Siemens FM 458-1 DP User Manual

s

FM 458-1 DP

Function Blocks

Contents, Foreword

Input/output blocks

Communication blocks

Logic blocks

Manual

Edition 12.2004

Service-/diagnostic blocks

SIMOLINK blocks

Closed-loop control blocks

Index

Safety guidelines

DANGER

!

WARNING

!

CAUTION

!

CAUTION

This Manual contains notices which you should observe to ensure your own personal
safety, as well as to protect the product and connected equipment. These notices are
highlighted in the Manual by a warning triangle and are marked as follows according to
the level of danger:

indicates an imminently hazardous situation which, if not avoided, will result in death or
serious injury.

indicates a potentially hazardous situation which, if not avoided, could result in death or
serious injury.

used with the safety alert symbol indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury.

used without safety alert symbol indicates a potentially hazardous situation which, if not
avoided, may result in property damage.

NOTICE

Correct usage

Trademarks

used without the safety alert symbol indicates a potential situation which, if not avoided,
may result in an undesireable result or state.

Note the following:

This device and its components may only be used for the applications described in the
catalog or the technical description, and only in connection with devices or components
from other manufacturers which have been approved or recommended by Siemens.

SIMATIC and SIMADYN D are registered trademarks of Siemens AG.

Third parties using for their own purposes any other names in this document which refer
to trademarks might infringe upon the rights of the trademark owners.

Copyright  SIEMENS AG 2004 All rights reserved

The reproduction, transmission or use of this document or its
contents is not permitted without express written authority.
Offenders will be liable for damages. All rights, including rights
created by patent grant or registration of a utility model or design,
are reserved.

Siemens AG
A&D
Frauenauracher Straße 80
91056 Erlangen

Disclaimer of liability

We have checked the contents of this manual for agreement with

the hardware and software described. Since deviations cannot be
precluded entirely, we cannot guarantee full agreement.
However, the data in this manual are reviewed regularly and any
necessary corrections included in subsequent editions.
Suggestions for improvement are welcomed.

 Siemens AG 2004
Technical data subject to change.

Siemens Aktiengesellschaft

Editions

FM 458-1 DP

Manual

Function Blocks

Edition 12.2004

NOTE

Overview
(chapter editions)

Please note that the current edition of this documentation contains
different editions of the individual chapters. The following overview tells
you when a chapter was revised the last time.

Chapter Edition

Foreword Edition 12.2004
1 Input/output blocks Edition 12.2004
2 Communication blocks Edition 12.2004
3 Logic blocks Edition 03.2003
4 Service-/diagnostic blocks Edition 03.2003
5 SIMOLINK drive coupling Edition 12.2004
6 Closed-loop control blocks Edition 12.2003

Function Blocks - FM 458-1 DP ii
Edition 12.2004

Foreword

Purpose of this
Manual

Basic knowledge
required

Validity of the
Manual

Additional support

Training Center

This Manual explains the principle use and functions of the STEP 7
automation software with the main focus on the appropriate technological
and drive control components T400, FM 458-1 DP, SIMADYN D,
SIMATIC TDC or D7-SYS.

TDC: Technology and Drives Control

This Manual addresses programmers and commissioning engineers.
General knowhow regarding automation technology is required in order to
understand the contents of the Manual

This Manual is valid for SIMATIC D7-SYS Version 6.2.

If you have questions relating to the use of the products described in the
Manual, which cannot be answered here, then please contact your local
Siemens office. You can also call the Hotline:

• Tel.: [phone]

• Fax: [phone]

• e-mail: [e-mail]

Appropriate training courses are available in order to make it easier to get
to know the SIMADYN D automation system. Please contact the central
Training Center in D-Erlangen (I&S IS INA TC):

• Tel.: [phone], -27972

• Fax: [phone]

• Internet: www.siemens.de/sibrain

• Intranet: http://info-tc.erlm.siemens.de/

NOTE

This user part of the Manual does not include any detailed
information/instructions with individual descriptions, but is only intended
to provide a basic procedure. More detailed information on the dialog
boxes in the software and how they are handled is provided in the
appropriate online help.

Function Blocks - FM 458-1 DP iii
Edition 12.2004

Foreword

Information
overview

This manual is part of the overall documentation for the technological and
drive control components T400, FM 458, SIMADYN D, SIMATIC TDC
and SIMATIC D7-SYS:

Title Content

System and
communications
configuring D7-SYS

STEP 7 option packages
for D7-SYS

Hardware The complete hardware spectrum is described as reference in this Manuals.

