Siemens SIMATIC S5 User manual

SIEMENS
SIMATIC S5
Positioning Module
1P 247
for Stepper Motors
Manual
., f’
Order No.: 6ES5998-5SB22
Release 02

Contents
Warning
C79000-R8576-C707
Information
Suggestions/Corrections
Reference Manual
C79000-B8576-C707 -02
List of Contents
Notes on Using the Manual
Fundamentals of Positioning
Reference Manual
Hardware
InstructIons
Functions
Reference Manual
COM 247 Communications Software
User’s Guide
Standard Function Blocks FB164 and FB165
User’s Guide
Planning, Installation and Service
Installation and Start-up Guide
Index
6ES5998-5SB22, Release 02
1
2
3
5
6
7
9
10

We have checked the conteots of th!s manual for agreement wtth the The reproductmn, tra”smmslon
or use 01 thts document or IIS con.
hardware and software descr!bed Since devlat!ons cannot be pre. tenfs
IS not perm!tted without express wrtlten author!ly.
eluded
entcrely, we cannel guarantee full agreement However, the Offenders
WIII be Itable for damages All rights, Including rights
data
,. !h, s manual are reww?wed <egularly and any necessary correc. created by patent grant or regmfratmn of a
ut; ltty model or destgn,
tmns Included In subsequent edllmns. Suqgeslsons for improvement are reserved
are welcomed
Techntcal data subfect to chanqe
Copyr#ght a Slemens AG 1990 All Rights Reserved
Siemens Aktiengesellschaft 6ES5998.5SB22
Eleklronlkwerk Karlsruhe
Pr, ”ted in the Fedwal Republ!c of Germany

I . . .
Guidelines for Handling
Electrostatically Sensitive Devices (ESD)
1 What is ESD?
VSLI chips (MOS technology) are used in practically all SIMATIC S5 and TELEPERM M mod-
ules. These VLSI components are, by their nature, very sensitive to
overvottages and thus to
electrostatic discharge:
They are therefore defined as
“Electrostatically
sensitive @vices”
“ESD” is the abbreviation used internationally.
The following warning label on the cabinets,
subracks and packing indicates that electrostatically
sensitive components have been used and that the modules concerned are susceptible to touch:
#k\
\,
AL
ESDS can be destroyed by voltage and energy levels which are far below the level perceptible to
human beings. Such voltages already occur when a component or a module is touched by a
person who has not been electrostatically discharged. Components which have been subjected
to such overvoltage cannot, in most cases, be immediately detected as faulty; the fault occurs
only after a long period in operation.
An electrostatic discharge
- of 3500 V can be felt
of 4500 V can be heard
must take place at a minimum of 5000 V to be seen.
But just a fraction of this voltage can already damage or destroy an electronic component.
The typical data of a component can suffer due to damage, overstressing or weakening caused
by electrostatic discharge; this can result in temporary fault behavior, e.g. in the case of
- temperature variations,
mechanical shocks,
vibrations,
- change of load.
Only the consequent use of protective equipment and careful observance of the precautions for
handling such components can effectively prevent functional disturbances and failures of
ESD
modules.
o s,mn~ AG c7goo0-D80?&cxj3 -01
1

I
.
ESD Guidelines
m
. . .
2 When is a Static Charge Formed?
One can never be sure whether the human body or the material and tools which one is using
are not electrostatically charged.
Small charges of 100 V are very common; these can, however, very quickly rise up to 35000 V.
Exampfes of static charge:
- Wafking on a carpet up to 35000 v
- Walking on a PVC flooring up to 12000 v
- Sitting on a cushioned chair
I@ to 18000 V
- Plastic
desoldenng unit
I@ to 8000 V
- Plastic coffee cup up to 5000 v
- Plastic bags up to 5000 v
- Books, etc. with a plastic binding
Up to 8000 V
3 important Protective Measures against Static Charge
. Most plastic materials are highly susceptible to static charge and must therefore be kept as
far away as possible from
ESDS.
. Personnel who handle ESDS, the work table and the packing must all be carefully grounded.
4 Handling of ESD Modules
One basic rule to be obsewed is that electronic modules should be touched by hand
only if this is necessary for any work required to be done on them. Do not touch the
component pins or the conductors.
Touch components only if
- the person is grounded at all times by means of a wrist strap
or
- the person is wearing special anti-static shoes or shoes with a grounding strip.
Before touching an electronic module, the person concerned must ensure that
(s)he is
not carrying any static charge. The simplest way is to touch a conductive, grounded
item of equipment (e.g. a blank metallic cabinet
p-, water pipe, etc.) before touching
the module.
Modules should not be brought into contact with insulating materials or materials which
take up a static charge, e.g. plastic foil, insulating table tops, synthetic clothing, etc.
Modules should only be placed on conductive surfaces (table with anti-static table top,
conductive foam material, anti-static plastic bag, anti-static transport container).
Modules should not be placed in the vicinity of monitors, TV sets (minimum distance
from screen >10 cm).
O s,emen~ #@ c7goo0-DEo76-C333 -01

