Siemens simatic c7-621 Manual

Preface, Contents
User Information
Product Overview 1
Installation
Installing and Preparing
the C7 2
Configuring an MPI Network 3
Connecting a Programming
Device / PC to a C7 4
AS-i
Attaching a C7-621 AS-i 5
I/Os
C7-621 Digital I/Os 6
C7-621 Analog I/Os 7
Maintenance 8
Appendix
General Technical Specifica-
tions A
Guidelines for Handling ESD
Devices B
Safety of Electronic Controllers C
SIMATIC C7 and S7 Refer-
ences D
Glossary, Index
C79000-G7076-C621-01
C7-621 / C7-621 AS-i
Control Systems
Volume 1
Hardware and Installation
Manual
SIMATIC

ii
C7-621 / C7-621 AS-i Control Systems
C79000 G7076 C621 01
This manual contains notices which you should observe to ensure your own personal safety, as well asto
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
indicatesthatdeath,severepersonalinjuryorsubstantialpropertydamagewillresultifproperprecautionsare
not taken.
!Warning
indicatesthatdeath,severepersonalinjuryorsubstantialpropertydamagecanresultifproperprecautionsare
not taken.
!Caution
indicates that minor personal injury or property damage can result if proper precautions are not taken.
Note
drawsyourattentiontoparticularlyimportantinformationontheproduct,handlingtheproduct,ortoaparticular
part of the documentation.
The device/system may only be set up and operated in conjunction with this manual.
Only qualified personnel should be allowed to install and work on this equipment. Qualified persons are
defined as persons who are authorized to commission, to ground, and to tag circuits, equipment, and sys-
tems in accordance with established safety practices and standards.
Note the following:
!Warning
Thisdeviceanditscomponentsmayonlybeusedfortheapplicationsdescribedinthecatalogorthetechnical
description, and onlyinconnectionwith devicesor components fromother manufacturers whichhave been
approved or recommended by Siemens.
Thisproductcanonlyfunctioncorrectlyandsafelyifitistransported,stored,setup,andinstalledcorrectly,and
operated and maintained as recommended.
SIMATICRand SMATIC NETRare 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.
We have checked the contents of this manual for agreement with the
hardwareandsoftwaredescribed.Sincedeviationscannotbeprecluded
entirely, we cannot guarantee full agreement. However, the data in this
manualarereviewedregularlyandanynecessarycorrectionsincludedin
subsequent editions. Suggestions for improvement are welcomed.
Subject to change without prior notice.
ESiemens AG 1997
Disclaimer of LiabilityCopyright ESiemens AG 1997 All rights reserved
Thereproduction,transmissionoruseofthisdocumentoritscontentsis
notpermittedwithoutexpresswrittenauthority.Offenderswillbeliablefor
damages.Allrights,includingrightscreatedbypatentgrantorregistration
of a utility model or design, are reserved.
Siemens AG
BereichAutomatisierungstechnik
IndustrialAutomation Systems
Postfach4848, D-90327Nuernberg
Siemens Aktiengesellschaft C79000-G7076-C621
Safety Guidelines
Qualified Personnel
Correct Usage
Trademarks

iii
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
Preface
This manual will help you with the following tasks:
SInstalling and wiring up a C7-621 or C7-621 AS-i (Volume 1)
SAssigning parameters to the CPU of the C7-621 or C7-621 AS-i,
downloading a user program to the CPU, and starting up
(Volume 2)
SMaking the settings required on the C7-621 and C7-621 AS-i for
operation and using the operator interface functions
(Volume 2)
This manual is intended for two different groups of readers:
SVolume 1:
Users installing the C7 mechanically and electrically on site and
preparing the C7 so that it is ready for operation.
SVolume 2:
Users creating control programs and operator interface configurations and
downloading them to the C7.
This manual describes the hardware and software of the
C7-621 and C7-621 AS-i. It consists of two volumes.
Volume 1 of the manual deals with the following topics:
SInstalling and preparing the C7-621 or C7-621 AS-i
SNetworking the C7-621 or C7-621 AS-i with a programming device and
other devices
SConnecting the digital and analog I/Os
SConnecting the IM 621 interface module
Purpose
Audience
Contents of the
Manual