Function blocks

The first project in a few steps

This Section provides an extremely simple entry into the methodology when
assembling and programming the SIMATIC TDC/SIMADYN D control
system. It is especially conceived for first-time users of a control system.

System software

This Section provides basic know-how about the structure of the operating
system and an application program of a CPU. It should be used to obtain an
overview of the programming methodology, and basis for configuring user
programs.

Communications configuring

This section provides you with basic know-how about the communication
possibilities and how you configure links to the communication partners.

Changeover from STRUC V4.x to D7-SYS

Essential features are included in this section, which have changed over
STRUC V4.x with the introduction of SIMATIC D7-SYS.

Basis software

This section explains the essential use and the functions of the STEP 7
automation software. For first users, it provides an overview on configuring,
programming and commissioning a station.

When working with the basis software, you can access the online help which
provides you with support when it comes to detailed questions on using the
software.

CFC

The CFC language (Continuous Function Chart) allows you to graphically
interconnect blocks.

When working with the particular software, you can also use the online help
which can answer detailed questions regarding the use of the
editors/compiler.

SFC

Configuring sequence controls using SFC (Sequential Function Chart) of
SIMATIC S7.

In the SFC editor, you generate a sequence chart using graphic resources.
The SFC elements of the chart are then positioned according to specific
rules.

These Reference Manuals provide you with an overview of selected function
blocks for the associated technological and drive control components T400,
FM 458-1 DP, SIMADYN D and SIMATIC TDC.

iv Function Blocks - FM 458-1 DP

Edition 12.2004

Foreword

Guide

A&D Technical
Support

As first time user, we recommend that this Manual is used as follows:

• Please read the first section on using the software in order to get to
know some of the terminology and basic procedure.

• Then use the particular sections of the Manual if you wish to carry-out
certain processing steps (e.g. loading programs).

If you have already executed a small project, and have gained some
experience, then you can read individual sections of the Manual in order
to get up to speed about a specific subject.

Can be accessed globally at any time of the day:

World-wide

(Nürnberg)

Technical Support

Local time: 0:00 to 24:00 / 365 days
Phone: [phone]
Fax: [phone]
E-Mail: [e-mail]

GMT: +1:00

Europe / Africa

(Nürnberg)

Authorization

Local time: Mo.-Fr. 8:00 to 17:00
Phone: [phone]
Fax: [phone]
E-Mail: [e-mail]

GMT: +1:00

Technical Support and Authorization speak generally German and English.

United States

(Johnson City)

Technical Support and
Authorization

Local time: Mo.-Fr. 8:00 to 17:00
Phone: [phone]
Fax: [phone]
E-Mail:

GMT: -5:00

[e-mail]

Asia / Australia

(Peking)

Technical Support and
Authorization

Local time: Mo.-Fr. 8:00 to 17:00
Phone: [phone]
Fax: [phone]
E-Mail: [e-mail]

GMT: +8:00

Function Blocks - FM 458-1 DP v
Edition 12.2004

Contents

Foreword ........................................................................................................................................ iii

1 Input/output blocks ................................................................................................................ 1-1

1.1 SBM Rotary encoder block....................................................................................... 1-2

2 Communication blocks.......................................................................................................... 2-1

2.1 Central coupling blocks............................................................................................. 2-1

2.1.1 @CSL2F PROFIBUS FMS coupling central block ................................................... 2-1

2.1.2 @CSL2L PROFIBUS FDL central block................................................................... 2-1

2.1.3 @CSPRO Central block PROFIBUS DP coupling ................................................... 2-1

2.1.4 @PRODP Central block PROFIBUS DP coupling ...................................................2-2

2.2 Kopplung PROFIBUS DP .........................................................................................2-3

2.2.1 DPDIAG Diagnostics overview, PROFIBUS DP....................................................... 2-3

2.2.2 DPSLDG Slave diagnostics, PROFIBUS DP ........................................................... 2-6

2.2.3 DPEVT Alarm information, PROFIBUS DP .............................................................. 2-9

2.2.4 DPPEVT Process alarm information, PROFIBUS DP Symbol............................... 2-12

2.3 FM 458-specific coupling........................................................................................ 2-15

2.3.1 @CPB P-bus, central coupling block...................................................................... 2-15

