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Siemens Simatic S7-400 Equipment Manual
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SIMA
TIC
S7-400
Point-t
o-point connection CP 440
Installation and Par
amet
er
Assignment
Equipment Manual
03/2022
A5E00057742-AE
Preface
Product Description
1
Basic Principles of Serial
Data T
ransmission
2
Commissioning the CP 440
3
Mounting the CP 440
4
Conguring
and Parameter
Assignment the CP 440
5
Communication via
F
unction Blocks
6
Startup Characteristics and
Operating
Mode
T
r
ansitions
of the CP 440
7
Diagnostics with the CP 440
8
Programming Exam
ple for
Standard F
unction Block
s
9
T
echnical
specications
10
Connecting cables
11
Accessor
ies and order
numbers
12
Literature
13
2
Table of Contents
Preface
3
Table of Contents
7
Product Description
11
Uses of the CP 440
11
Components Required for a Point-To-Point Connection with the CP 440
12
Required Hardware Components
12
Required Software Components
13
Incompatible CPU Versions
13
Design of the CP 440
14
Features of the X27 (RS 422/485) Interface
16
Basic Principles of Serial Data Transmission
17
Serial Transmission of a Character
17
Transmission Procedure with a Point-To-Point Connection
20
Transmission Integrity
21
Data Transmission with the ASCII Driver
23
Sending Data with the ASCII Driver
24
Receiving Data with the ASCII Driver
26
Topologies between the Communication Partners
32
Data Transmission with the 3964(R) Procedure
35
The Control Characters of the 3964(R) Procedure
35
Block Checksum
37
Sending Data with 3964(R)
38
Receiving Data with 3964(R)
41
Handling Corrupt Data
46
Commissioning the CP 440
49
Mounting the CP 440
53
CP 440 Slots
53
Mounting and Dismounting the CP 440
53
Installation Steps
54
Removal Steps
54
Configuring and Parameter Assignment the CP 440
55
Assigning Parameters to the CP 440
55
Installing the Programming Interface
56
Parameters for the Communications Protocols
56
Configuration Data
57
Introduction
57
Basic Parameters of the CP 440
57
Configuration Data of the ASCII Driver
58
Configuration Data of the 3964(R) Procedure
63
Managing the Parameter Data
68
Firmware Updates
69
Subsequent Loading of Firmware Updates
69
Viewing the Firmware Version
71
Communication Via Function Blocks
73
Overview of the Function Blocks
73
Notes on Program Structure
75
Using the Function Blocks
75
S7 Transmits Data to a Communication Partner, 10 SEND_440 FB
76
S7 Receives Data from a Communication Partner, 9 RECV_440 FB
79
Deleting the Receive Buffer (11 "RES_RECV" FB)
82
Programming the Function Blocks
85
Supplying the Block Parameters
85
General Information on Program Processing
88
Technical Specifications of the Function Blocks
89
Startup Characteristics and Operating Mode Transitions of the CP 440
91
Operating Modes of the CP 440
91
Startup Characteristics of the CP 440
91
Behavior of the CP 440 on Operating Mode Transitions of the CPU
92
Behavior of the Sender Line Drivers of the Serial Interface During Particular Operating Modes of the CP 440
93
Diagnostics with the CP 440
95
Diagnostics Functions of the CP 440
95
Diagnostics Via the Display Elements of the CP 440
96
Diagnostics Messages of the Function Blocks
97
Diagnostics Via the Diagnostic Buffer of the CP 440
104
Programming Example for Standard Function Blocks
107
General Information
107
Device Configuration
107
Settings
108
Blocks Used
108
Installation, Error Messages
111
Activation, Startup Program and Cyclic Program
111
CP440 SEND RECV" Program Example
111
CP440 1 CYC" Program Example
113
CP440 ASCII BCC" Program Example
113
CP440 MASTER" Program Example
114
CP440 SLAVE" Program Example
115
Technical Specifications
117
Technical Specifications of the CP 440
117
Standards and Approvals
120
Currently Valid Markings and Approvals
120
CE Approval
121
CCC Approval
122
UKCA Approval
122
Explosion Protection
123
Culus Approval
124
Culus HAZ. LOC. Approval
124
Cfmus Approval
124
Approval for Australia and New Zealand
125
Approval for the Korea and South Korea
125
Connecting Cables
127
X27 (RS 422/485) Interface of the CP 440
127
Cables
127
Accessories and Order Numbers
133
Literature
135
Literature on SIMATIC S7
135
Index
137
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Reference Manual
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Installation Manual
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Hardware And Installation Manual
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Configuration And Use Manual
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Operating Instructions
136 pages
Function Manual
332 pages
Getting Started
36 pages
Application Description
84 pages
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Siemens Simatic S7-400 Specifications
General
Brand
Siemens
Model
Simatic S7-400
Category
Controller
Language
English
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