I
ESD Guidelines
The diagram below shows the required protective measures against electrostatic discharge.
Standing position
Q n
r%
b
d
e
a
f
\
+
[
f
+
b
\
r
1
c
a
\
Standing/sitting position
aConductive
flccmng
b
Arm=smc table
c
AntMabc shoes
d
Arm-smc coat
e
Grounding wrist strap
f
Grounding common of the cabinets
Sitting position
5Measurements and Modification to ESD Modules
● Measurements on modules may only be earned out under the following conditions:
The measuring equipment is grounded (e.g. via the PE conductor of the power supply
system) or
when electrically isolated measuring equipment is used, the probe must be discharged
(e.g. by touching the metallic casing of the equipment) before beginning measurements.
● Only grounded soldering irons may be used.
6 Shipping of ESt) Modules
Anti-static packing material must always be used for modules and components, e.g. metalized
plastic boxes, metal boxes, etc. for storing and dispatch of modules and components.
If the container itself is not conductive, the modules must be wrapped in a conductive material
such as conductive foam, anti-static plastic bag, alummium foil or paper. Normal plastic bags or
foils should not be used under any circumstances.
For modules with built-in batteries ensure that the conductive packing does not touch or short-
circuit the battery connections; if necessary cover the connections with insulating tape or
material.
@ S,ernens AG C79000-D8076-C333 -01
3

Contents
Contents
1
1.1
1.2
2
2.1
2.2
2.3
2.3.1
2.4
2.5
2.5.1
2.5.1.1
2.5.1.2
2.5.2
2,5.2,1
2.5.2.2
2,5.3
2.5.3.1
2.5.3.2
2.5,3.3
2,5.3.4
2.5.3.5
2.5.3.6
2.5.3.7
2.5.3.8
2,5.3.9
Notes
Notes on Using the Manual
Important Notes on Safety
Fundamentals of Positioning
Introduction
A Brief Introduction to the IP247
Positioning Axes
What is Positioning?
How Does the IP247 Execute a Positioning Job?
Machine Data and their Structure
Machine Data for the Power Unit
Polarity
Pulse Duration
Machine Data for the Steppel Motor
Pulses per Revolution
Number of Excitation Patterns
Machine Data for the plant
Axis Type (Linear or Rotary Axis)
The Linear Axis
The Rotary Axis
Transmission Ratio
Maximum Frequency
Start-Stop Frequency
Rate of Frequency I
ncrease
Range Limits (Software Limit Switches)
Backlash Compensation
2,5,3,1 () The polarity of ”the Hardware Limit Switches
2.5.4
2.5.4.1
2.5.4.2
2.5.4.3
2.5.4.4
2.5.4.5
2.5.4.6
2.5.5
2.5.5.1
2.5.5.2
2.5.6
2.6
2.6.1
2,6.2
2.6.3
2.6.4
Machine Data for Operation
Measurement System
Speeds
Reference Point Synchronized
Reference Point Coordinate
Reference Direction
Target Information from PC is BCD-Coded
Machine Data for Machining Programs
Tool Length Offset
Zero Point Offset
Other Parameters
Machining Programs and their Structure
General
Program Header
Program Statements
The N-function
1-1
1-1
1-4
2-1
2-1
2-2
2-4
2-4
2-6
2-7
2-8
2-8
2-10
2-1o
2-10
2-11
2-11
2-11
2-12
2-13
2-14
2-14
2-15
2-15
2-18
2-19
2-20
2-21
2-21
2-21
2-23
2-23
2-24
2-25
2-26
2-26
2-27
2-28
2-30
2-30
2-31
2-32
2-33
Siemens AG”c79000-B8576-c707-ol
o-1