iv C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
Volume 2 of the manual deals with the following topics:
SStartup of the C7
SControlling with the C7 CPU
SAddressing and assigning parameters for the C7 I/Os
SC7 diagnostics
SAS-i system concept
SUsing and operating AS-i
SUsing the operator interface functions of the C7
To make the manual easier to read, the device types C7-621 or C7-621 AS-i
will simply by called C7 in the manual.
If the device is simply called C7 in the manual, the information applies to
both versions of the control system. Where differences occur, the full name
of the unit will be used.
This manual is valid for the following C7s:
C7 Order Number Versions and Higher
C7-621 6ES7621-1AD00-0AE3 01
C7-621 AS-i 6ES7621-6BD00-0AE3 01
This manual can be obtained under the order number
6ES7621-1AD00-8BA0.
This manual describes the C7-621 and C7-621 AS-i. To program, expand and
configure a C7, you also require the following manuals:
Conventions for
C7
Scope of the
Manual
C7 Manual
Other Manuals
Required
Preface

v
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
C7
Programming
Assigning Parameters ConfiguringExpanding
Harware and Installation
If required
STL for S7-300/400
LAD for S7-300/400
System and Standard
Functions
STEP7 User Manual
Program Design
ProTool/ Lite
Module Specifications ProTool
To familiarize yourself with the AS-i system, we recommend the following
procedure:
SYou should certainly read the AS-i brochure.
Actuator Sensor Interface
Order number E20001-P285-A497-V2-X-7600
This brochure can be ordered from all Siemens offices.
C7-621 AS-i
Brochure
Preface

vi C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
Table 1-1 STEP 7 Documentation Package, Order Number 6ES7810-4AA00-8AA0
Manual Topics
Standard Software for S7 and
M7
STEP 7 User Manual
This provides information about working with the STEP 7 tools.
SInstallation and startup of STEP 7 on a PC/programming device
SUsing the tools:
– Managing projects and files
– Configuring the S7-300 and assigning parameters
– Assigning symbolic names for user programs
– Creating and debugging user programs in STL/LAD
– Creating data blocks
– Configuring communication between CPUs
– Downloading, saving, and deleting user programs on CPUs and
programming devices
– Monitoring and modifying user programs (for example variables)
– Monitoring and modifying the CPU (for example mode, memory reset,
compress memory, protection levels)
Manual:
STL for S7-300/400,
Programming
or
Manual:
LAD for S7-300/400,
Programming
Reference manuals for programming with STL or LAD:
SBasics of working with STL/LAD (for example structure of STL/LAD,
numerical formats, syntax)
SDescription of all instructions in STEP 7 (with program examples)
SDescription of the various ways of addressing in STEP 7 (with examples)
SDescription of all integrated functions on the CPUs
SDescription of the CPU-internal registers
Reference Manual:
System Software for S7-300
and S7-400, System and
Standard Functions
Detailed description of:
SAll the standard functions (FCs) integrated in STEP 7
SAll the system functions (SFCs) integrated in the operating system of the CPU
User Manual:
Standard Software for S7,
Converting S5 Programs
This manual provides information about converting STEP 5 programs to STEP 7:
SWorking with the S5/S7 converter
SRules for conversion
SUsing converted STEP 5 standard function blocks in STEP 7
Manual: General Index General index of all the manuals in the documentation package.
Preface

vii
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
Appendix D of Volume 2 of this manual contains a list with further sources of
information about the S7-300 and programmable logic controllers.
Table 1-2 Further Manuals
Manual Topics
Programming Manual:
System Software for S7-300 and
S7-400, Program Design
This manual contains basic information about designing STEP 7 programs:
SIntroduction to the efficient solution of programming tasks using a
PC/programming device and STEP 7
SHow the CPUs function (for example memory concept, access to inputs
and outputs, addressing, blocks, data types, data management)
SDescription of STEP 7 data management
SUsing data types of STEP 7
SUsing linear and structured programming (with program examples)
SUsing block call instructions
SOverview of using STEP 7 tools for developing projects (with an
extensive example)
SUsing test and diagnostic functions of the CPUs in user programs (for
example error OBs, status word)
Manual:
S7-300 Programmable
Controller, Hardware and
Installation
This manual describes the hardware of the S7-300:
SConfiguring the S7-300
SInstalling the S7-300
SWiring and preparing the S7-300 for startup
SProperties and technical data of the S7-300 modules
Reference Manual:
Programmable Controllers
S7-300, M7-300,
Module Data
This manual describes the hardware of the S7-300 modules:
SAnalog modules
SDigital modules
SInterface modules
SProperties and technical data of the S7-300 modules
Instruction List:
S7-300 Programmable
Controller, CPU
312/314/315/315-DP
This describes the set of instructions of the CPU 312, CPU 314, CPU 315,
and CPU 315-DP including the run times of all instructions.
Further
Information
Preface

