Siemens SIMATIC S5 Series User manual
SIMATIC S5
Second Serial Interface of the
S5-95U Programmable Controller
Manual
EWA 4NEB 812 6095-02a
Edition 02
STEP ®, SIMATIC ® and SINEC ® are registered trademarks of Siemens AG
Copyright © Siemens AG 1993
Subject to change without prior notice.
”The reproduction, transmission or use of this document or
its contents is not permitted without express written authority.
Offenders will be liable for damages. All rights, including
rights created by patent grant or registration of a utility model
or design, are reserved.
EWA 4NEB 812 6095-02
Introduction
Description of the System
Computer Link with 3964(R) Transmission Protocol
ASCII Driver
Appendices
Point-To-Point Link with SINEC L1 Protocol
Index
1
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3
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A/B/C/
D/E
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EWA 4NEB 812 6095-02
S5-95U, Second Serial Interface Contents
Contents
Page
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
1 Description of the System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 1
1.1 Possible Applications of the S5-95U with Second Serial Interface . . . . . 1 - 2
1.2 Range of Functions of the Two Serial Interfaces . . . . . . . . . . . . . . . . . 1 - 5
1.3 Configuration of the PLC and Assignment of the Second Serial Interface 1 - 7
2 Point-To-Point Link with SINEC L1 Protocol . . . . . . . . . . . . . . . . . . . . . . . . 2 - 1
2.1 Connection of Nodes in a Point-To-Point Link . . . . . . . . . . . . . . . . . . . 2 - 4
2.2 Data Traffic and DB1 Parameter Assignment in a
Point-To-Point Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 6
2.3 Coordination Bytes in a Point-To-Point Link . . . . . . . . . . . . . . . . . . . . . 2 - 7
2.4 Program Example of Point-To-Point Link . . . . . . . . . . . . . . . . . . . . . . . 2 - 8
3 Computer Link with 3964(R) Transmission Protocol . . . . . . . . . . . . . . . . . . 3 - 1
3.1 Connection of Communication Partners in a Computer Link . . . . . . . . . 3 - 3
3.2 Data Traffic via Computer Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 5
3.3 Coordination Bytes for a Computer Link . . . . . . . . . . . . . . . . . . . . . . . 3 - 7
3.4 Parameterizing the Computer Link in DB1 . . . . . . . . . . . . . . . . . . . . . . 3 - 10
3.5 Sample Program for Computer Link . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 15
3.6 The 3964(R) Transmission Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 18
EWA 4NEB 812 6095-02
v
Contents S5-95U, Second Serial Interface
Page
4 ASCII Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 1
4.1 Connection of Communication Partners when Using the ASCII Driver . . . 4 - 2
4.2 Data Traffic with the ASCII Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 4
4.3 Coordination Bytes for Use of the ASCII Driver . . . . . . . . . . . . . . . . . . 4 - 6
4.4 Parameterizing the ASCII Driver in DB1 . . . . . . . . . . . . . . . . . . . . . . . . 4 - 8
4.5 Program Example for the ASCII Driver . . . . . . . . . . . . . . . . . . . . . . . . 4 - 17
Appendices
A DB1 Parameters, DB1 Parameterizing Errors . . . . . . . . . . . . . . . . . . . . . . . A - 1
B Positions of the Parameters in the System Data Area of the PLC,
ASCII Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B - 1
C List of Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C - 1
D Accessories and Order Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D - 1
E Technical Data, Scan On-Load Times of the PLC When Using the
Second Serial Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E - 1
Index
vi
EWA 4NEB 812 6095-02
S5-95U, Second Serial Interface Introduction
Introduction
The S5-95U programmable controller with second serial interface can communicate with other
devices via interface-specific functions.
In order to be able to use the performance capability of the second serial interface of the S5-95U
(SI2) in full, the user requires detailed information.
This Product Manual describes all functions which are possible at the second serial interface of the
S5-95U (SI2). It represents a supplement to the S5-90U/S5-95U System Manual. We assume
therefore that you have the S5-90U/S5-95U System Manual.