Contents
2.6.5
The L-Function 2-33
2.6,6 The G-Functions 2-34
2.6.6.1
-GOO: RapidTraverse
2-34
2.6.6.2
-G04: Dwell Time 2-35
2.6.6.3 -G1 O: Flying Change
2-35
2.6.6.4 LoOPS
2-37
2.6.6.5 Direction of Approach to the Target Point with a Rotary Axis
2-38
2,6,6.6 Tool Length Offset
2.6,6.7 Zero Point offset
2.6.6.8 Dimensional Units in Machining Programs
2,6,6.9 ReferencePoint
2.6,6,10 Absolute and Relative Dimensions
2.6.7
2.6.8
2.6.9
2.6.10
2.7
2,7.1
2.7.2
2.7.3
2.7.4
2,7,5
2.7.6
2.7.7
2.8
2.8.1
2.8.2
2.8.3
2.8.4
2.9
3
3.1
3.1.1
3.1.2
3.1.3
3.1.4
3.2
3.2.1
3.2.2
3.3
3.3.1
3.3.2
0-2
TheX-Function
The F-Function
The M-Function
Programming Restrictions and Syntax Diagram
Axis Attributes
Machine Data does not Exist
Measurement System
Reference Point does not Exist
Teach-in On
Reference Point Synchronized
Axis Status “Finished” or “Running”
“PositionReached’i Message
Digital Inputs/Outputs and their Effects
Inputs and Outputs to the Power Unit
The’’ Position Reached” Message
The Digital Inputs for Hardware Limit Switches
External Start/Stop
BASPSignal
Hardware
Technical Description
Mode of Operation
Application
Design
Technical Data
Installation
Inserting and Removing the Module
Connecting the Signal Lines
Operation
Position of the Jumpers and Switches
Setting the Module Address
2-39
2-42
2-46
2-46
2-46
2-47
2-47
2-47
2-50
2-52
2-53
2-53
2-53
2-53
2-53
2-54
2-54
2-54
2-54
2-55
2-56
2-57
2-59
3-1
3-1
3-1
3-3
3-3
3-5
3-8
3-8
3-8
3-9
3-9
3-9
Siemens AG°C79000-B8576 -C70i’-Ol

I
contents
3.3.3
3.3.4
3.3,5
3.4
4
4.1
4.1,1
4.2
4,2,1
4.2.2
4.2.3
4,2,4
4.2.5
4.2.6
4.2.7
4.3
4.3,1
4,3,2
4.3.3
4.3,4
4.3,5
4,3,6
4.3.7
4.3,8
4.3,9
4,3,10
4,3,11
4.3,12
4.3,13
4.3.14
4.3.15
4.3,16
4,3,17
4,3.18
4,3.19
4,3.20
4,3.21
4.3,22
4,3.23
4.4
Connecting Stepper Motor Power Units
Digital Inputs/Digital Outputs
PG Interface 20 mA
Connecting Cables
Functions
Principle of Operation
Operating Instruction
Description of the Individual Operating Modes
JOG Speeds 1 and 2 (Modes 1,2)
Axis Off (Mode 4)
Reference Point (Mode 5)
Reference Point Approach
Set Reference point
Incremental Approach Absolute (Mode 6)
Incremental Approach Relative (Mode 7)
Executing Machining Programs
Automatic (Mode 8)
Automatic Single Statement (Mode 9)
Interrupting and Continuing Machining Programs in BA 8 and BA 9
Teach-in On/Off (Modes 10/1 1)
Zero Offset Absolute (Mode 12)
Zero Offset Relative (Mode 13)
Clear Zero Offset (Mode 14)
Tool Length Offset (Mode 15)
Tool Offset Off (Mode 16)
Clear Error (Mode 17)
Machine Data Processing (Modes 20,21,64,67 and 68)
Enter Machine Data (Mode 20)
Delete Machine Data (Mode 21)
Read Machine Data Directory (Mode 64)
Read Machine Data (Mode 67)
Machine Data Overview (Mode 68)
Executing Machining Programs (Modes 22,23,65 and 69)
Enter Machining Program (Mode 22)
Delete Machining Program (Mode 23)
Machining Program Information (Mode 65)
Read Machining Program (Mode 69)
Enter SYSID (Mode 24)
Read SYSID (Mode 70)
Description of the Individual Monitoring Modes
3-11
3-14
3-15
3-18
4-1
4-1
4-3
4-6
4-7
4-8
4-8
4-9
4-15
4-15
4-16
4-17
4-17
4-18
4-20
4-26
4-28
4-30
4-31
4-31
4-34
4-34
4-35
4-35
4-36
4-37
4-37
4-37
4-38
4-39
4-40
4-41
4-41
4-42
4-43
4-43
Siemens AG°C79000-B8576 -C707-01
o-3

