Siemens simatic c7-621, simatic c7-621 As-i Hardware Installation Manual
Preface, Contents
User Information
SIMATIC
C7-621 / C7-621 AS-i
Control Systems
Volume 1
Hardware and Installation
Manual
Product Overview
Installation
Installing and Preparing
the C7
Configuring an MPI Network
Connecting a Programming
Device / PC to a C7
AS-i
Attaching a C7-621 AS-i
I/Os
C7-621 Digital I/Os
1
2
3
4
5
6
C79000-G7076-C621-01
C7-621 Analog I/Os
Maintenance
Appendix
General Technical Specifications
Guidelines for Handling ESD
Devices
Safety of Electronic Controllers
SIMATIC C7 and S7 Refer-
ences
Glossary, Index
7
8
A
B
C
D
Safety Guidelines
!
!
!
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 that death, severe personal injury or substantial property damage will result if proper precautions are
not taken.
Warning
indicates that death, severe personal injury or substantial property damage can result if proper precautions are
not taken.
Caution
indicates that minor personal injury or property damage can result if proper precautions are not taken.
Note
draws your attention to particularly important information on the product, handling the product, or to a particular
part of the documentation.
Qualified Personnel
Correct Usage
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 systems in accordance with established safety practices and standards.
Note the following:
Warning
!
Trademarks
The reproduction, transmission or use of this document or its contents is
not permitted without express written authority. Of fenders 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
Bereich Automatisierungstechnik
Industrial Automation Systems
Postfach 4848, D-90327 Nuernberg
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.
This product can only function correctly and safely if it is transported, stored, set up, and installed correctly, and
operated and maintained as recommended.
SIMATICR and SMATIC NETR 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.
Disclaimer of LiabilityCopyright E Siemens AG 1997 All rights reserved
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.
Subject to change without prior notice.
E Siemens AG 1997
Siemens Aktiengesellschaft C79000-G7076-C621
C7-621 / C7-621 AS-i Control Systems
Preface
Purpose
Audience
Contents of the
Manual
This manual will help you with the following tasks:
S Installing and wiring up a C7-621 or C7-621 AS-i (Volume 1)
S Assigning 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)
S Making 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:
S Volume 1:
Users installing the C7 mechanically and electrically on site and
preparing the C7 so that it is ready for operation.
S Volume 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:
S Installing and preparing the C7-621 or C7-621 AS-i
S Networking the C7-621 or C7-621 AS-i with a programming device and
other devices
S Connecting the digital and analog I/Os
S Connecting the IM 621 interface module
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
iii
Preface
Volume 2 of the manual deals with the following topics:
S Startup of the C7
S Controlling with the C7 CPU
S Addressing and assigning parameters for the C7 I/Os
S C7 diagnostics
S AS-i system concept
S Using and operating AS-i
S Using the operator interface functions of the C7
Conventions for
C7
Scope of the
Manual
C7 Manual
Other Manuals
Required
T o 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. T o program, expand and
configure a C7, you also require the following manuals:
iv
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
C7
Preface
Programming
Assigning Parameters
STL for S7-300/400
LAD for S7-300/400
System and Standard
Functions
STEP7 User Manual
C7-621 AS-i
Brochure
Program Design
ConfiguringExpanding
Harware and Installation
Module Specifications
If required
T o familiarize yourself with the AS-i system, we recommend the following
procedure:
ProTool/ Lite
ProTool
S You should certainly read the AS-i brochure.
This brochure can be ordered from all Siemens offices.
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
Actuator Sensor Interface
Order number E20001-P285-A497-V2-X-7600
v
Preface
Table 1-1 STEP 7 Documentation Package, Order Number 6ES7810-4AA00-8AA0
Manual
Standard Software for S7 and
M7
STEP 7 User Manual
Manual:
STL for S7-300/400,
Programming
or
Manual:
LAD for S7-300/400,
Programming
This provides information about working with the STEP 7 tools.