viii C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
Table 1-2 Further Manuals, continued
Manual Topics
PG 7xx Descriptions of the PG hardware:
SConfiguration and startup of the PG
SPossible expansions
SConfiguration
STrouble shooting
SIMATIC HMI
ProTool/ Lite
Manual for creating configurations:
SWorking with ProTool/Lite
SConfiguration
SDisplays and messages
SDownloading a configuration to the C7
SIMATIC HMI
ProTool
Manual for creating configurations:
SWorking with ProTool
SConfiguration
SDisplays and messages
SDownloading configurations to the C7
To help you find specific information, the manual is laid out as follows:
SAt the start of both volumes of the manual, you will find a complete table
of contents.
SIn the left margin of the chapters, there is a subtitle indicating the content
of the section.
SAfter the appendix, there is a glossary listing important terminology used
in the manual.
SAt the end of the manual there is a detailed subject index.
The C7 control system complies with the standards described in Appendix
A.1.
If you have questions about the C7 control system, please contact your
Siemens representative.
There is a list with the addresses of Siemens representatives world-wide in
Appendix E of Volume 2 of the manual.
If you have questions or comments about the manual itself, please complete
and return the remarks form. You will find this at the end of Volume 2.
Finding Your Way
Round the Manual
Standards
Questions
Preface

ix
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
Contents
1 Product Overview 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 Installing and Preparing the C7 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1 Components and Accessories of the C7 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 Installing a C7 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3 Location of the C7 2-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.4 Electrical Installation and Pinouts 2-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.5 Guidelines for Trouble-Free Installation 2-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.6 Connecting Up Cables 2-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.7 Connector Key Inserts 2-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.8 Contrast 2-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.9 I/O Expansion with the IM 621 2-18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.10 Memory Reset on the C7 2-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.11 Status and Error LEDs on the C7 2-23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.12 Clocks on the C7 2-24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 Configuring an MPI Network 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1 Communication via the MPI Interface 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2 Rules for Configuring an MPI Network 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3 Cable Lengths 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4 Network Components 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.5 Bus Connectors 3-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.5.1 PROFIBUS Bus Connector 3-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.5.2 Bus Connector 6ES7 972-0B.20-0XA0 3-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.5.3 Bus Connector 6ES7 972-0B.10-0XA0 3-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.5.4 Connecting the Bus Connector to a Module 3-19. . . . . . . . . . . . . . . . . . . . . . . . .
4 Connecting a Programming Device / PC to a C7 4-1. . . . . . . . . . . . . . . . . . . . . . . . . .
4.1 Connecting a Programming Device / PC to a C7 4-2. . . . . . . . . . . . . . . . . . . . .
4.2 Connecting a Programming Device/PC to Several Nodes 4-3. . . . . . . . . . . . .
5 Attaching a C7-621 AS-i 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.1 AS-i Attachments 5-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2 The AS-i Cable 5-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

xC7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
6 C7-621 Digital I/Os 6-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1 Digital Inputs 6-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.2 Digital Outputs 6-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.3 Status Displays of the DI/DO 6-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7 C7-621 Analog I/Os 7-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.1 Connecting Sensors to Analog Inputs 7-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.1.1 Connecting Voltage and Current Sensors 7-5. . . . . . . . . . . . . . . . . . . . . . . . . . .
7.2 Connecting Loads/Actuators to the Analog Output 7-7. . . . . . . . . . . . . . . . . . . .
7.3 Analog Input 7-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.3.1 Properties and Technical Data of the Analog Input Module 7-11. . . . . . . . . . . . .
7.4 Analog Output 7-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8 Maintenance 8-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A General Technical Specifications A-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A.1 Technical Specifications A-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A.2 Notes on the CE Approval A-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A.3 Notes for Manufacturers of Machines A-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B Guidelines for Handling Electrostatically Sensitive Devices (ESD) B-1. . . . . . . . . .
B.1 What is ESD? B-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B.2 Electrostatic Charging of Objects and Persons B-3. . . . . . . . . . . . . . . . . . . . . . .
B.3 General Protective Measures Against Electrostatic Discharge Damage B-4.
B.4 Taking Measurements and Working on ESD Modules B-6. . . . . . . . . . . . . . . . .
B.5 Packing Electrostatic Sensitive Devices B-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C Safety of Electronic Controllers C-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
D SIMATIC C7 and S7 References D-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Glossary Glossary-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Index Index-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Contents

