Hart Fast Mode - Siemens SIMATIC ET 200iSP Operating Instructions Manual

If the channels are located on different HART analog modules, you can access a maximum of
6 channel directly with SIMATIC PDM.
Other properties of the ET 200iSP HART analog module
Table 13-32 Properties of the ET 200iSP HART analog module
Secondary master cannot be connected
(Secondary master exclusion)
After a Write Request there is direct feedback on the validity of the
data.
(Application Supported Parameter Check)
Several HART field devices are supplied by means of a single line.
(Multi-Drop Mode)
Communication type with HART, in which the master requests that
the HART field device respond cyclically and continuously to a
predefined HART commend to send (the reading of the measured
variable, for example).
(Burst mode)
HART master cyclically sends a predefined HART command to the
connected HART field device.
(Scan mode)
Use of the compact data format
(Compact HART Message Format)
A HART client sends a sequence of HART commands. No other
client can interrupt this procedure.
(Successive HART Commands mode)
Parameters are stored retentively.
(Parameter Stored Non Volatile)
Automatic deactivation of burst mode
(Burst-Mode Auto Disable)
Maximum data field length
(Data length)
Client management
(Client Management)
13.10.6

HART Fast Mode

Introduction
When HART-Fast-Mode is enabled, the HART electronic modules support the processing of
HART commands as SHC sequence (Succesive HART Command)).
ET 200iSP
Operating Instructions, 11/2017, A5E00247483-07
Properties
Analog electronic modules
13.10 Basics of HART
Explanation
No
Yes
No, analog value =0
No
No
Yes
Yes
No
No
64 bytes (corresponds to 75 bytes
data record in transparent-mes‐
sage-data format)
No, only 1 client per channel
(4 "mailboxes" per module")
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