2.3.2 S7RD_P Reading data from a SIMATIC-CPU (P Bus) .......................................... 2-16

2.3.3 S7WR_P Sending data to a SIMATIC-CPU (P Bus) .............................................. 2-18

2.3.4 BRCV Block-oriented data reception via an S7 coupling ....................................... 2-20

2.3.5 S7STAT S7 CPU operating state ........................................................................... 2-23

2.3.6 S7RD, S7RD_B, S7RD_I, S7RD_D Read from the peripheral area of the S7-

CPU......................................................................................................................... 2-25

2.3.7 S7WR, S7WR_B, S7WR_I, S7WR_D Write into the peripheral area of the S7-

CPU......................................................................................................................... 2-27

2.4 Parameterizing SIMADYN D................................................................................... 2-29

2.4.1 @FMPAR Parameter processing on FM 458-1 DP modules................................. 2-29

2.4.2 CBCONF COMBOARD configuration..................................................................... 2-32

2.4.3 CBRFAW Receiving warnings from a COMBOARD ..............................................2-36

2.4.4 PNAME Parameter names ..................................................................................... 2-38

2.4.5 PSTAT Change enable for parameters ..................................................................2-40

3 Logic blocks ........................................................................................................................... 3-1

3.1 SAV_TR Save FB for NOV_RAM............................................................................. 3-1

3.2 PAS7 Initiate process interrupt at the S7-CPU......................................................... 3-3

Function Blocks - FM 458-1 DP vii
Edition 12.2004

Contents

4 Service-/diagnostic blocks .................................................................................................... 4-1

4.1 FMLED Control FM 458-1 DP diagnostics LED .......................................................4-1

5 SIMOLINK drive coupling ...................................................................................................... 5-1

5.1 @SL SIMOLINK central block ..................................................................................5-1

5.2 SLAV, SLAVE_R SIMOLINK receive block for one actual value..............................5-9

5.3 SLD SIMOLINK delta evaluation.............................................................................5-11

5.4 SLDIS SIMOLINK dispatcher.................................................................................. 5-12

5.5 SLSV, SLSV_R SIMOLINK send block for one setpoint ........................................5-13

5.6 SLSV2, SLSV2R SIMOLINK send block for 2 setpoints.........................................5-15

5.7 SLSVAV SIMOLINK send and receive block for one slave.................................... 5-17

6 Closed-loop control blocks ................................................................................................... 6-1

6.1.1 INT_M Modulo integrator for axis cycle correct integration ...................................... 6-1

Index ..............................................................................................................................................I-1

viii Function Blocks - FM 458-1 DP

Edition 12.2004

1 Input/output blocks

Assignment of the input/output blocks to processor- and peripheral
devices.

Blocks Modules

PM5 PM6 T400 IT41 IT42 EA12 EB11 FM

458

SBM x x

*) with SBM2 Module

EXM

438

EXM

448*)

ITSL*)

Function Blocks - FM 458-1 DP 1-1
Edition 12.2004

Input/output blocks

1.1 SBM Rotary encoder block

Symbol

SBM

hardware address ―GV AD YPI DI―position in increments

alarm- or normal FP ―BO DM QF BO―group error message

encoder type ―I TYP RPI DI―max. increments/revolution

baud rate ―I BDR Y R―normalized speed

resolution ―I EXP U I―revolutions

rated speed ―R RS YF DW―error detection

Brief description

The SBM function block is used to realize the following tasks:

• Initialize the rotary encoder, which is connected at the SBM2 module

• Determine the position and speed from the encoder data

• Error handling when communication errors develop between the

encoder and SBM2 module

Mode of operation

During the initialization phase of the system, the initialization I/O are read
and the appropriate mode set at the SBM2 module. The following
settings are made for the EQN1325 encoder:

• The encoder power supply is set to 5 V

• Number of revolutions to 4096

• Signal periods per revolution 8192

After the mode has been set, the zero position is determined, and the
starting values for the position and the speed output at the connections.

In the standard mode, the block can assume four different statuses:

• NRM
The values read-out from the SBM2 module (position and speed) are
displayed at the block connections. If an error is detected, the block
goes into the ERR error condition.

• ERR
The following errors can occur in operation:

• Encoder is defective or is not connected

• Encoder was disconnected

• Data transfer error for serial communications between the encoder

and SBM2 module

• SBM2 module not available

In the first three cases, the block goes into the "INI“ initialization

status and in the latter case into the "OFF" status.

1-2 Function Blocks - FM 458-1 DP

Edition 12.2004

Input/output blocks

• INI

as for the "initialization phase“ mode

• OFF

Output QF is set and processing terminated.