For information concerning both the S5-95U with SI2 and the S5-95U basic device, e.g. ”installation
guidelines”, ”startup and program testing”, refer to the S5-90U/ S5-95U System Manual. At
corresponding locations in the Product Manual, reference is made to sections in the System Manual.
Experience in installation and startup of electrotechnical plants is not necessary but helpful in order
to work successfully with this Product Manual.
On the following pages, you will find information which should facilitate handling of the Product
Manual.
Description of contents
• Section 1
This introductory section provides an overview of the devices that can be connected to the
second serial interface of the S5-95U. You will learn which communications mechanism you
should use for your specific application and which special features are to be considered if
devices are connected to both serial interfaces of the S5-95U.
• Sections 2, 3 and 4
In these sections, the different communications mechanisms are explained in detail by way of
examples.
• Appendices
The appendices contain overviews for regular use, such as all DB1 parameters for SI2 and
additional information for the ”system expert”, e.g. where the individual parameters are entered
in the system data area.
To make the startup phase of your system as short as possible, we recommend using this Product
Manual in the following way:
Read Section 1 since it tells you which communications mechanism is best suited to your
application
Read the relevant section on ”communications”(2, 3 or 4).
EWA 4NEB 812 6095-02
vii
Introduction S5-95U, Second Serial Interface
Conventions
The uniformity of the S5-90U/S5-95U System Manual and the Product Manual ”Second Serial
Interface of the S5-96U Programmable Controller”is assured.
All conventions which are listed in the introduction to the System Manual apply to this Product
Manual. Please refer to the System Manual.
For definitions of the terms ”Warning”, ”Danger”, ”Caution”and ”Note”please see the ”Safety-
Related Guidelines for the User”at the end of this introduction.
Courses
SIEMENS offers extensive training opportunities for SIMATIC S5 users.
For more detailed information please contact your Siemens office.
Reference material
Reference material is listed in the S5-90U/S5-95U System Manual, Appendix E.
Information on the range of devices available for an S5-95U programmable controller is provided in
the following catalogs:
• ST 52.1 ”SIMATIC S5-90U, S5-95U and S5-100U Programmable Controllers
ET 100U Electronic Terminator”
• ST 52.3 ”SIMATIC S5-115U, S5-115H and S5-115F Programmable Controllers”
• ST 54 ”SIMATIC S5-135U and S5-155U Programmable Controllers”
• ST 59 ”SIMATIC S5 Programmers”
• ST 80 ”COROS Control and Process Monitoring Systems”
• IPC 10 ”SICOMP Industrial PCs System Units and Standard Peripherals”
• IPC 12 ”SICOMP Industrial PCs Communications and Process Peripherals”
• PR 30 ”SICOMP M Computer-Systems”
• MOBY-I ”MOBY-I Identification System”
• MP 66 ”TELEPERM M Automation Systems AS 235, AS 235 H and AS 235 K”
Other components and modules (e.g. CPs and SINEC L1) are described in separate manuals. These
sources of information will be referred to in the relevant sections of this manual.
Sheets for corrections/suggestions are included at the end of this manual. Please enter your
suggestions for improvement, additions and corrections in these sheets and return them to us. In
this way, you enable us to improve the next edition.
viii
EWA 4NEB 812 6095-02
S5-95U, Second Serial Interface Introduction
Safety-Related Guidelines for the User
This document provides the information required for the intended use of the particular product. The
documentation is written for technically qualified personnel.
Quialified personnel as referred to in the safety guidelines in this document as well as on the product
itself are defined as follows:
• System planning and design engineers who are familiar with the safety concepts of automation
equipment.
• Operating personnel who have been trained to work with automation equipment and are
conversant with the contents of the document in as far as it is connected with the actual
operation of the plant.