1-1
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
Product Overview
This chapter introduces you to the C7-621 and C7-621 AS-i. A brief
overview of the range of performance will give you a first impression of the
two devices.
This chapter also explains the additional components that you can connect to
a C7.
To install and start up the C7, you require the following accessories:
SProgramming device or PC with an MPI interface and PG cable
SThe following software must be loaded on the programming device or PC
– STEP 7 Tools
– ProTool or ProTool/Lite
In This Chapter
Accessories for
Installing and
Starting Up
a C7
1

1-2 C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
There are two versions of the C7:
With a two-line display and 20 characters per line with 5 mm high characters
(see Figure 1-1).
The C7-621 has the following components:
SMPI interface
SDigital inputs and outputs
SAnalog inputs and outputs
SP bus connection (for the IM 621 module)
Figure 1-1 C7-621
You can do the following with the C7-621:
SRun user programs that were written in STL, LAD or FBD and
downloaded to the C7 CPU.
SProcess digital and analog signals using the I/Os integrated on the C7.
SDownload and use operator interface applications that you created with
the “ProTool” or “ProTool/Lite” configuration tool.
SUsing these configurations, you can monitor and intervene in the process
you are controlling with the user program.
SConnect further S7-300 modules.
Overview
C7-621
Range of
Functions
Product Overview

1-3
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
The C7 has two independent units that communicate with each other via an
internal MPI interface:
SC7 CPU with digital and analog inputs and outputs
SC7 OP
Where necessary, these units are dealt with separately in the manuals.
With a two-line display and 20 characters per line with characters 5 mm high
(see Figure 1-2).
The C7-621 AS-i has the following components:
SMPI interface
SAS-interface
SP bus connection (for the IM 621 module)
This model does not have digital inputs/outputs and analog inputs/outputs.
Figure 1-2 C7-621 AS-i
You can do the following with the C7-621 AS-i control system:
SRun user programs that were written in STL, LAD or FBD and
downloaded to the C7 CPU.
SConnect actuators and sensors via the AS-interface to the C7-621 AS-i.
SDownload and use operator interface applications that you created with
the “ProTool” or “ProTool/Lite” configuration tool.
SUsing these configurations, you can monitor and intervene in the process
you are controlling with the user program.
SConnect further S7-300 modules.
C7-621 Units
C7-621 AS-i
Range of
Functions
Product Overview

1-4 C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
The C7 has two independent units that communicate with each other via an
internal MPI interface.
SC7 CPU with C7 AS-i CP
SC7 OP
When necessary, these units are dealt with separately in the manuals.
C7-621 AS-i Units
Product Overview

1-5
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
Apart from the connections to the process you can also connect various
components to the C7. The most important components and their functions
are listed in Table 1-1:
Table 1-1 Components that Can Be Connected to a C7
Component Function Schematic
IM 621 interface module with
cable ...connects a C7 with an expansion rack for S7-300
modules
Signal module (SM)
(Digital input modules,
digital output modules,
analog input modules,
analog output modules,
analog input/output modules)
...adapt various process signal
levels to the C7 CPU. Can be
connected to the C7 via an IM
621.
S7-300 (CPU) ...communicates via the MPI
interface with C7 and with other
nodes on an MPI network.
S7-400 (CPU) ...communicates via the MPI
interface with C7 and other
nodes on an MPI network.
OP (Operator Panel) ...allows operator interface
functions.
PROFIBUS LAN cable with
bus connector ...interconnects nodes on an MPI network.
PG cable ...connects a programming
device/PC with a C7.
Components that
Can Be Connected
to a C7
Product Overview

