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S7-1200 Programmable controller

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SIMATIC

S7-1200 Programmable controller

System Manual

V4.2, 09/2016

A5E02486680

-AK

Preface

Product overview

New features

STEP 7 programming

software

Installation

PLC concepts

Device configuration

Programming concepts

Basic instructions

Extended instructions

Technology instructions

Communication

Web server

Communication processor

and Modbus TCP

TeleService communication

(SMTP email)

Online and diagnostic tools

Technical specifications

Calculating a power budget

Ordering Information

Device exchange and spare

parts compatibility

S7-1200 Programmable controller1
Preface3
Table of contents7
1 Product overview27
- 1.1 Introducing the S7-1200 PLC27
- 1.2 Expansion capability of the CPU30
- 1.3 Basic HMI panels32
2 New features33
3 STEP 7 programming software37
- 3.1 System requirements38
- 3.2 Different views to make the work easier39
- 3.3 Easy-to-use tools41
- 3.4 Backward compatibility51
4 Installation53
- 4.1 Guidelines for installing S7-1200 devices53
- 4.2 Power budget56
- 4.3 Installation and removal procedures57
- 4.4 Wiring guidelines76
5 PLC concepts83
- 5.1 Execution of the user program83
- 5.2 Data storage, memory areas, I/O and addressing117
  - 5.2.1 Accessing the data of the S7-1200117
- 5.3 Processing of analog values123
- 5.4 Data types125
- 5.5 Using a memory card138
- 5.6 Recovery from a lost password151
6 Device configuration153
- 6.1 Inserting a CPU154
- 6.2 Uploading the configuration of a connected CPU156
- 6.3 Adding modules to the configuration158
- 6.4 Configuration control159
- 6.5 Changing a device170
- 6.6 Configuring the operation of the CPU170
- 6.7 Configuring multilingual support175
- 6.8 Configuring the parameters of the modules177
- 6.9 Configuring the CPU for communication179
- 6.10 Time synchronization181
7 Programming concepts183
- 7.1 Guidelines for designing a PLC system183
- 7.2 Structuring your user program185
- 7.3 Using blocks to structure your program187
- 7.4 Understanding data consistency198
- 7.5 Programming language199
- 7.6 Protection210
- 7.7 Downloading the elements of your program216
- 7.8 Synchronizing the online CPU and offline project219
- 7.9 Uploading from the online CPU221
  - 7.9.1 Comparing the online CPU to the offline CPU221
- 7.10 Debugging and testing the program222
8 Basic instructions227
- 8.1 Bit logic operations227
- 8.2 Timer operations236
- 8.3 Counter operations244
- 8.4 Comparator operations250
- 8.5 Math functions255
- 8.6 Move operations265
- 8.7 Conversion operations290
- 8.8 Program control operations302
- 8.9 Word logic operations326
- 8.10 Shift and rotate332
  - 8.10.1 SHR (Shift right) and SHL (Shift left) instructions332
  - 8.10.2 ROR (Rotate right) and ROL (Rotate left) instructions333
9 Extended instructions335
- 9.1 Date, time-of-day, and clock functions335
- 9.2 String and character346
- 9.3 Distributed I/O (PROFINET, PROFIBUS, or AS-i)384
- 9.4 PROFIenergy419
- 9.5 Interrupts420
- 9.6 Alarms436
  - 9.6.1 Gen_UsrMsg (Generate user diagnostic alarms)436
- 9.7 Diagnostics (PROFINET or PROFIBUS)439
- 9.8 Pulse487
- 9.9 Recipes and Data logs498
  - 9.9.1 Recipes498
  - 9.9.2 Data logs509
- 9.10 Data block control534
- 9.11 Address handling544
- 9.12 Common error codes for the Extended instructions553
10 Technology instructions555
- 10.1 Counting (High-speed counters)555
- 10.2 PID control588
- 10.3 Motion control653
11 Communication799
- 11.1 Asynchronous communication connections801
- 11.2 PROFINET804
- 11.3 PROFIBUS968
- 11.4 AS-i975
- 11.5 S7 communication986
12 Web server1001
- 12.1 Enabling the Web server1003