Contents
5
COM247 Communications Software
5-1
Introduction
5.1
5-1
5-5
5.2
Definition of Terms
5.3
5.3.1
5.3.2
5.3.3
5.3.3.1
5.3.3.2
5.3.4
5.3.4.1
5.3.4.2
Getting Started
5-6
5-6
5-6
5-6
5-6
5-7
5-7
5-7
5-8
5-1o
5-15
5-17
5-18
5-18
5-19
5-30
5-32
5-35
5-35
5-35
5-37
5-39
5-42
5-42
5-43
5-44
5-44
5-46
5-49
Consignment
Setting the Configuration Register
Working Copy of the
COM247 Diskette
Programmers with one Floppy Disk Drive
(PG685)
Programmers with two Floppy Disk Drives (PG675, PG635)
System Configuration
Programmers without a Hard Disk (PG675)
Programmers with a Hard Disk (e.g. PG685)
5.4
Starting COM247
5.5
Function Selection
5.6
5.6.1
5.6.1.1
5.6.1.2
5.6.1.3
5.6.1.4
5.6.2
5.6.2.1
5.6.2.2
5.6.2.3
5.6.2.4
Input
Entering Machine Data
General Information about Machine Data
Compiling Machine Data
Print Machine Data
Assigning Printer Parameters
Entering Machining Programs
General Information about Machining Programs
Generating Machining Programs
Entering Machining Programs According to DIN
Entering Machining Programs in the Text Mode
output
Output Machine Data
5.7
5.7.1
5.7.2 Output Machining Program
5.8
5.8.1
5.8.2
5.8.3
Test
Starting the Test Mode
Modes
Mode Table
5.9
Transfer
5-51
5-!53
5-55
5.10
Delete
5.11
Information
6
Standard Function Blocks FB164 and FB165
6-1
6.1 General Notes
6.1.1 Overview
6-1
6-1
6.1.2
Notes
6.1.2.1
Overview of the Data Handling Blocks
6.1.2.2 Installing an Interface in
OB20, OB21 or OB22 with the S5-135U
6.1.2.3 Use of FB164/165 in the Various Programmable Controllers
6-2
6-2
6-2
6-3
0-4
Siemens AGQ C79000-138576-C707-02

Contents
6.1.3
6.2
6.2.1
6.2.2
6.2.2.1
6.2.2.2
6.2.3
6.2.4
6.2.5
6.2.6
6.2.6.1
6.2,6.2
6.2.7
6.2.7,1
6.2.7.2
6,2.8
6.2.9
6.2.9.1
6.2.9.2
6.2.9.3
6.2.9.4
6.3
6.3.1
6.3.2
6.3.3
6.3.4
6.3.5
6.3.6
6.3.7
6.3.7.1
6.3.7.2
6.3.8
6.3.8.1
6.3.8.2
6.3.8.3
6.3.8.4
6.3.8.5
6.3.8.6
6.3.8.7
6.3.9
6.3.10
6.3.11
6.4
Using the Positioning Module in Multiprocessor Operation
(applies tothe S5-135U and S5-155U)
The Standard Function Block FBI 64
Functional Description
Calling Function Block FBI 64
S5-135U,S5-1 50U,S5-155U
S5-11 5U
Overview of the Parameters
Explanation of the Parameters
Notes on using Actual Operands
Relationship between the Parameter
TBIT and the current Checkback Signals
General
The Parameter
TBIT with the Individual Modes
DataArea Requirements
Indirect Assignment of ParameterstoFB164
Structure of the Axis Data Block
Technical Data of FBI 64
Using Function Block FBI 64
Special Feature of the Parameter STOP
Special Features of the Parameters VORW and RUCK
BCD Output
BCD Output with the S5-1 15U
Standard Function Block FB165
Functional Description
Calling Function Block FBI 65
Overview of the Parameters
Explanation of the Parameters
Notes on using Actual Operands
Overview of the Permitted and Advisable Parameter Area for the Standard
Function Block FBI 65
Data Area Requirements
Indirect Assignment of Parameters to FBI 65
Structure of the Axis Data Block for an Axis
Structure of the Source or Destination Data Blocks in the PC Memory for the
Individual Modes
Structure of a Machine Data DB in the PC Memory
Structure of a Machining Program DB in the PC Memory
Structure of the SYSID of the IP247 in the PC Memory
Structure of the Machine Data Directory
Structure of the Machining Program Directory
Occupation of the Data Word when Reading Actual Values
Structure of the Machine Data Overview
Technical Data
Notes on Starting Up the IP247 Positioning Module via the PC Interface
Using the Function Block
Examples
6-5
6-6
6-6
6-7
6-7
6-7
6-8
6-9
6-14
6-14
6-14
6-15
6-18
6-19
6-20
6-25
6-26
6-28
6-28
6-28
6-28
6-29
6-29
6-30
6-30
6-31
6-34
6-35
6-36
6-36
6-37
6-38
6-38
6-41
6-43
6-44
6-45
6-47
6-49
6-50
6-51
6-52
6-54
Skmens AG@c79000-B8576 -c707-ol
o-5

