Siemens SIMATIC ET 200SP HA User Manual

8.3 Communication
8.3.1 Notes on communication with HART
Reference is made to communication with HART in the following.
HART communication
With enabled HART operation, the analog module independently sends HART commands to the
connected 󹪝eld devices. This always occurs alternately on a channel-speci󹪝c basis with any
pending external HART commands that arrive via the command interface of the module.
• HART command (Page 83)
• HART command interface (Page 95)
Fast mode
When processing HART commands as an SHC sequence (Successive HART Command), HART
processing is reserved for the current channel.
If a HART command with set SHC bit is recognized by the I/O module for a channel, the complete
HART command processing on the I/O module is reserved for this channel for approx. 2 seconds.
There is no processing of internal HART requests, and there is no HART command processing for
all other channels of the I/O module during this time.
SHC sequence (Page 85)
Note
• While a HART channel of the I/O module is processing an SHC sequence, and thus the
complete HART processing is reserved for this channel, the HART variables of all HART
channels are no longer updated. They remain unchanged in terms of value and quality code.
• HART commands for other channels are not processed and are acknowledged
correspondingly.
Burst mode
The I/O module does not support burst mode. HART commands with set burst bit are ignored and
are not forwarded to the connected 󹪝eld device.
8.3.2 HART command
De󹪝nition
HART commands are used to set the con󹪝gurable properties of HART 󹪝eld devices (HART
parameters). HART responses are used to read out the HART parameters.
HART function
8.3 Communication
F-AI 8xI 2-/4-wire HART HA
Equipment Manual, 09/2021, A5E50557845-AA 83

Siemens SIMATIC ET 200SP HA Specifications

General

Category	I/O Systems
System	SIMATIC ET 200SP HA
Mounting	DIN rail
Protection Rating	IP20
Communication Protocol	PROFINET
Redundancy	Yes
Hot Swapping	Yes
Modularity	Modular
Power Supply	24 V DC
Temperature Range	-40 to 70 °C
Product Type	Distributed I/O
Number of I/O modules	Up to 64
Redundancy Type	system redundancy
Operating Temperature	-40 to 70 °C
Storage Temperature	-40 to 70 °C
Relative Humidity	5% to 95% (non-condensing)
Vibration Resistance	IEC 60068-2-6
Shock Resistance	According to IEC 60068-2-27
Mounting Type	DIN rail

Summary

Security information

Product overview

Properties of I/O module

Details the properties and features of the F-AI 8xI 2-/4-wire HART HA I/O module.

Parameters/address space

Module/channel parameters

Details module/channel specific parameters affecting module or channel configuration.

Explanation of the module/channel parameters

Provides detailed explanations for key module and channel parameters.

Address space

Details the allocation of input and output address space for the I/O module.

Applications of the F-I/O module

Application case 1: SIL3/Cat.3/PLd, 2-wire transmitter, 1oo1

Details wiring and parameter assignment for SIL3/Cat.3/PLd, 2-wire transmitter, 1oo1 application.

Application case 1a: SIL3/Cat.3/PLd, 2-wire transmitter, 1oo1 (high availability)

Details wiring and parameter assignment for redundant SIL3/Cat.3/PLd, 2-wire transmitter, 1oo1.

Application case 2: SIL3/Cat.3/PLd, 4-wire transducer, 1oo1

Details wiring and parameter assignment for SIL3/Cat.3/PLd, 4-wire transducer, 1oo1 application.

Application case 2a: SIL3/Cat.3/PLd, 4-wire transmitter, 1oo1 (high availability)

Details wiring and parameter assignment for redundant SIL3/Cat.3/PLd, 4-wire transmitter, 1oo1.

Application case 3: SIL3/Cat.4/PLe, 2- or 4-wire transducer, 1oo2

Details wiring and parameter assignment for SIL3/Cat.4/PLe, 2/4-wire transducer, 1oo2 application.

Application case 3a: SIL3/Cat.4/PLe, 2- or 4-wire transmitter, 1oo2 (high availability)

Application case 4: SIL3/Cat.4/PLe, 2- or 4-wire transmitter, 2oo3

Requirements placed on sensors for fail-safe modules

Outlines specific requirements for sensors used in fail-safe applications.

IO redundancy

Displays, alarms and messages

Interrupts

Diagnostic messages

Explains diagnostic messages, their meanings, causes, and possible remedies.

Maintenance events

HART function

HART system connection

Communication

Technical specifications

Technical specifications

Provides detailed technical data, electrical specifications, and environmental conditions.