Siemens SIMATIC S7-1200 Reference Manual

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Modifications and blocks S7-300 S7-400 S7-1200
V4.0 or
higher
S7-1500 S7-1200
V1.0 - 2.1
S7-1200
V2.2 - V3.0
Motion Control technology objects:
Changes to MC Servo cycle clock,
change from free
-running to cyclical
(and vice versa). Changes to the
hardware interface of the TO
-- -- -- STOP -- --
(init) means that the CPU overwrites the actual values of the DBs with start values during downloading.
Comparison list
Validity and general conditions
• SIMATIC STEP 7 version 15 or higher
• The contents of the S7-1500 column also apply to SIMATIC S7-1500 Software Controller CPU 150xS
• SIMATIC S7-1200 firmware 4.2 or higher. SIMATIC S7-1200 only supports LAD, FBD and SCL.
• SIMATIC S7-1500 firmware 2.5 or higher
• STL: Some instructions have to be called via CALL.
• The special features of the S7-400 H-Systems are not taken into consideration.
• Some system state lists (SSLs) for SIMATIC S7-300/400 contain similar information such as function calls with the
SIMATIC S7-1200/1500.

Siemens SIMATIC S7-1200 Specifications

General

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)