Contents
6.4.1
6.4.2
6.4.3
6.4.3.1
6.4,3.2
6.4.3.3
6.4.3.4
6.4.3.5
6.4.3.6
6.4.4
6.4.4.1
6.4.4.2
6.4.4.3
6.4.4.4
6.4.5
6.4.5.1
6.4.5,2
6.4.6
6.4.6.1
6.4.7
6,4,8
7
7.1
7.1.1
7,1.2
7.1.3
7.1.4
7.1.5
7.1.5.1
7.1,5.2
7.1.5.3
7.1.6
7.2
721
7.2.2
7.2.3
7.3
7.3.1
7.3.2
7.3.3
7.4
0-6
General Notes on the Examples
Hardware Requirements
Assignments for the Examples
Digital Inputs: (valid for all Programmable Controllers)
Digital Outputs: (validforS5-135U, S5-150U and S5-155U)
Digital Outputs: (valid for S5-1 15U)
Occupation of the Data Area
Occupation of the Flag Area
Block Assignments
Schematic Diagrams of the Organization Blocks (Program Framework)
OB1
The Interrupt OBS
OB21 and OB22 withS5-115U
OB20 and OB22 with S5-135U
OB20withS5-150U andS5-155u
OB21withS5-135U, S5-150U andS5-155U
OB22withS5-150U
Example of Function BlockFB164
Function Block FB53 (Schematic Diagrams)
Function Block FB54 (Schematic Diagrams)
Example of Function Block FB165
Overview of the Relationship between the Mode and the Data Blocks
in the RAM of the CPU and the Positioning Module
Function Block FB51 (Schematic Diagrams)
Function Block FB52 (Schematic Diagrams)
Planning, Installation and Service
Planning
Basic Considerations
Selection Criteria for the Stepper Motor
Determining the Motor Characteristics
Planning the Machine Data
Installation
Preliminary Requirements
Preparing the Module
Preparing the Power Units
Controlling the I P247 by means of the Programmable Controller
Troubleshooting
Machine Data Errors and their Causes
Module Errors and Possible Causes
PG Interface Errors
Supplementary Notes
Keyboard Character Buffer
Multiprocessor Operation
Restarts
Troubleshooting Questionnaire
6-54
6-55
6-56
6-56
6-56
6-57
6-57
6-57
6-58
6-60
6-60
6-61
6-61
6-61
6-62
6-62
6-65
6-66
6-67
6-70
6-72
7-1
7-1
7-1
7-1
7-1
7-6
7-9
7-9
7-10
7-11
7-18
7-19
7-32
7-33
7-36
7-37
7-37
7-37
7-37
7-38
Siemens AG”c7g000-B8576 -c707-01

Notes on Using the Manual
1 Notes
1.1 Notes on Using the Manual
This manual describes a system for position control of three independent drives.
The system comprises the following components:
●
IP247 positioning module
●
COM 247 communications software
●
standard function blocks FBI 64 and FBI 65
The IP247 positioning module represents the link between your plant and the programmable
controller (PC). The standard function block FBI 64 is used for operating and monitoring, and
FB165 for assigning parameters to the IP247. With the programming package COM247, you can
generate, save and print machining programs and machine data. COM247 is also used to test
the IP247 online with the plant connected.
This manual refers to the following products:
The module IP247
e
The version for ventilated operation, single width, without additional heat sink, order num-
ber6ES5247-4UA31.
#
The version for non-ventilated operation, double width, with additional heat sink, order
number6ES5247-4 UA41.
The communications software COM247
●
From release A02.0,
order number 6ES5 895- 5SB22.
The standard function blocks FB164 and FB165
●
For the S5-1 15,
order number 6ES5 845- 8TA01,
9
For the S5-135 with CPU922 or928,
order number 6ES5 842- 8TBOI.
9
For the S5-150,
order number 6ES5 844- 8TA01.
●
For the S5-155,
order number 6ES5 846- 8TA01.
Siemens AG°C7900WS57S-C70741
1-1

