Siemens FM 458-1 DP User manual

s
Contents, Foreword
Input/output blocks
Communication blocks
Logic blocks
Service-/diagnostic blocks
SIMOLINK blocks
Closed-loop control blocks
Index
Function Blocks
FM 458-1 DP
Manual
Edition 12.2004

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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:
!
DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or
serious injury.
!
WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or
serious injury.
!
CAUTION used with the safety alert symbol indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury.
CAUTION used without safety alert symbol indicates a potentially hazardous situation which, if not
avoided, may result in property damage.
NOTICE 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.
Safety guidelines
Correct usage
Trademarks
Copyright SIEMENS AG 2004 All rights reserved Disclaimer of liability
The reproduction, transmission or use of this document or its
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created by patent grant or registration of a utility model or design,
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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.

Function Blocks - FM 458-1 DP ii
Edition 12.2004
Editions
FM 458-1 DP
Manual
Function Blocks
Edition 12.2004
NOTE 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
1Input/output blocks Edition 12.2004
2Communication blocks Edition 12.2004
3Logic blocks Edition 03.2003
4Service-/diagnostic blocks Edition 03.2003
5SIMOLINK drive coupling Edition 12.2004
6Closed-loop control blocks Edition 12.2003
Overview
(chapter editions)

Function Blocks - FM 458-1 DP iii
Edition 12.2004
Foreword
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: [email protected]m
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.
Purpose of this
Manual
Basic knowledge
required
Validity of the
Manual
Additional support
Training Center

Foreword
iv Function Blocks - FM 458-1 DP
Edition 12.2004
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
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.
STEP 7 option packages
for 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.
Hardware The complete hardware spectrum is described as reference in this Manuals.
Function blocks 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.
Information
overview

Foreword
Function Blocks - FM 458-1 DP v
Edition 12.2004
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: [email protected]
GMT: +1:00
Europe / Africa (Nürnberg)
Authorization
Local time: Mo.-Fr. 8:00 to 17:00
Phone: [phone]
Fax: [phone]
E-Mail: [email protected]
GMT: +1:00
United States (Johnson City)
Technical Support and
Authorization
Local time: Mo.-Fr. 8:00 to 17:00
Phone: [phone]
Fax: [phone]
E-Mail: [email protected]
GMT: -5:00
Asia / Australia (Peking)
Technical Support and
Authorization
Local time: Mo.-Fr. 8:00 to 17:00
Phone: [phone]
Fax: [phone]
E-Mail: [email protected]
GMT: +8:00
Technical Support and Authorization speak generally German and English.
Guide
A&D Technical
Support

Function Blocks - FM 458-1 DP vii
Edition 12.2004
Contents
Foreword ........................................................................................................................................ iii
1Input/output blocks ................................................................................................................ 1-1
1.1 SBM Rotary encoder block ....................................................................................... 1-2
2Communication 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
3Logic 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

Contents
viii Function Blocks - FM 458-1 DP
Edition 12.2004
4Service-/diagnostic blocks .................................................................................................... 4-1
4.1 FMLED Control FM 458-1 DP diagnostics LED ....................................................... 4-1
5SIMOLINK 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
6Closed-loop control blocks ................................................................................................... 6-1
6.1.1 INT_M Modulo integrator for axis cycle correct integration ...................................... 6-1
Index .............................................................................................................................................. I-1

Function Blocks - FM 458-1 DP 1-1
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
EXM
438
EXM
448*)
ITSL*)
SBM xx
*) with SBM2 Module

Input/output blocks
1-2 Function Blocks - FM 458-1 DP
Edition 12.2004
1.1 SBM Rotary encoder block
SBM
hardware address
―
GV AD YPI DI
―
position in increments
encoder type
―
I TYP RPI DI
―
max. increments/revolution
baud rate
―
I BDR Y R
―
normalized speed
resolution
―
I EXP U I
―
revolutions
alarm- or normal FP
―
BO DM QF BO
―
group error message
rated speed
―
R RS YF DW
―
error detection
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
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.
Symbol
Brief description
Mode of operation

Input/output blocks
Function Blocks - FM 458-1 DP 1-3
Edition 12.2004
• INI
as for the "initialization phase“ mode
• OFF
Output QF is set and processing terminated.
AD Hardware address of the SBM2 (initialization input)
TYP Encoder type
TYP = 0 not available
TYP = 1 EQN1325
TYP > 1 incorrect encoder type
(initialization input
default: 1)
BDR Baud rate
BDR = 0 100 kHz
BDR = 1 500 kHz
BDR = 2 1 MHz
BDR = 3 2 MHz
BDR > 3 incorrect baud rate
(initialization input
default: 0)
EXP Resolution in bits
Value range: 16 ≤EXP ≤32
(default: 23)
DM Configure the block in cyclic tasks or interrupt tasks
DM=0 SBM in interrupt tasks
This mode is only practical in conjunction with the alarm-
controlled 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.
(initialization input
default: 0)
RS Rated speed in revolution/min (RS>0) (default: 1.0)
YPI Position in increments (default: 0)
RPI Max. number of increments per revolution
(depending on the input connection EXP)
(default: 0)
Y
RS
RPMmin
encoderrotarythespeedformNormalized (default: 0.0)
U Revolutions (default: 0)
QF Group error message
QF=0 no error, QF=1 for error (if YF≠0)
(default: 0)
YF Error status of the block
YF=0x0000 no error, YF>0x0000 (refer to error statuses)
(default:
16#0000 0000)
I/O

