Siemens Simatic S7 Series System Manual

Program instructions
7.9 PID
S7-200 SMART
System Manual, 09/2015, A5E03822230-AC
271
Screen
Description
You enter the loop output options:
• How the loop output is to be
scaled:
– Analog
– Digital
• Analog scaling parameter:
– Unipolar (default: 0 to 27648;
can edit)
– Bipolar (default: -27648 to
24678; can edit)
– Unipolar 20% offset (range:
5530 to 27648; is set and un-
changeable
• Analog range parameter: Assign
the loop output range. The possible
range is -27648 to +27648, de-
pending on your scaling selection.
You can assign what conditions to
recognize with alarm inputs. Use the
checkboxes to enable the alarms as
required:
• Low Alarm (PV): Set normalized
low alarm limit from 0.0 to high
alarm limit; default is 0.10.
• High Alarm (PV): Set normalized
high alarm limit from low alarm limit
to 1.00; default is 0.90.
• Analog Input Error: Assign where
the input module is attached to the
PLC.

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.