S Installation and startup of STEP 7 on a PC/programming device
S Using 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)
Reference manuals for programming with STL or LAD:
S Basics of working with STL/LAD (for example structure of STL/LAD,
numerical formats, syntax)
S Description of all instructions in STEP 7 (with program examples)
S Description of the various ways of addressing in STEP 7 (with examples)
S Description of all integrated functions on the CPUs
Topics
S Description of the CPU-internal registers
Reference Manual:
System Software for S7-300
and S7-400, System and
Standard Functions
User Manual:
Standard Software for S7,
Converting S5 Programs
Detailed description of:
S All the standard functions (FCs) integrated in STEP 7
S All the system functions (SFCs) integrated in the operating system of the CPU
This manual provides information about converting STEP 5 programs to STEP 7:
S Working with the S5/S7 converter
S Rules for conversion
S Using converted STEP 5 standard function blocks in STEP 7
Manual: General Index General index of all the manuals in the documentation package.
vi
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
Preface
Further
Information
Table 1-2 Further Manuals
Manual Topics
Programming Manual:
System Software for S7-300 and
S7-400, Program Design
Manual:
S7-300 Programmable
Controller, Har dware and
Installation
Reference Manual:
Programmable Contr ollers
S7-300, M7-300,
Module Data
Instruction List:
S7-300 Programmable
Controller, CPU
312/314/315/315-DP
Appendix D of Volume 2 of this manual contains a list with further sources of
information about the S7-300 and programmable logic controllers.
This manual contains basic information about designing STEP 7 programs:
S Introduction to the efficient solution of programming tasks using a
PC/programming device and STEP 7
S How the CPUs function (for example memory concept, access to inputs
and outputs, addressing, blocks, data types, data management)
S Description of STEP 7 data management
S Using data types of STEP 7
S Using linear and structured programming (with program examples)
S Using block call instructions
S Overview of using STEP 7 tools for developing projects (with an
extensive example)
S Using test and diagnostic functions of the CPUs in user programs (for
example error OBs, status word)
This manual describes the hardware of the S7-300:
S Configuring the S7-300
S Installing the S7-300
S Wiring and preparing the S7-300 for startup
S Properties and technical data of the S7-300 modules
This manual describes the hardware of the S7-300 modules:
S Analog modules
S Digital modules
S Interface modules
S Properties and technical data of the S7-300 modules
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.
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
vii
Preface
Table 1-2 Further Manuals, continued
Manual Topics
PG 7xx Descriptions of the PG hardware:
S Configuration and startup of the PG
S Possible expansions
S Configuration
S Trouble shooting
SIMATIC HMI
ProTool/ Lite
Manual for creating configurations:
S Working with ProTool/Lite
S Configuration
S Displays and messages
S Downloading a configuration to the C7
SIMATIC HMI
ProTool
Manual for creating configurations:
S Working with ProTool
S Configuration
S Displays and messages
S Downloading configurations to the C7
Finding Y our Way
Round the Manual
Standards
Questions
T o help you find specific information, the manual is laid out as follows:
S At the start of both volumes of the manual, you will find a complete table
of contents.
S In the left margin of the chapters, there is a subtitle indicating the content
of the section.
S After the appendix, there is a glossary listing important terminology used
in the manual.
S At 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.
viii
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
ix
Contents
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
x
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
Product Overview
1
In This Chapter
Accessories for
Installing and
Starting Up
a C7
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.
T o install and start up the C7, you require the following accessories:
S Programming device or PC with an MPI interface and PG cable
S The following software must be loaded on the programming device or PC
– STEP 7 Tools
– ProTool or ProTool/Lite
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
1-1
Product Overview
Overview
C7-621
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:
S MPI interface
S Digital inputs and outputs
S Analog inputs and outputs
S P bus connection (for the IM 621 module)
Range of
Functions
1-2
Figure 1-1 C7-621
You can do the following with the C7-621:
S Run user programs that were written in STL, LAD or FBD and
downloaded to the C7 CPU.