- 12.2 Configuring Web server users1005
- 12.3 Accessing the Web pages from a PC1007
- 12.4 Accessing the Web pages from a mobile device1009
- 12.5 Using a CP module to access Web pages1010
- 12.6 Standard Web pages1011
- 12.7 User-defined Web pages1040
- 12.8 Constraints1082
13 Communication processor and Modbus TCP1087
- 13.1 Using the serial communication interfaces1087
- 13.2 Biasing and terminating an RS485 network connector1088
- 13.3 Point-to-point (PtP) communication1090
- 13.4 Universal serial interface (USS) communication1146
- 13.5 Modbus communication1166
- 13.6 Legacy PtP communication (CM/CB 1241 only)1217
  - 13.6.1 Legacy point-to-point instructions1218
- 13.7 Legacy USS communication (CM/CB 1241 only)1234
- 13.8 Legacy Modbus TCP communication1249
- 13.9 Legacy Modbus RTU communication (CM/CB 1241 only)1269
- 13.10 Industrial Remote Communication (IRC)1288
14 TeleService communication (SMTP email)1301
- 14.1 TM_Mail (Send email) instruction1301
15 Online and diagnostic tools1309
- 15.1 Status LEDs1309
- 15.2 Going online and connecting to a CPU1313
- 15.3 Assigning a name to a PROFINET IO device online1314
- 15.4 Setting the IP address and time of day1316
- 15.5 Resetting to factory settings1317
- 15.6 Updating firmware1318
- 15.7 Formatting a SIMATIC memory card from STEP 71320
- 15.8 CPU operator panel for the online CPU1321
- 15.9 Monitoring the cycle time and memory usage1321
- 15.10 Displaying diagnostic events in the CPU1322
- 15.11 Comparing offline and online CPUs1323
- 15.12 Performing an online/offline topology comparison1324
- 15.13 Monitoring and modifying values in the CPU1325
- 15.14 Downloading in RUN mode1335
- 15.15 Tracing and recording CPU data on trigger conditions1347
- 15.16 Determining the type of wire break condition from an SM 1231 module1349
- 15.17 Backing up and restoring a CPU1352
A Technical specifications1359
- A.1 Siemens Online Support website1359
- A.2 General technical specifications1359
- A.3 PROFINET interface X1 port pinouts1369
- A.4 CPU 1211C1370
  - A.4.1 General specifications and features1370
  - A.4.2 Timers, counters, and code blocks supported by CPU 1211C1372
  - A.4.3 Digital inputs and outputs1376
  - A.4.4 Analog inputs1377
  - A.4.5 CPU 1211C wiring diagrams1379
- A.5 CPU 1212C1382
  - A.5.1 General specifications and features1382
  - A.5.2 Timers, counters, and code blocks supported by CPU 1212C1384
  - A.5.3 Digital inputs and outputs1388
  - A.5.4 Analog inputs1390
  - A.5.5 CPU 1212C wiring diagrams1392
- A.6 CPU 1214C1395
  - A.6.1 General specifications and features1395
  - A.6.2 Timers, counters and code blocks supported by CPU 1214C1397
  - A.6.3 Digital inputs and outputs1401
  - A.6.4 Analog inputs1403
  - A.6.5 CPU 1214C wiring diagrams1405
- A.7 CPU 1215C1409
  - A.7.1 General specifications and features1409
  - A.7.2 Timers, counters and code blocks supported by CPU 1215C1411
  - A.7.3 Digital inputs and outputs1415
  - A.7.4 Analog inputs and outputs1417
  - A.7.5 CPU 1215C wiring diagrams1420
- A.8 CPU 1217C1425
  - A.8.1 General specifications and features1425
  - A.8.2 Timers, counters and code blocks supported by CPU 1217C1427
  - A.8.3 Digital inputs and outputs1430
  - A.8.4 Analog inputs and outputs1435
  - A.8.5 CPU 1217C wiring diagrams1438
  - A.8.6 CPU 1217C Differential Input (DI) detail and application example1440
  - A.8.7 CPU 1217C Differential Output (DQ) detail and application example1441
- A.9 Digital signal modules (SMs)1442
  - A.9.1 SM 1221 digital input specifications1442
  - A.9.2 SM 1222 8-point digital output specifications1444
  - A.9.3 SM 1222 16-point digital output specifications1446
  - A.9.4 SM 1223 digital input/output V DC specifications1451
  - A.9.5 SM 1223 digital input/output V AC specifications1456