1-6 C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
Table 1-1 Components that Can Be Connected to a C7, continued
Component SchematicFunction
Programming device (PG) or PC
with the STEP 7 software
package and ProTool or Pro
Tool/Lite
...configures, assigns
parameters, programs, and tests
the C7.
RS 485 repeater ...amplifies the signals in an
MPI or PROFIBUS DP network
and connects segments of an
MPI or PROFIBUS DP network.
Sensors and actuators
AS-i slaves Refer to the various catalogs
(applies only to the C7-621
AS-i).
Product Overview

1-7
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
The SIMATIC C7-621/C7-621 AS-i devices consist of several components
that interact with each other:
SA programmable controller CPU of the SIMATIC S7-300 class (C7 CPU),
SA line-oriented SIMATIC OP (C7 OP),
SIntegrated digital and analog I/Os (C7-621 I/Os),
SA P bus connection for expanding the C7-621 with an IM 621 using
S7-300 modules,
SAn MPI interface for communication with the programming device/PC
and other S7 CPUs, C7 control systems and OPs,
SAn AS-interface (AS-i) for connecting sensors and actuators (version
C7-621 AS-i, see Figure 1-4)
C7-621
C7
I/Os
P bus MPI
interface
C7 CPU C7 OP
CPU memory
C7 CPU
OP memory
C7 OP
STEP 7
ProTool Lite
or
ProTool
Figure 1-3 Components of the C7-621
The individual components integrated in the SIMATIC C7 correspond to the
components that can also be used in the modular configuration consisting of
an S7-300 CPU, OP etc. The I/O expansion via the P bus interface (IM 621)
allows the connection of a maximum of four SIMATIC S7-300 modules. The
AS-interface allows the connection of sensors and actuators to the C7-621
AS-i (Figure 1-4).
Overview of the C7
Product Overview

1-8 C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
The basic functions also correspond to those of a modular configuration with
standard modules from the programmable controller and OP families, the
individual components operate independently of each other and each of the
processors has its own memory.
C7 CPU is programmed with STEP 7 and the C7 OP is configured with
ProTool/Lite.
C7-621 AS-i
C7-AS-i
MPI
interface
C7 CPU C7 OP
CPU memory
C7 CPU
OP memory
C7 OP
STEP 7
ProTool Lite
or
ProTool
P-Bus
Figure 1-4 Components of the C7-621 AS-i
Product Overview

2-1
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
Installing and Preparing the C7
Section Description Page
2.1 Components and Accessories of the C7 2-2
2.2 Installing a C7 2-3
2.3 Location of the C7 2-6
2.4 Electrical Installation and Pinouts 2-7
2.5 Guidelines for Trouble-Free Installation 2-13
2.6 Connecting Up Cables 2-15
2.7 Connector Key Inserts 2-16
2.8 Contrast 2-17
2.9 I/O Expansion with the IM 621 2-18
2.10 Memory Reset on the C7 2-20
2.11 Status and Error LEDs on the C7 2-23
2.12 Clocks on the C7 2-24
Chapter
Overview
2

2-2 C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
2.1 Components and Accessories of the C7
The following components are supplied with the C7-621:
SC7-621 (order number 6ES7 621-1AD00-0AE3)
SGrounding bar
S6 shield clips
SSeal and 4 securing posts
SSet of connectors for C7 I/Os with key inserts
SProduct information
The following components are supplied with the C7-621 AS-i:
SC7-621 AS-i (order number 6ES7 621-6BD00-0AE3)
SSeal and 4 securing posts
SSet of connectors for AS-i and C7 power supply with key inserts
SProduct information
The following components can be ordered as accessories for the C7:
SManual: C7-621, C7-621 AS-i Control Systems consisting of two volumes
in the following languages:
German: 6ES7 621-1AD00-8AA0
English: 6ES7 621-1AD00-8BA0
French: 6ES7 621-1AD00-8CA0
Italian: 6ES7 621-1AD00-8DA0
Spanish: 6ES7 621-1AD00-8EA0
SService package (seal and 4 securing posts) 6ES7 623-1AE00-3AA0
SSet of connectors for C7 I/Os with key inserts
6ES7 623-1AE00-4AA0
SIM 621 interface module with cable 6ES7 621-1AD00-6AE3
Components
Supplied with the
C7-621
Components of the
C7-621 AS-i
Accessories
Installing and Preparing the C7