• Commissioning and service personnel who are trained to repair such automation equipment and
who are authorized to energize, de-energize, clear, ground, and tag circuits, equipment, and
systems in accordance with established safety practice
Danger Notices
The notices and guidelines that follow are intended to ensure personal safety, as well as protect the
products and connected equipment against damage.
The safety notices and warnings for protection against loss of life (the users or service personnel) or
for protection against damage to property are highlighted in this document by the terms and
pictograms defined here. The terms used in this document and marked on the equipment itself have
the following significance.
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
contains important information about the
product, its operation or a part of the
document to which special attention is drawn.
Danger
indicates that death, severe personal injury
or substantial property damage will result if
proper precautions are not taken.
Proper Usage
Warning
• The equipment/system or the system components may only be used for the
applications described in the catalog or the technical description, and only in
combination with the equipment, components, and devices of other
manufacturers as far as this is recommended or permitted by Siemens.
• The product will function correctly and safely only if it is transported, stored, set
up, and installed as intended, and operated and maintained with care.
EWA 4NEB 812 6095-02
ix
1 Description of the System
1.1 Possible Applications of the S5-95U with Second Serial
Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 2
1.2 Range of Functions of the Two Serial Interfaces . . . . . . . . . . . . . . 1 - 5
1.3 Configuration of the PLC and Assignment of the
Second Serial Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 7
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EWA 4NEB 812 6095-02
Figures
1.1 Device Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 2
1.2 S5-95U LEDs, Controls and Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 7
1.3 Pin Assignments of the Second Serial Interface of the S5-95U . . . . . . . . . 1 - 8
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Tables
1.1 Criteria for Selecting the Communications Mechanism . . . . . . . . . . . . . . . 1 - 3
1.2 Characteristics of the Communications Mechanisms . . . . . . . . . . . . . . . . . 1 - 4
1.3 Overview of the Functions Possible at SI1 and SI2 interfaces . . . . . . . . . . 1 - 5
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EWA 4NEB 812 6095-02
S5-95U, Second Serial Interface Description of the System
1 Description of the System
This section contains information on the following:
• Performance range and the advantages which the second serial interface offers to you
• Devices you can connect to the second serial interface
• Criteria according to which you can determine the ”correct”communications mechanism for
your specific application
• Features of the communications mechanisms
• Special features to be considered when operating two serial interfaces
• Display and control elements of the PLCs and the assignment of the SI2 interface.
The flexibility of a logic control is of great importance for the productivity of a manufacturing plant.
To achieve a high degree of flexibility, complex control functions can be distributed among several
devices.
This means
• You obtain small and handy units. You can easily configure, commission, diagnose, modify,
operate and monitor the overall process
• You have a better control of your plant because when one unit fails, the remaining system can
continue to work.
When distributing the control functions among several devices, the information flow between the
individual devices must be guaranteed in order
• to exchange data between individual programmable controllers,
• to monitor, operate and control manufacturing plants centrally,
• to be able to compile management information (e.g. production and stock data).
For these reasons, the S5-95U programmable controller with two serial interfaces has been
developed as a variant of the S5-95U basic unit.
The second serial interface provides the following communication possibilities:
• Communication via the SINEC L1 local area network (LAN)
• Point-to-point link (SINEC L1 protocol)
• Computer link with the 3964(R) transmission protocol
• ASCII driver, e.g. for visualization of process sequences
• Programmer functions for operator control and monitoring of processes
The second serial interface offers the following advantages:
• Parallel operation of programmer and operator panel at the S5-95U is possible
• Parallel operation of programmer/operator panel and SINEC L1 at the S5-95U (slave) is possible
• Parallel operation of programmer/operator panel and interfacing with a further partner is possible
via:
- Point-to-point link (SINEC L1 protocol)
- Computer link with 3964(R) transmission protocol
- ASCII drivers
• Low-cost interface to a further PLC (SIMATIC S5) via point-to-point link
e.g. S5-95U with S5-100U (CPU 102); no CP required
• Simple connection to SIEMENS devices via computer link
e.g. S5-95U with SICOMP PC
• Simple connection to third-party devices via ASCII driver
e.g. connection of a barcode reader to an S5-95U
EWA 4NEB 812 6095-02
1-1
Description of the System S5-95U, Second Serial Interface
1.1 Possible Applications of the S5-95U with Second Serial Interface
The following overview shows you:
• which devices/systems can communicate with the S5-95U via the second serial interface of the
S5-95U and
• which communications mechanism for which node can be used in the S5-95U.