I/O

AD

TYP

BDR

EXP

DM

RS

YPI

RPI

Y

Hardware address of the SBM2 (initialization input)

Encoder type

TYP = 0 not available
TYP = 1 EQN1325
TYP > 1 incorrect encoder type

Baud rate

BDR = 0 100 kHz
BDR = 1 500 kHz
BDR = 2 1 MHz
BDR = 3 2 MHz
BDR > 3 incorrect baud rate

Resolution in bits
Value range: 16 ≤ EXP ≤ 32

Configure the block in cyclic tasks or interrupt tasks

DM=0 SBM in interrupt tasks
This mode is only practical in conjunction with the alarm­controlled SIMOLINK events (sync interrupt from SLB). Using this
sync interrupt, in this mode, the values of the SBM module are
de-latched. The block should then be configured in the alarm task
started by the same event.

DM=1 SBM in cyclic tasks
If the block is computed in cyclic tasks, then the SBM2 module
register is read-out in the system mode. The contents of the register
are then read-out in the normal mode and the values for the output
connections computed.

Rated speed in revolution/min (RS>0) (default: 1.0)

Position in increments (default: 0)

Max. number of increments per revolution
(depending on the input connection EXP)

RPMmin

encoderrotary the speedform Normalized

RS

(initialization input
default: 1)

(initialization input
default: 0)

(default: 23)

(initialization input
default: 0)

(default: 0)

(default: 0.0)

U

QF

YF

Revolutions (default: 0)

Group error message

QF=0 no error, QF=1 for error (if YF≠0)

Error status of the block

YF=0x0000 no error, YF>0x0000 (refer to error statuses)

(default: 0)

(default:
16#0000 0000)

Function Blocks - FM 458-1 DP 1-3
Edition 12.2004

Input/output blocks

Error statuses

Value Significance

Nibble 1

0x0001 Initialization mode

0x0002 No SBM2 module available

0x0004 SBM2 module is processed from another SBM

0x0008 Encoder defective/not available

Nibble 2

0x0010 Unknown carrier or illegal module code

0x0020 Incorrect hardware address

0x0040 Encoder fault/error

→ Check the hardware (encoder, cable etc.)

0x0080 No voltage or short-circuit

Nibble 3

0x0100 No data transfer from or to the encoder

→ check the hardware (encoder, cable etc.)

0x0200 Erroneous data transfer from or to the encoder

→ check the hardware (encoder, cable etc.)

0x0400 Invalid mode parameterized

0x0800 Invalid encoder parameterized

Nibble 4

0x1000 Invalid speed normalization parameterized

0x2000 Invalid baud rate parameterized

0x4000 Sampling time too high; speed computation not possible

→Sampling time: ≤ 4.0 ms

0x8000 Error for the request to save

Nibble 5

0x10000 Invalid resolution parameterized

0x20000 Function block is not configured in the alarm task

0x40000

0x80000

Nibble 6-8

Not defined: Reserve → Default: 0

Not defined: Reserve → Default: 0

Not defined: Reserve → Default: 0

Configuringdata

Computation time [µs] FM 458-1 DP 13,2

Can be inserted online No

Can be configured in Interrupt tasks

Cyclic tasks

Executed in Initialization mode

Normal mode

Special features Can only be used with an EQN 1325 encoder

1-4 Function Blocks - FM 458-1 DP

Edition 12.2004

2 Communication blocks

2.1 Central coupling blocks

NOTE

Additional information on this group of function blocks, e.g. symbol,
mode of operation, I/O and technical data are provided in the online
help for the particular block.

2.1.1 @CSL2F PROFIBUS FMS coupling central block

Brief description

• the function block initializes and monitors the PROFIBUS FMS

coupling (CS7 and SS5 module).

• the function block may only be configured in the sampling interval

32 ms <= TA <= 256 ms and only in the communications FP
"Transmit". Otherwise, an entry is made in the communications error
field.

2.1.2 @CSL2L PROFIBUS FDL central block

Brief description

• the function block initializes and monitors the PROFIBUS FDL

coupling (CS7 and SS5 module).

• the function block may only be configured in the sampling interval

32 ms <= TA <= 256 ms and only configured in the communications
FP "transmit". Otherwise an entry will be made in the communications
error field.

2.1.3 @CSPRO Central block PROFIBUS DP coupling

Brief description

Function Blocks - FM 458-1 DP 2-1
Edition 12.2004

• the function block initializes and monitors the PROFIBUS DP coupling

(EXM 448/EXM 448-1).