S Process digital and analog signals using the I/Os integrated on the C7.
S Download and use operator interface applications that you created with
the “ProT ool” or “ProTool/Lite” configuration tool.
S Using these configurations, you can monitor and intervene in the process
you are controlling with the user program.
S Connect further S7-300 modules.
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
Product Overview
C7-621 Units
C7-621 AS-i
The C7 has two independent units that communicate with each other via an
internal MPI interface:
S C7 CPU with digital and analog inputs and outputs
S C7 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:
S MPI interface
S AS-interface
S P 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
Range of
Functions
You can do the following with the C7-621 AS-i control system:
S Run user programs that were written in STL, LAD or FBD and
downloaded to the C7 CPU.
S Connect actuators and sensors via the AS-interface to the C7-621 AS-i.
S Download and use operator interface applications that you created with
the “ProT ool” or “ProTool/Lite” configuration tool.
S Using these configurations, you can monitor and intervene in the process
you are controlling with the user program.
S Connect further S7-300 modules.
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
1-3
Product Overview
C7-621 AS-i Units
The C7 has two independent units that communicate with each other via an
internal MPI interface.
S C7 CPU with C7 AS-i CP
S C7 OP
When necessary, these units are dealt with separately in the manuals.
1-4
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
Product Overview
Components that
Can Be Connected
to a C7
Table 1-1 Components that Can Be Connected to a C7
Component Function Schematic
IM 621 interface module with
cable
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 T able 1-1:
...connects a C7 with an
expansion rack for S7-300
modules
Signal module (SM)
(Digital input modules,
digital output modules,
analog input modules,
...adapt various process signal
levels to the C7 CPU. Can be
connected to the C7 via an IM
621.
analog output modules,
analog input/output modules)
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.
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
1-5
Product Overview
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 ProT ool or Pro
...configures, assigns
parameters, programs, and tests
the C7.
T ool/Lite
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).
1-6
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
Product Overview
Overview of the C7
The SIMATIC C7-621/C7-621 AS-i devices consist of several components
that interact with each other:
S A programmable controller CPU of the SIMATIC S7-300 class (C7 CPU),
S A line-oriented SIMATIC OP (C7 OP),
S Integrated digital and analog I/Os (C7-621 I/Os),
S A P bus connection for expanding the C7-621 with an IM 621 using
S7-300 modules,
S An MPI interface for communication with the programming device/PC
and other S7 CPUs, C7 control systems and OPs,
S An AS-interface (AS-i) for connecting sensors and actuators (version
C7-621 AS-i, see Figure 1-4)
C7-621
C7 CPU C7 OP
I/Os
CPU memory
C7 CPU
C7
OP memory
C7 OP
P bus
MPI
interface
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).
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
1-7
Product Overview
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
ProT ool/Lite.
C7-621 AS-i
C7 CPU C7 OP
C7-AS-i
CPU memory
C7 CPU
P-Bus
MPI
interface
OP memory
C7 OP
Figure 1-4 Components of the C7-621 AS-i
STEP 7
ProTool Lite
or
ProTool
1-8
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
Installing and Preparing the C7
2
Chapter
Overview
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
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
2-1
Installing and Preparing the C7
2.1 Components and Accessories of the C7
Components
Supplied with the
C7-621
Components of the
C7-621 AS-i
Accessories
The following components are supplied with the C7-621:
S C7-621 (order number 6ES7 621-1AD00-0AE3)
S Grounding bar
S 6 shield clips
S Seal and 4 securing posts
S Set of connectors for C7 I/Os with key inserts
S Product information
The following components are supplied with the C7-621 AS-i:
S C7-621 AS-i (order number 6ES7 621-6BD00-0AE3)
S Seal and 4 securing posts
S Set of connectors for AS-i and C7 power supply with key inserts
S Product information
The following components can be ordered as accessories for the C7:
S Manual: 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
2-2
S Service package (seal and 4 securing posts) 6ES7 623-1AE00-3AA0
S Set of connectors for C7 I/Os with key inserts
6ES7 623-1AE00-4AA0
S IM 621 interface module with cable 6ES7 621-1AD00-6AE3
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
2.2 Installing a C7
Installing and Preparing the C7
The Installation
The C7 is designed for fixed installation in a switching panel or wiring closet
door. To install the C7, follow the steps outlined below:
Step Action
1. Cut out a section of the switching panel as shown in Figure 2-2.
2. Insert the sealing ring behind the front panel (see Figure 2-1).
3. Insert the C7 into the cutout in the switching panel.
4. Insert the 4 securing posts (see Figure 2-3) into the guides, pushing them
until the spring engages.
5. Screw the 4 securing screws supplied with the C7 into the 4 securing posts
(see Figure 2-4 ➀).
6. Tighten the 4 screws with a screwdriver (tightening torque 0.6 Nm).
Insert sealing ring here
Figure 2-1 Inserting the Sealing Ring
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
2-3
Installing and Preparing the C7
Figure 2-2 Dimension Drawings for the C7
Securing Post
Before Engaging
110
16868
120
159+0,5
Cutout in front panel
+0,5
Securing Post
Engaged
2-4
Figure 2-3 Securing Post Before Engaging
Figure 2-4 Securing Post Engaged, with Screw
➀
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
Installing and Preparing the C7
Releasing the
Securing Post
T o release a securing post, follow the steps outlined below:
Step Action
1. Loosen the screw.
2. Lever the securing post upwards (➀ in Figure 2-5).
3. Lever the securing post out of the guide (➁ in Figure 2-5).
➁
➀
Figure 2-5 Removing the Securing Post
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
2-5
Installing and Preparing the C7
2.3 Location of the C7
Points to Note
When Installing
the C7
When installing the C7, please remember the following points:
S The thickness of the switching panel can be between 1 and 4 mm. Make
sure that the sealing ring makes a tight seal all round.
S There must be a clearance of at least 50 mm above and below and 70 mm
at the sides of the C7 as shown in Figure 2-6.
S Make sure that the sealing ring on the front panel sits correctly.
S Choose a location for the C7 away from direct sunlight.
50
70 70
50
Figure 2-6 Minimum Clearances when Installing the C7
2-6
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
2.4 Electrical Installation and Pinouts
Installing and Preparing the C7
Overview
C7-621 and C7-621
AS-i
T o allow various components to be connected, the C7 is equipped with male
and female connectors.
Figure 2-7 illustrates the connection of the C7 power supply for a C7-621.
The pinouts of the connectors are shown in the following tables.
P bus (IM 621)
Functional
ground
MPI
Input 24 V DC
Figure 2-7 Power Supply Connectors for the C7-621
Input 24V DC
MPI
Functional Ground
P Bus (IM 621)
The pinout of the input 24V DC (C7 power supply) and DI/DO power supply
is shown below. The C7 CPU, C7 OP and digital/analog sections (C7-621)
are supplied with power.
Table 2-1 Pinout
Pin
L+ DC 24V
M (chassis M24V)
NC not connected
NC not connected
Function
Connector for MPI-compliant components.
Connect functional ground
(see Figure 2-7) to the closest available
point of the closet chassis using a cable lug and a cable with a minimum
cross-sectional area of 4 mm
2
.
T o connect an S7-300 expansion rack via an IM 621.
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
2-7
Installing and Preparing the C7
C7-621
Figure 2-8 illustrates the C7-621 with digital and analog connectors. These
connectors only exist on the C7-621. The pinouts of the connectors are
shown in the following tables.