Input/output blocks
1-4 Function Blocks - FM 458-1 DP
Edition 12.2004
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 Not defined: Reserve →Default: 0
0x80000 Not defined: Reserve →Default: 0
Nibble 6-8 Not defined: Reserve →Default: 0
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
Error statuses
Configuringdata

Function Blocks - FM 458-1 DP 2-1
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
• 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
• 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
• 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.
Brief description
Brief description
Brief description

Communication blocks
2-2 Function Blocks - FM 458-1 DP
Edition 12.2004
2.1.4 @PRODP Central block PROFIBUS DP coupling
• 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.
Brief description

Communication blocks
Function Blocks - FM 458-1 DP 2-3
Edition 12.2004
2.2 Kopplung PROFIBUS DP
2.2.1 DPDIAG Diagnostics overview, PROFIBUS DP
DPDIAG
DP module name.connector
―
GV CTS OK BO
―
Diagnostics valid
Enable
―
BO EN DG1 DW
―
Slave diagnostics; bits 0 to 31
DG2 DW
―
Slave diagnostics; bits 32 to 63
DG3 DW
―
Slave diagnostics; bits 64 to 95
DG4 DW
―
Slave diagnostics; bits 96 to 127
DL1 DW
―
Data transfer list; bits 0 to 31
DL2 DW
―
Data transfer list; bits 32 to 63
DL3 DW
―
Data transfer list; bits 64 to 95
DL4 DW
―
Data transfer list; bits 96 to 127
MST BY
―
Master status
ID W
―
Identification number
QTS BO
―
Block status
YTS W
―
Status display
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)
• 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.
Symbol
Brief description
Mode of operation

Communication blocks
2-4 Function Blocks - FM 458-1 DP
Edition 12.2004
CTS Module name.connector of the Profibus-DP interface (Initialization
connection)
EN Block enable
The block is not processed if EN=0; output OK=0 and YTS=1;
the last value is kept at the other outputs
(Default: 1)
OK Diagnostics data valid (Default: 0)
DG1 Overview of which slave signaled diagnostics data. This output is
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".
(Default: 0)
DG2 Overview of which slave had signaled diagnostics data. This
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".
(Default: 0)
DG3 Overview of which slave had signaled diagnostics data. This
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".
(Default: 0)
DG4 Overview of which slave had signaled diagnostics data. This
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".
(Default: 0)
DL1 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 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".
(Default: 0)
I/O

Communication blocks
Function Blocks - FM 458-1 DP 2-5
Edition 12.2004
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".
(Default: 0)
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".
(Default: 0)
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".
(Default: 0)
MST Status of the DP master:
Stop (0x40 ), Clear (0x80) or Operate (0xC0)
(Default: 0)
ID Master identification number:
(0x8037 for EXM448 as Profibus interface, 0x80EB when
using X3 of the FM458-1)
(Default: 0)
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).
(Default: 0)
YTS Detailed status display:
• YTS=0 Æo.k.
• YTS=1 ÆBlock 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)
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.
Configuring data

Communication blocks
2-6 Function Blocks - FM 458-1 DP
Edition 12.2004
2.2.2 DPSLDG Slave diagnostics, PROFIBUS DP
DPSLDG
DP module name. connector
―
GV CTS OK BO
―
Diagnostics valid
Slave address
―
I SLA ST1 BY
―
Status 1, standard diagnostics
Number of device-related
diagnostic bytes
―
I LEN ST2 BY
―
Status 2, standard diagnostics
Enable
―
BO EN ST3 BY
―
Status 3, standard diagnostics
MPA BY
―
Master Profibus address
ID W
―
Slave identification number
D01 DW
―
Diagnostic bytes v, w, x u. y 1)
D59 DW
―
Diagnostic bytes v, w, x u. y 1)
QTS BO
―
Block status
YTS W
―
Status display
1) normally invisible
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
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.
Symbol
Brief description
Note
Mode of operation

Communication blocks
Function Blocks - FM 458-1 DP 2-7
Edition 12.2004
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)
(Initialization connection)
(Default: 3)
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.
(Initialization connection)
(Default: 0, i.e. only
Standard diagnostics, not
device-related diagnostic
bytes)
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.
(Default: 1)
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".
(Default: 0)
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".
(Default: 0)
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".
(Default: 0)
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
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).
(Default: 0)
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).
(Default: 0)
I/O

Communication blocks
2-8 Function Blocks - FM 458-1 DP
Edition 12.2004
YTS Detailed status display:
• YTS=0 Æo.k.
• YTS=1 ÆBlock processing inhibited (EN=0)
• YTS=2 ÆAn 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 ÆThe block has already been configured once for the
slave addressed via SLA
• YTS=4 ÆThe 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".)
(Default: 0)
Computation time [µs] FM458-1 DP 29
Can be inserted online No
Can be configured in Cyclic tasks
Executed in Initialization mode
Normal mode
Special features The function block may only be configured
once for each slave.
Configuring data