• the function block may only be configured in the sampling interval

32 ms <= TA <= 256 ms . Otherwise an entry is made in the
communications error field.

Communication blocks

2.1.4 @PRODP Central block PROFIBUS DP coupling

Brief description

• the function block initializes and monitors the PROFIBUS DP coupling
at connector X03 on FM 458-1 DP.

• the function block may only be configured in the sampling interval
32 ms <= TA <= 256 ms . Otherwise an entry is made in the
communications error field.

2-2 Function Blocks - FM 458-1 DP

Edition 12.2004

Communication blocks

―

―

―

―

―

―

―

―

2.2 Kopplung PROFIBUS DP

2.2.1 DPDIAG Diagnostics overview, PROFIBUS DP

Symbol

DP module name.connector ―GV CTS OK BO―Diagnostics valid

Brief description

DPDIAG

Enable ―BO EN DG1

DG2

DG3

DG4

DL1

DL2

DL3

DL4

MST BY―Master status
ID W―Identification number
QTS BO―Block status
YTS W―Status display

Slave diagnostics; bits 0 to 31

DW

Slave diagnostics; bits 32 to 63

DW

Slave diagnostics; bits 64 to 95

DW

Slave diagnostics; bits 96 to 127

DW

Data transfer list; bits 0 to 31

DW

Data transfer list; bits 32 to 63

DW

Data transfer list; bits 64 to 95

DW

Data transfer list; bits 96 to 127

DW

The task of the DPDIAG function block is to provide the following
information and data to the user program (i.e. the configured CFC
software):

• System diagnostics (an overview of which slave had signaled

diagnostics)

Mode of operation

• Data transfer list (overview of with which slave data transfer took

place within the PROFIBUS-DP time frame)

• Master status (master-specification information such as the Stop,

Operate and Clear stati)

The PROFIBUS-DP interface is selected using connection CTS.

The function block only enters a communications error for errors, which
are detected during initialization. A communications error cannot be
acknowledged and this function block is only used for diagnostics. This
means, that in normal operation, a communications error is not entered.
Only the cause of the error is signaled at output YTS.

Function Blocks - FM 458-1 DP 2-3
Edition 12.2004

Communication blocks

I/O

CTS

EN

Module name.connector of the Profibus-DP interface

Block enable

(Initialization
connection)

(Default: 1)

The block is not processed if EN=0; output OK=0 and YTS=1;
the last value is kept at the other outputs

OK Diagnostics data valid (Default: 0)

DG1

Overview of which slave signaled diagnostics data. This output is

(Default: 0)

bit-coded. Every bit is assigned to a slave with its Profibus
address.
Bit 3 of the 32 bit is, for example, assigned to the slave with
Profibus address 3.

Comment: The bits 0 up to and including 2 are always 0 as the
associated addresses (0 to 2) should be reserved for the DP
master, for a PG and an OP.

For a more detailed description, refer to the user manual
"FM 458-1 DP", chapter "Configuring", section "PROFIBUS DP
coupling".

DG2

Overview of which slave had signaled diagnostics data. This

(Default: 0)

output
is bit-coded. Every bit is assigned to a slave with its Profibus
address. The bit 0 of the 32-bit word is, for example, assigned to
the slave with Profibus address 32.

For a more detailed description, refer to the user manual
"FM 458-1 DP", chapter "Configuring", section "PROFIBUS DP
coupling".

DG3

Overview of which slave had signaled diagnostics data. This

(Default: 0)

output
is bit-coded. Every bit is assigned to a slave with its Profibus
address. The bit 0 of the 32-bit word is, for example, assigned to
the slave with Profibus address 64.

For a more detailed description, refer to the user manual
"FM 458-1 DP", chapter "Configuring", section "PROFIBUS DP
coupling".

DG4

Overview of which slave had signaled diagnostics data. This

(Default: 0)

output
is bit-coded. Every bit is assigned to a slave with its Profibus
address. The bit 0 of the 32-bit word is, for example, assigned to
the slave with Profibus address 96.

For a more detailed description, refer to the user manual
"FM 458-1 DP", chapter "Configuring", section "PROFIBUS DP
coupling".

DL1

Overview of with which slave data transfer took place. This output

(Default: 0)

is bit-coded. Every bit is assigned to a slave with its Profibus
address. For example, bit 3 of the 32-bit word is assigned to the
slave with Profibus address 3.

