Siemens SIMATIC S7-1500 Automation System User Manual

Test functions and fault resolution
10.1 Test functions
S7-1500 Automation System
130 System Manual, 01/2013, A5E03461182-01
Testing with watch tables
The following functions are available in the watch table:
● Monitoring of tags
This allows the current values of the individual tags of a user program or a CPU to be
monitored on the programming device or PC.
The following operand areas are possible:
– Inputs and outputs (process image) and bit memory
– Contents of data blocks
– Peripheral inputs and peripheral outputs
– Timers and counters
● Modifying tags
You can use this function to assign fixed values to the individual tags of a user program
or CPU. Modifying is also possible with Test with program status .
The following operand areas are modifiable:
– Inputs and outputs (process image) and bit memory
– Contents of data blocks
– Peripheral inputs and peripheral outputs (for example, %I0.0:P, %Q0.0:P)
– Timers and counters
● "Enable peripheral outputs" and "Modify now"
These two functions enable you to assign fixed values to individual peripheral outputs of
a CPU in the STOP mode. You can also use them to check your wiring.

Siemens SIMATIC S7-1500 Automation System Specifications

General

Series	SIMATIC S7-1500
Programming	TIA Portal (Totally Integrated Automation Portal)
Protection Class	IP20
CPU	Various models available (e.g., CPU 1511-1 PN, CPU 1518-4 PN/DP)
Controller Type	Modular Controller
Programming Languages	LAD, FBD, STL, SCL, GRAPH
Communication Interfaces	PROFINET, PROFIBUS, Ethernet, OPC UA
Digital Inputs	Varies by model and expansion modules
Digital Outputs	Varies by model and expansion modules
Analog Inputs	Varies by model and expansion modules
Analog Outputs	Varies by model and expansion modules
Backplane Bus	High-speed backplane bus for fast communication between modules
Redundancy	Supported with specific models and configurations
Safety	Integrated safety functions available
Scalability	Highly scalable with modular expansion
Operating Temperature	0°C to 60°C