Figure 1-1 Device Configurations
SINEC L1 LAN
S5-95U can be a slave
in a SINEC L1 LAN
Point-to-point link
S5-95U can be
master or slave
SIMATIC devices in
general *
Devices which can
handle the
3964(R)
transmission
protocol
SIEMENS device in
general *
Devices which
send/receive with-
out transmission
protocol
Third-party devices
with limited
processing capacity in
general
Devices that can be connected (in general)
Programmer
functions
( Sec. 1.3)
Computer link with
3964(R) trans-
mission protocol
( Sec. 3)
ASCII driver
( Sec. 4)
S5-95U
Second serial
interface
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SINEC L1 / Point-
to-point link
( Sec. 2)
Communications mechanisms
e.g.:
- PG 605
- PG 710 to PG 770
- COROS TD 10,
TD 20
- COROS OP 15,
OP 20, OP 30
- OP 393
e.g.:
- S5-90U, S5-95U
- S5-100U (CPU 102/
103)
- S5-115U (CPU 941/
942/943/944)
- CP 521 SI
- CP 530
e.g.:
- SICOMP PC
- SICOMP M
- Teleperm M
- Moby I
- CP 523
- CP 524
- CP 525
e.g.:
- Printer
- Terminals
- Barcode reader
- Modems
*On account of the widespread use of SINEC L1, numerous third-party manufacturers offer device interfaces for
SINEC L1 and/or 3964(R) transmission protocol.
Devices that can be connected (in particular)
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Programmers
for SIMATIC S5
Control and
monitoring systems
for SIMATIC S5
1-2
EWA 4NEB 812 6095-02
S5-95U, Second Serial Interface Description of the System
Selection of communications mechanism
The optimum communications mechanism for all communication partners is not determined by the
device configuration alone. Thus it is possible to use the point-to-point link, the computer link or the
ASCII driver for PLCs and CPs as communication partners of the S5-95U.
These three communications mechanisms are therefore compared in the following table
( Table 1-1).
You can decide by means of the table which are the important criteria for your specific application
and consequently, which communications mechanism you use.
Table 1-1 Criteria for Selecting the Communications Mechanism
*e.g. transmission rate, data format and parity ( Section 3; 4)
SIMATIC
PLC
SIEMENS
Device
Interface with Possible Possible
Yes Possible
Third-
Party
Device Possible Possible Yes
Yes
Possible
Selection Criteria ASCII DriverPoint-to-P. Link w.
SINEC L1 Protocol 3964(R) Computer
link
Yes
Safe Data Transmission
Ensured by Protocol Yes No
Maximum Number of
Net Data per Request 1024 bytes1024 bytes64 bytes
Flexible Transmission
Format can be used*YesNo Yes
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EWA 4NEB 812 6095-02
1-3
Description of the System S5-95U, Second Serial Interface
The following overview ( Table 1-2) contains the main characteristics of all communications
mechanisms supported by the SI2 interface.
Table 1-2 Characteristics of the Communications Mechanisms
SINEC L1 / Point-
to-Point Link
ASCII Driver
Features
3964(R) Computer
Link
Communications
Mechanism
• The S5-95U can access the SINEC L1 LAN via SI1 or SI2.
• Point-to-point link making use of the SINEC L1 protocol is possible
(1 S5-95U+1 communication partner),
for this purpose, no CP 530 is necessary.