Notes on Using the Manual
The manual is structured to allow you to become familiar with the system and can later be used
as a reference work to look up specific points.
Part 2:
‘Fundamentals of Positioning” introduces terms you require to work with the
positioning module, e.g.:
●
machine data,
b
machining programs,
●
axis attributes,
●
messages,
By familiarizing yourself with these terms, you will also gain a better understanding
of the functions and concept underlying the IP247,
Part 3:
“Hardware” deals with the hardw~e requirements necessary to use the IP247 in a
variety of situations. This covers the following topics:
4
connections,
●
jumper settings,
●
switch settings,
Part 4:
‘Functions” introduces you to the operating concept of the IP247. lllis is based
on the following:
●
operating functions,
●monitoring functions,
These functions and their effects are described in this part,
Part !5:
“COM247CommunicationsSoftware” explains how to assign parameters to the
I P247 and how to test it using this software package. The following aspects of
COM247 are covered:
b
generating machine data and machining programs,
●
saving the generated data,
●
storing the data in the memory of the PG,
●
printing machine data records and machining programs,
●
testing the IP247 with the plant connected,
1-2
Siemens AG°C79000-B8576 -C707-01

Notes on Using the Manual
Part 6: “Standard Function Blocks FB164and FB165” describes the assignment of para-
meters, operation and monitoring of the
IP247 by the CPU. This description dis-
cusses the following:
●
FBI 64 for operating and monitoring the IP247,
●
FBI 65 for assigning parameters to the IP247,
●
the structure of the machine data and machining programs in a STEP 5
block,
●
examples of parameter assignment for an axis.
Part 7:
‘Planning, Installation and Service” cont~ns the following:
●
notes on planning the drive and the machine data,
●guidelines for installing and starting the module,
●
an overview of troubleshooting routines,
●
instructions for diagnosing problems.
Part
8; “Index” lists the most important terms used in the handbook.
Siemens AG”c79000-68576 -c707-ol
1-3

/rnPortar7t Notes on Safetv
1.2
Important Notes on Safety
Note
.
A
I
●
Before starting up the system, the plant must be equipped with emergency stop
limit switches , which directly affect the power supply.
If the plant is operated from the PG, the emergency stop switch, to switch off the
whole plant must be accessible from the PG.
If the positioning module is linked into the programmable controller, an emer-
gency stop switch must be integrated in the control panel used for operation.
Despite extensive measures both in development and production to achieve the high reliability
of
S1 MATIC S5, errors can never be completely excluded. Whenever an error could lead to dam-
aged equipment or even personal injury, all measures must be taken to ensure
a safe configura-
tion according to the pertinent regulations.
The commissioning and starting up of a drive always demands particular care, The possibility
that the drive might start moving unexpectedly for whatever reason can never be fully excluded.
Such a movement can, for example, result from accidental triggering of commands or from
faults in the electronics.
To be able to stop the, in some cases, enormous energy of a moving drive, emergency stop limit
switches at the ends of the traversing range, which switch off the power supply directly, must al-
ways be present, Depending on the type of drive, these limit switches must also be combined
with mechanical brakes and buffers to prevent any possible damage.
The positioning module has inputs for two limit switches for each axis, however, these can never
be a substitute for emergency stop limit switches directly connected to the power supply.
1-4
%=Twns ,4 GQC79000-E18576 -C707-01

