 2, 0 (Revision 2.0)
1
2 Index of Client Management = 255 (not relevant)
3 Number of Clients = 1
4 Number of Channels = 4
5 Write Read Index O󹪜set = 1 (The response to a job data record is
made with the data record number of the
request data record + 1)
6 Index of HMD Feature Parameter = 149
7 Index of HMD Module Parameter = 255 (not relevant)
8 Start Index of Burst Bu󹪜er Area = 255 (not relevant)
9+n Index of HMD Channel Parameter (Channel
n)
= 131+n
9+n+4 Index of HART Client Channel Message Data = 80+(2*n)
The HART request data records cannot be
con󹪝gured. Data sets starting from data set
number 80 (80, 82, 84, 86) are always used.
HART operating data records
B.3 HART directory
AI 4xI 2-/4-wire HART ISOL HA
80 Equipment Manual, 07/2022, A5E50101523-AB