• Safe process data transmission
• Data volume per request: 64 bytes
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• Bidirectional data communication with protocol protection
mechanism (in two directions)
• The LAN must be able to process the 3964(R) protocol
• Safe process data transmission
• Data volume per request: Maximum of 1024 bytes
• Bidirectional data communication without protocol-dependent error
detection and correction functions
• Flexible transmission format can be set, resulting in easy adaptation
to the LAN
• The ASCII driver is especially suitable for visualization of process
sequences and input/output of messages
• Data volume per request: Maximum of 1024 bytes
Programmer
Functions • PLC is programmed with programmer or process functions in the
PLC are monitored with operator panel
• Programmer functions are especially suitable for startup of PLCs
and input and output of messages
• An operator panel can be permanently connected to Si1 or SI2, a
serial interface remains free for a programmer.
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1-4
EWA 4NEB 812 6095-02
S5-95U, Second Serial Interface Description of the System
1.2 Range of Functions of the Two Serial Interfaces
You can connect programmers and operator panels at both serial interfaces.
The entire range of functions of the interfaces is listed in Table 1-3. The program execution period
may be extended when connecting a programmer, operator panel or SINEC L1 to the SI1 or SI2
interface (for scan on-load times of the PLC, see Appendix E).
Note
If a function is not parameterized in DB1, the driver number ”00H”is automatically
written in the system data during startup of the PLC ( Appendix B, system data word
46); i.e. you can operate a programmer or operator panel at the SI2 interface
immediately after the restart of the PLC.
Table 1-3 Overview of the Functions Possible at SI1 and SI2 interfaces
Input block INPUT X X
Output block OUTPUT X X
Test TEST
Program test PROG TEST - -
END program test END TEST - -
Signal status display STATUS X -
PLC functions PC FCT
PLC restart START X X
PLC STOP STOP X X
Compress COMPRESS X X
STATUS variable STAT VAR X X
Force FORCE - -
Force variable FORCE VAR X X
Possible at SI1 Possible at SI2Programmer Function
Designation Abbreviation
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PLC information PC INFO
Output addresses OUTP ADDR X X
Memory configuration MEM CONF X -
System parameter SYSPAR X X
Block stack BSTACK X -
Interrupt stack ISTACK X X
EWA 4NEB 812 6095-02
1-5
Description of the System S5-95U, Second Serial Interface
Table 1-3 Overview of the Functions Possible at Interfaces SI1 and SI2 (Continued)
Possible at SI1 Possible at SI2Programmer Function
Designation Abbreviation
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Function Possible at SI2Possible at SI1
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Operator panel function
SINEC L1 slave
X X
X X
Point-to-point link - X
3964(R) computer link - X
ASCII driver - X
Auxiliary functions AUX FCT
Transfer TRANSFER X X
Delete DELETE X X
Directory DIR X X
Master
Slave X X
Concurrent use of interfaces SI1 and SI2 with programmer/operator panel functions
There are restrictions on the concurrent use of the two interfaces SI1 and SI2.
Certain requests of a programmer/operator panel to the other interface are not possible depending
on the status (activity) of an interface.
If this occurs, the function is aborted by the operating system of the CPU at the relevant interface.
The following error message appears: ”AS function disabled: current function”.
This message draws your attention to the fact that a function which blocks the requested function is
currently being executed on the other interface.
Example: If ”TEST STATUS”runs at SI1, ”INPUT BLOCK”is not possible at SI2.
At the SI2 interface, no programmer/operator panel function is possible if one of the following
functions is activated:
• Point-to-point link,
• Computer link
or
• ASCII driver.
1-6
EWA 4NEB 812 6095-02
I
S5-95U,
Second
Serial
Interface
Description of the System
1.3
Configuration of the PLC and Assignment of the Second Serial
Interface
The figure
below
shows all displays, controls and interfaces of the S5-95U (6ES5095-8MC01).
o-
1
@-
@---
@-
o-
5
@-
SIEMENS
OUT
,-4V
DIGITAL
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0 ❑ 0 0
rlocl
1
1
1
,
1
WA
0231
@
SIMATIC
S5-95U
00
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00
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0000
000
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00
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Oo
00
Q
oqj~
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OUNTER
kHzRkHz
ITERRUPT
o
m
43
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o
00
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00
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00
f-o
7
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8
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9
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10
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11
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12
--@
8
1
2
!