I
/mportant Notes on Safety
To power
Digital Digital
To power
supply input IP247
input IP247 supply
\\
Hardware
limit switch Hardware
limit switch
start
end
/ ‘ i “
I
+-
1
1“
4
1-
Traversing \
ss
s
s
\
brake brake blase brake
Ma;hine range
Machine’
start
= braking distance
end
‘brake
Fig, 1/1 Linear axis with limit switches
The positioning module also has a further stop input.
There is a digital input “external
starVstop” for each axis, which must be wired up before starting
the system. This allows an axis to be stopped at any time regardless of whether it is being
operated from the PC or from the PG. Once again, this input cannot be regarded as a substitute
for emergency stop limit switches. Remember that depending on prior operation, this input can
also have the effect of an internal start signal.
When operating the plant with a PG, remember the following points:
If an axis is started from the programmer during installation and initial start-up, it continues to
move even if you exit the test display in which the start was triggered or switch off the program-
mer. Depending on the particular operation, the axis only stops when the target or a limit
sw]tch
is reached. It is therefore strongly advised that you remain in the test display while the axis is tra-
versing.
When characters are entered at the programmer keyboard, they are written to a buffer. If charac-
ters are entered more quickly than they can be processed, they are stored temporarily in this
buffer. This can become noticeable in the test display of COM247 when entering commands, if,
for example, the commands “forward” and “reverse” are entered in quick succession. The execu-
tion then lags behind the input. A stop command is therefore only executed, when all the
commands stored before it in the character buffer have been processed.
The last job is completely executed unless it contradicts the second to last job.
Siemens AG”c79000-B8576-c707-ol
1-5

hfrocfucfion
2 Fundamentals of Positioning
2.1
Introduction
This part introduces you to the IP247. It provides you with certain information about positioning
and briefly describes the function of the
IP247 positioning module and its firmware, which repre-
sents the heart of the module.
The following terms, which must be familiar when working with the IP247, are then explained:
● machine data,
● machining programs and
●
axis attributes.
Finally, this part provides you with information about the digital inputs and digital outputs made
available by the
IP247 and an explanation of the limit switch concept and its effects with the
IP247.
Siemens AGQ C79000-B8576-C707-02 2-1

A Brief Introduction to the IP247
2.2 A Brief Introduction to the IP247
Using the positioning module IP247, you can move and position three independent axes. From
the positioning jobs and the machine data, the module calculates pulse trains which are output
to the connected stepper motor power unit, The number of pulses decides the distance
travelled,
the pulse frequency corresponds to the speed, A direction signal is also output to specify the
direction of the movement,
~
Communications
prccessm
mternd S5 bus
~
Central
proc, unit
r-
~ ~G730
PC AT
Fig. 2/1 The IP247 inthe SIMATIC S5system
Due to its adaptability, the module must have parameters assigned to it. Parameter assignment
is simple and is performed at the monitor of a programmer (PG) using the software package
COM247, You can assign parameters to the IP247 via the PC interface, however, without the
user-friendly support of the COM247 software package,
In the test mode, the COM247 software package allows you to test all the functions of the IP247
and therefore the positioning functions of your plant.
Two standard function blocks FBI 64 and FBI 65 are used to incorporate the functions of the
IP247 in a user program, allowing all the functions of the IP247 to be executed from the CPU.
These are stored in an EPROM cartridge in the CPU. The data handling blocks for communica-
tions processors are subordinate to the function blocks.
The module can be operated both from a PG and from a PC, however, the functions of the inter-
faces differ from each other. With the software package COM247, the PG is used for convenient
parameter assignment, starting up and testing the module. The PC interface is used to execute
the functions of the IP247 during normal plant operation.
2-2
Siemens AG@C79000-B8576 -C707-01

A Brief Introduction to the IP247
Jobs can be sent to the IP247 via the PG interface and via the PC interface simultaneously.
When requested, the IP247 sends status messages via both interfaces.
Fig, 2/2 Communication with the PC and PG
Each positioning operation of the
IP247 is based on a machine data record specific to the axis,
which must be transferred to the memory of the I P247 via one of the two interfaces. An axis is
only functional when a correct machine data record exists on the module. By making entries in
this data record, you stipulate the electrical and mechanical limits of your plant. These include
the maximum rate of frequency increase of the axis, the maximum pulse frequency, the per-
mitted traversing range of your axis and the type of axis (linear or rotary).
With the I
P247, positioning jobs can be issued in two ways, as follows:
●
machining programs, i.e. a connected series of traversing jobs, dwell times, corrections
and
switchovers, which are stored in the memory of the IP247,
●
single jobs, sent to the IP247 via an interface.
You can input and delete a machining program both via the PG and the PC interface.
It is possible to take into account changing tool lengths and to execute zero point offsets.
Siemens AG”c79000-B8576-c707-o~
2-3