Digital input (top)
left right
Digital output (bottom)
Analog input
Figure 2-8 View of a C7-621 with External I/O Ports
top
bottom
Analog output
Digital Input
Table 2-2 Pinout of the Digital Inputs
Pin
0.0 I124.0 Digital input 0
0.1 I124.1 Digital input 1
0.2 I124.2 Digital input 2
0.3 I124.3 Digital input 3
0.4 I124.4 Digital input 4
0.5 I124.5 Digital input 5
0.6 I124.6 Digital input 6
0.7 I124.7 Digital input 7
1.0 I125.0 Digital input 8
1.1 I125.1 Digital input 9
1.2 I125.2 Digital input 10
1.3 I125.3 Digital input 11
1.4 I125.4 Digital input 12
1.5 I125.5 Digital input 13
Signal Function
2-8
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
Digital Ouput
Installing and Preparing the C7
Table 2-2 Pinout of the Digital Inputs, continued
Pin FunctionSignal
1.6 I125.6 Digital input 14
1.7 I125.7 Digital input 15
Table 2-3 Pinout of the Digital Outputs
Pin Signal Function
0.0 Q124.0 Digital output 0
0.1 Q124.1 Digital output 1
0.2 Q124.2 Digital output 2
0.3 Q124.3 Digital output 3
0.4 Q124.4 Digital output 4
0.5 Q124.5 Digital output 5
0.6 Q124.6 Digital output 6
0.7 Q124.7 Digital output 7
1.0 Q125.0 Digital output 8
1.1 Q125.1 Digital output 9
1.2 Q125.2 Digital output 10
1.3 Q125.3 Digital output 11
1.4 Q125.4 Digital output 12
1.5 Q125.5 Digital output 13
1.6 Q125.6 Digital output 14
1.7 Q125.7 Digital output 15
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
2-9
Installing and Preparing the C7
Analog Input/
Output
Table 2-4 Pinout of the Analog Inputs/Outputs
Pin
AI1-U Analog input 1, signal input for voltage
AI1-I Analog input 1, signal input for current
AI1-M Analog input 1, reference potential
AI2-U Analog input 2, signal input for voltage
AI2-I Analog input 2, signal input for current
AI2-M Analog input 2, reference potential
AI3-U Analog input 3, signal input for voltage
AI3-I Analog input 3, signal input for current
AI3-M Analog input 3, reference potential
AI4-U Analog input 4, signal input for voltage
AI4-I Analog input 4, signal input for current
AI4-M Analog input 4, reference potential
AO-U Analog output, signal output für voltage
AO-I Analog output, signal output für current
AO-M Analog output, reference potential
Function
P Bus (IM 621)
P bus connector
(IM 621)
Figure 2-9 C7-621 with IM 621 Connector
2-10
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
Installing and Preparing the C7
C7-621 AS-i
AS-i Connector
The figure illustrates the AS-i connector of the C7-621 AS-i. This connector
only exists on the C7-621 AS-i.
AS-i connector
Figure 2-10 C7-621 AS-i with AS-i Connector
T o connect actuators, sensors and the AS-i power supply unit
Table 2-5 Pinout of the AS-Interface
Pin
AS-i - Connected internally with AS-i AS-i + Connected internally with AS-i +
AS-i - Connected internally with AS-i AS-i + Connected internally with AS-i +
Function
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
2-11
Installing and Preparing the C7
Device Connectors
of the C7
Table 2-6 Connecting Cables for the C7 Connectors
Connecting Cable Comments Schematic Connection
MPI Interface
PG cable - C7 PG
PROFIBUS LAN cable,
Interior cable,
Underground cable
and bus connector,
without PG interface,
with PG interface
and PROFIBUS bus terminal RS 485,
with 1.5 m, and 3 m cable,
with PG interface and 1.5 m cable.
Connectors for C7 I/Os
You can use the following connecting cables to connect the C7 to other
components:
The cable must
be assembled by
the user
Between ...
C7 S7-300
C7 S7-400
C7 OP
C7 PG
C7 C7
C7 S7-300
C7 S7-400
C7 OP
Connector for C7 I/Os
Conductor cross-section
16 pin
4 pin
0.2 to 2.5 mm
C7 external
sensor
2
2-12
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
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