For a more detailed description, refer to the user manual
"FM 458-1 DP", chapter "Configuring", section "PROFIBUS DP
coupling".

2-4 Function Blocks - FM 458-1 DP

Edition 12.2004

Communication blocks

DL2

Overview of with which slave data transfer took place. This output
is bit-coded. Every bit is assigned to a slave with its Profibus
address. For example, bit 0 of the 32-bit word is assigned to the
slave with Profibus address 32.

For a more detailed description, refer to the user manual
"FM 458-1 DP", chapter "Configuring", section "PROFIBUS DP
coupling".

DL3

Overview of with which slave data transfer took place. This output
is bit-coded. Every bit is assigned to a slave with its Profibus
address. For example, bit 0 of the 32-bit word is assigned to the
slave with Profibus address 64.

For a more detailed description, refer to the user manual
"FM 458-1 DP", chapter "Configuring", section "PROFIBUS DP
coupling".

DL4

Overview of with which slave data transfer took place. This output
is bit-coded. Every bit is assigned to a slave with its Profibus
address. For example, bit 0 of the 32-bit word is assigned to the
slave with Profibus address 96.

For a more detailed description, refer to the user manual
"FM 458-1 DP", chapter "Configuring", section "PROFIBUS DP
coupling".

MST Status of the DP master:

Stop (0x40 ), Clear (0x80) or Operate (0xC0)

ID Master identification number:

(0x8037 for EXM448 as Profibus interface, 0x80EB when
using X3 of the FM458-1)

QTS Block output QTS is used to display whether the block is operating

error-free (QTS = 1) or was de-activated after a communications
error message was entered (QTS = 0).

YTS

Detailed status display:

• YTS=0 Æ o.k.

• YTS=1 Æ Block processing inhibited (EN=0)

For additional values at YTS, refer to: D7-SYS Online Help "Help
events". (Press the F1 button in the CFC and call the topic
"Help on events" under "CFC for D7-SYS".)

(Default: 0)

(Default: 0)

(Default: 0)

(Default: 0)

(Default: 0)

(Default: 0)

(Default: 0)

Configuring data

Computation time [µs] FM458-1 DP 42,7

Can be inserted online No

Can be configured in Cyclic tasks

Executed in Initialization mode

Normal mode

Special features This function block may only be configured

once for each PROFIBUS communications
module.

Function Blocks - FM 458-1 DP 2-5
Edition 12.2004

Communication blocks

―

―

―

2.2.2 DPSLDG Slave diagnostics, PROFIBUS DP

Symbol

DP module name. connector ―GV CTS OK BO―Diagnostics valid

Number of device-related

Brief description

DPSLDG

Slave address ―I SLA ST1 BY―Status 1, standard diagnostics

I LEN ST2 BY―Status 2, standard diagnostics

diagnostic bytes

Enable ―BO EN ST3 BY―Status 3, standard diagnostics

MPA BY―Master Profibus address
ID W―Slave identification number
D01

D59

QTS BO―Block status
YTS W―Status display

1)

normally invisible

Diagnostic bytes v, w, x u. y 1)

DW

Diagnostic bytes v, w, x u. y 1)

DW

The DPSLDG function block provides diagnostics data from a DP slave
to the user program. This diagnostics data correspond, with the exception
of the maximum possible length, to EN 50170. According to this
Standard, the diagnostics data can be a maximum of 244 bytes long. The
function block supports a maximum of 240 bytes

Note

Mode of operation

On the EXM448, there are restrictions regarding the quantity of
diagnostics data. Only diagnostics data (Standard diagnostics data) is
supplied which the function block DIAPRO supplies.

The consistency of the outputs is not ensured. When new diagnostics
data is received, some of the outputs can have "New" information and
some can still have "old" information.

The PROFIBUS-DP interface is selected using connection CTS.

The function block only enters a communications error for errors, which
are detected during initialization. A communications error cannot be
acknowledged and the function block DPSLDG is only used for
diagnostics. This means, that in normal operation, a communications
error is not entered. Only the cause of the error is signaled at output
YTS.

2-6 Function Blocks - FM 458-1 DP

Edition 12.2004

Communication blocks

I/O

CTS DP module name, connector of the Profibus DP interface (Initialization connection)

SLA

Diagnostics data required from the slave with the appropriate
station number (3 to 123)

LEN Number of the device-related diagnostic bytes; this means the

diagnostics bytes which extend beyond the Standard diagnostics.
Here, a maximum value of 234 may be set. Whether device-related
diagnostics data is available and, if yes, which significance they
have, should be taken from the user documentation of the relevant
DP slave.

