Siemens Simatic S7 Series System Manual

Libraries
9.2 USS library instructions
S7-200 SMART
430 System Manual, 09/2015, A5E03822230-AC
Network 3 Network 3:
Read a Word parameter from Drive 0.
Read parameter 5, index 0:
1. Save the state of M10.5 to a temporary location so
that this network displays in LAD.
2. Save the rising edge pulse of I0.5 to a temporary
L location so that it can be passed to the subrou-
tine.
LD M10.5
= L60.0
LD M10.5
EU
= L63.7
LD L60.0
CALL USS_RPM_W, L63.7, 0, 5, 0, &VB20,
M1.1, VB10, VW12
Network 4 Network 4:
Write a Word parameter to Drive 0. Write parame-
ter 2000, index 0.
Note: This STL code does not compile to LAD or FBD.
LD M10.6
= L60.0
LD M10.6
EU
= L63.7
LDN SM0.0
= L63.6
LD L60.0
CALL USS_WPM_R, L63.7, L63.6, 0, 2000,
0, 50.0, &VB40, M1.2, VB14
Refer to "Using the USS protocol instructions" (Page 416) for and a listing of USS protocol
instructions and error codes and example programs.

Siemens Simatic S7 Series Specifications

General

CPU	Varies by model (e.g., S7-300, S7-400, S7-1200, S7-1500)
Communication Interfaces	PROFIBUS, PROFINET, Ethernet, MPI
Programming	TIA Portal, STEP 7
Programming Languages	LAD, FBD, STL, SCL, GRAPH
I/O Modules	Digital, Analog, Specialty modules available
Operating Temperature	0°C to 60°C (standard models)
Mounting	DIN rail mounting
Operating Voltage	24V DC or 120/230V AC (varies by model)
Protection Class	IP20 (standard models)
Memory	Varies depending on the S7 model. Includes work memory (RAM) for program execution, load memory (EEPROM or Flash) for program storage, and system memory for operating system functions. Memory sizes range from kilobytes to megabytes.