Siemens Simatic S7 Series System Manual

Program instructions
7.9 PID
S7-200 SMART
270 System Manual, 09/2015, A5E03822230-AC
Screen
Description
Set the following loop parameters:
• Gain (Default value = 1.00)
• Sample Time (Default value =
1.00)
• Integral Time (Default value =
10.00)
• Derivative Time (Default value =
0.00)
You assign how the loop Process
Variable (PV) is to be scaled. You can
choose from the following options:
• Unipolar (default: 0 to 27648; can
edit)
• Bipolar (default: -27648 to 27648;
can edit)
• Unipolar 20% offset (range: 5530
to 27648; set and unchangeable)
• Temperature x 10 °C
• Temperature x 10 °F
In the Scaling parameter, you assign
how the loop setpoint (SP) is to be
scaled. Default is a real number be-
tween 0.0 and 100.0.

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.