EN Block enable. If EN=0, the block is not processed;

output OK=0 and YTS=1, the last value remains at the other
outputs.

OK Diagnostics data valid (Default: 0)

ST1 Status 1 of the diagnostics according to the Standard (byte 1).

For a more detailed description, refer to the user manual
"FM 458-1 DP", chapter "Configuring", section "PROFIBUS DP
coupling".

ST2 Status 2 of the diagnostics according to the Standard (byte 2).

For a more detailed description, refer to the user manual
"FM 458-1 DP", chapter "Configuring", section "PROFIBUS DP
coupling".

ST3 Status 3 of the diagnostics according to the Standard (byte 3).

For a more detailed description, refer to the user manual
"FM 458-1 DP", chapter "Configuring", section "PROFIBUS DP
coupling".

MPA Master Profibus address (byte 4 of the diagnostics according to the

Standard)

ID Identification number of the slave

(bytes 5 and 6 of the diagnosics according to the Standard)

D01

to

D59

Device-related diagnostic bytes; 4 bytes are combined in one
32-bit
word. Bytes 7, 8, 9 and 10 of the diagnostics telegram can be
found

(Initialization connection)
(Default: 3)

(Initialization connection)
(Default: 0, i.e. only
Standard diagnostics, not
device-related diagnostic
bytes)

(Default: 1)

(Default: 0)

(Default: 0)

(Default: 0)

(Default: 0)

in D01.
For a more detailed description, refer to the user manual
"FM 458-1 DP", chapter "Configuring", section "PROFIBUS
DP
coupling".

When data is entered at LEN, this has an influence on the
update
of the outputs. For LEN=0, these outputs are not updated.
For LEN=234, D01 up to and including D59 are updated.

Comment:
Bytes 1 to 6 of a diagnostics telegram for PROFIBUS DP
corresponds to the Standard Diagnostics; bytes from 7 onwards
depend on the particular slave (referred to the particular device).

QTS Block output QTS is used to display whether the block is operating

error-free (QTS = 1) or was de-activated after a communications
error message was entered (QTS = 0).

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(Default: 0)

Communication blocks

YTS Detailed status display:

• YTS=0 Æ o.k.

• YTS=1 Æ Block processing inhibited (EN=0)

• YTS=2 Æ An initialization connection (SLA er LEN) was

changed in cyclic opertion; this change only becomes effective
the next time that the FM458-1 starts

• YTS=3 Æ The block has already been configured once for the
slave addressed via SLA

• YTS=4 Æ The slave, with the address specified at SLA, has not
been configured in the PROFIBUS network.

For additional values at YTS, refer to: D7-SYS Online Help "Help
events". (Press the F1 button in the CFC and call the topic
"Help on events" uncer "CFC for D7-SYS".)

Configuring data

Computation time [µs] FM458-1 DP 29

Can be inserted online No

Can be configured in Cyclic tasks

Executed in Initialization mode

Special features The function block may only be configured

(Default: 0)

Normal mode

once for each slave.

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Communication blocks

―

―

―

―

―

―

―

2.2.3 DPEVT Alarm information, PROFIBUS DP

Symbol

Brief description

DPEVT

Expanded info ―BO EXT OB I―Appropriate S7 alarm OB

STA I―Station
SLO I―Slot
SUB I―Sub-module
SBN I―Sub-network
YO1

YO2

YO3

YO4

YO5

YO6

YO21

QTS BO―Block status
YTS W―Status display

1)

normally invisible

Diagnostic bytes 0, 1, 2 and 3

DW

Diagnostic bytes 4, 5, 6 and 7

DW

Diagnosebytes 8, 9, 10 and 11

DW

Diagnostic bytes 12, 13, 14 and 15

DW

Diagnostic bytes 16, 17, 18 and 19

DW

Diagnostic bytes ...

DW

Diagnostic bytes ...

DW

1)

1)

The DPEVT function block (DP event) provides more detailed information
about a Profibus-DP process or diagnostics alarm. The information/data,
provided at the outputs, correspond to the information/data which a
SIMATIC S7 module also has when processing the appropriate alarm
OBs (e.g. OB40, OB55 etc.).

Mode of operation

When an alarm event is output, all of the values at the outputs are
updated.

When the appropriate alarm occurs, the alarm task configured for this
purpose, is started, Within the alarm task, DPEVT reads-out the alarm
information. A new alarm of the same time is only detected again after
the alarm task has been completed.