3
4
5
6
7
8
Battery compartment
Front connector
for digital inputs (1 32.0 . . . I 33.7) and
for digital outputs (Q 32.0 . . . Q 33.7)
Battery low LED
On/off switch
LEDs
for digital inputs and outputs
Terminals for connecting the
power supply
Cable connector
for S5-1OO modules
Interface for analog inputs (IW 40 . . .
IW
54) and
for analog outputs (QW 40)
B
g
Second serial interface
10
RUN/STOP LEDs: green LED
+
RUN; red LED
+
STOP
,1
RUN/STOP/COPY SWITCH
12
Receptacle for user
submodule:
E(E)PROM
IS
Interface for PG, PC, OP or
SINEC
L1 LAN
,4 Interface for interrupt inputs (1 34.0 . . . 34.3) and
for counter inputs (IW 36,
IW
38)
Figure 1-2 S5-95U LEDs, Controls and Interfaces
EkVA
4NEB 8126095-02
1-7
Description of the System S5-95U, Second Serial Interface
The second serial interface is non-floating. The cables are connected to a 15-pin sub D socket.
Assignment of the 15-pin sub D socket:
Figure 1-3 Pin Assignments of the Second Serial Interface of the S5-95U
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10
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1
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M*(Reference potential)
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TTY OUT- (TTYtransmission line -)
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a
TTY OUT+ (TTYtransmission line +)
a
a
a
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a
M*(Reference potential)
a
a
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a
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a
4
a
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a
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not assigned
a
a
a
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3
a
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2
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a
TTY IN- (TTY receive line -)
a
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a
M*(Reference potential)
a
a
a
a
a
a
a
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a
a
a
a
a
a
15
a
a
a
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14
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13
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12
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11
a
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9
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M*(Reference potential)
a
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a
+5.2V (for external loads)
a
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a
+5.2V (for external loads)
a
a
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a
20 mA (TTY current source)
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a
M*(Reference potential)
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a
M*(Reference potential)
a
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a
20 mA (TTY current source)
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a
a
TTY IN+ (TTY receive line +)
a
a
a
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a
*M ˆ= M internal (still available at interface SI1)
1-8
EWA 4NEB 812 6095-02
2 Point-To-Point Link with SINEC L1 Protocol
2.1 Connection of Nodes in a Point-To-Point Link . . . . . . . . . . . . . . . . 2 - 4
2.2 Data Traffic and DB1 Parameter Assignment
in a Point-To-Point Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 6
2.3 Coordination Bytes in a Point-To-Point Link . . . . . . . . . . . . . . . . . 2 - 7
2.4 Program Example of Point-To-Point Link . . . . . . . . . . . . . . . . . . . 2 - 8
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EWA 4NEB 812 6095-02
Figures
2.1 Structure of a SINEC L1 LAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 1
2.2 Structure of a Point-To-Point Link with BT 777 Transceiver . . . . . . . . . . . . 2 - 2
2.3 Structure of a Point-To-Point Link with Direct Cable . . . . . . . . . . . . . . . . . 2 - 2
2.4 Pin Assignments Point-To-Point Master (TTY Active) -
Point-To-Point Slave (TTY Passive) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 4
2.5 Pin Assignments S5-95U (TTY Active) - CP 521 SI (TTY Passive) . . . . . . . 2 - 5
2.6 Structure of the Coordination Bytes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 7
2.7 Program Structure Point-To-Point Link . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 8
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Tables
2.1 Communication Partners in the Point-To-Point Link . . . . . . . . . . . . . . . . . 2 - 3
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EWA 4NEB 812 6095-02
Other manuals for SIMATIC S5 Series
2
This manual suits for next models
1
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