- A.10 Analog signal modules (SMs)1459
  - A.10.1 SM 1231 analog input module specifications1459
  - A.10.2 SM 1232 analog output module specifications1464
  - A.10.3 SM 1234 analog input/output module specifications1466
  - A.10.4 Step response of the analog inputs1470
  - A.10.5 Sample time and update times for the analog inputs1470
  - A.10.6 Measurement ranges of the analog inputs for voltage and current (SB and SM)1471
  - A.10.7 Measurement ranges of the analog outputs for voltage and current (SB and SM)1472
- A.11 Thermocouple and RTD signal modules (SMs)1473
  - A.11.1 SM 1231 Thermocouple1473
    - A.11.1.1 Basic operation for a thermocouple1476
    - A.11.1.2 Selection tables for the SM 1231 thermocouple1477
  - A.11.2 SM 1231 RTD1479
    - A.11.2.1 Selection tables for the SM 1231 RTD1482
- A.12 Technology modules1485
  - A.12.1 SM 1278 4xIO-Link Master SM1485
- A.13 Digital signal boards (SBs)1500
  - A.13.1 SB 1221 200 kHz digital input specifications1500
  - A.13.2 SB 1222 200 kHz digital output specifications1502
  - A.13.3 SB 1223 200 kHz digital input / output specifications1505
  - A.13.4 SB 1223 2 X 24 V DC input / 2 X 24 V DC output specifications1508
- A.14 Analog signal boards (SBs)1511
  - A.14.1 SB 1231 1 analog input specifications1511
  - A.14.2 SB 1232 1 analog output specifications1514
  - A.14.3 Measurement ranges for analog inputs and outputs1516
  - A.14.4 Thermocouple signal boards (SBs)1519
    - A.14.4.1 SB 1231 1 analog thermocouple input specifications1519
    - A.14.4.2 Basic operation for a thermocouple1520
  - A.14.5 RTD signal boards (SBs)1523
    - A.14.5.1 SB 1231 1 analog RTD input specifications1523
    - A.14.5.2 Selection tables for the SB 1231 RTD1526
- A.15 BB 1297 Battery board1528
- A.16 Communication interfaces1530
  - A.16.1 PROFIBUS1530
  - A.16.2 CP 1242-71534
  - A.16.3 CM 1243-2 AS-i master1538
    - A.16.3.1 Technical data for the AS-i master CM 1243-21538
    - A.16.3.2 Electrical connections of the AS-i master1539
  - A.16.4 RS232, RS422, and RS4851541
- A.17 TeleService (TS Adapter and TS Adapter modular)1546
- A.18 SIMATIC memory cards1546
- A.19 Input simulators1547
- A.20 S7-1200 Potentiometer module1549
- A.21 I/O expansion cable1550
- A.22 Companion products1551
  - A.22.1 PM 1207 power module1551
  - A.22.2 CSM 1277 compact switch module1551
  - A.22.3 CM CANopen module1552
  - A.22.4 RF120C communications module1552
  - A.22.5 SM 1238 Energy meter module1553
  - A.22.6 SIWAREX electronic weighing systems1553
B Calculating a power budget1555
C Ordering Information1559
- C.1 CPU modules1559
- C.2 Signal modules (SMs), signal boards (SBs), and battery boards (BBs)1560
- C.3 Communication1561
- C.4 Fail-Safe CPUs and signal modules1563
- C.5 Other modules1563
- C.6 Memory cards1563
- C.7 Basic HMI devices1564
- C.8 Spare parts and other hardware1564
- C.9 Programming software1569
D Device exchange and spare parts compatibility1571
- D.1 Exchanging a V3.0 CPU for a V4.2 CPU1571
- D.2 S7-1200 V3.0 and earlier terminal block spare kits1578
Index1581
- &1581
- /1581
- =1581
- >1581
- A1581
- B1582
- C1583
- D1586
- E1588
- F1591
- G1591
- H1592
- I1592
- J1597
- K1598
- L1598
- M1598
- N1600
- O1601
- P1601
- Q1605
- R1605
- S1606
- T1609
- U1611
- V1612
- W1612
- X1613

CPU Type	CPU 1211C, CPU 1212C, CPU 1214C, CPU 1215C, CPU 1217C
Communication	PROFINET
Analog Inputs	2
Analog Outputs	2
Power Supply	24V DC
Expansion Modules	Signal Modules (SM), Communication Modules (CM)
Programming Languages	LAD, FBD, SCL
Dimensions	90 mm x 100 mm x 75 mm
Program Memory	50 KB to 150 KB (depending on model)

Siemens SIMATIC S7-1200 System Manual

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