When a communications error occurs, the cause is also output at output
YTS and the QTS output is set to "0".

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Communication blocks

I/O

EXT

For EXT=0, only the data/information at outputs Y01
to Y05 is updated.

For EXT=1, in addition, the information/data at outputs Y06 to
Y21 is updated.

OB The number of the appropriate SIMATIC S7 organizational block

(OB) is displayed at this output. In an error-free state, values 40,
55, 56, 57, 82, 83 and 86 are possible here. The actual value
depends on the process alarm configured in the HWConfig for the
particular alarm task.

STA Station address of the slave which had initiated the alarm. Values

of between 1 and 126 are valid values for this address.

SLO Slot of the module which initiated the alarm. Values of between 1

and 244 are valid values for the slot data.

SUB Sub-module of the module which initiated the alarm. Values of

between 1 and 31 are valid values for the sub-module data.
A value of 0 means no sub-module.

SBN Sub-network to which the module, which initiated the alarm, is

connected. Values of between 1 and 255 are valid values for the
sub-network data. The number for the sub-network can be taken
from the properties dialog box in NetPro or HY-Config.

YO1 The first 4 bytes with information about the last alarm event are

available at this output. The actual significance corresponds to
the first byte of the local data of the appropriate S7-OB.
As a whole, the local data comprise 20 bytes; the structuring of
the local data can be taken from the help for the appropriate OB.

YO2 The second 4 bytes with information about the last alarm event

are available at this output.

YO3 The third 4 bytes with information about the last alarm event are

available at this output.

YO4 The fourth 4 bytes with information about the last alarm event are

available at this output.

YO5 The fifth 4 bytes with information about the last alarm event are

available at this output.

Y06
to
Y21

QTS Block output QTS is used to display whether the block is

YTS Detailed status display for additional values at YTS,

You can obtain additional information/data about the alarm, which
goes beyond the local data of the S7-OBs, at these outputs.
The information/data correspond to that which you would obtain if
you would have called the SFB54 "RALRM" within the appropriate
S7-OBs. The outputs are only updated if EXT=1 is set to 1.
Normally, these outputs are switched so that they are invisible,
and, when required, must be first made visible in the CFC, under
the tab "I/O".

operating error-free (QTS = 1) or was de-activated after a
communications error message was entered (QTS = 0).

refer to: D7-SYS Online Help "Help events".
(Press the F1 button in the CFC and call the topic "Help on
events" uncer "CFC for D7-SYS".)

(Default: 0)

(Default: 0)

(Default: 0)

(Default: 0)

(Default: 0)

(Default: 0)

(Default: 0)

(Default: 0)

(Default: 0)

(Default: 0)

(Default: 0)

(Default: 0)

(Default: 0)

(Default: 0)

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Communication blocks

Configuring data

Computation time [µs] FM458-1 DP 23,6

Can be inserted online No

Can be configured in Alarm tasks

Executed in Initialization mode

Normal mode

Special features

The DPEVT may only be configured in an
alarm
task for which one of the following alarm
causes
is configured in HW-Config:

• Process alarm 1 (OB40)

• DPV1 status alarm (OB55)

• DPV1 update alarm (OB56)

• DPV1 manufacturer-specific alarm (OB57)

• Diagnostics alarm (OB82)

• Withdraw/insert alarm (OB83)

• Failure, subrack alarm (OB86)

If this is not the case, DPEVT signals an
appropriate communications error and stops
processing.

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Communication blocks

―

2.2.4 DPPEVT Process alarm information, PROFIBUS DP Symbol

Symbol

Brief description

DPPEVT

STA I―Station
SLOI―Slot
SUB I―Sub-module
SBN I―Sub-network
EVC BY―Event classes and IDs
IOF BY―IO flag
IN BO―Input module
OUT BO―Output module
MDL W―Logical address
PAD

YYR I―Year
YMOI―Month
YDA I―Day
YHR I―Hour
YMII―Minute
YSE I―Seconds
QTS BO―Block state
YTS W―Status display

OB40_POINT_ADDR

DW

The DPPEV (DP process event) provides more detailed information
about the Profibus DP process alarm (OB40 alarm). Contrary to the
DPEVT, only selected information/data is available, but then, in a
conditioned form.

Mode of operation

When an alarm event is output, all of the values at the outputs are
updated.

For a communications error, the cause is additionally output at YTS and
the QTS output is set to "0".

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