HIMA HIQuad X - Temperature Monitoring; Table 14: Thresholds of the Temperature States

System Product Description
HI 803 211 E Rev. 1.01.00 Page 37 of 110
4.2.4 Temperature Monitoring
The HIQuad X system is intended for operation up to a maximum ambient temperature of 60 °C.
Sensors located at specific temperature-relevant positions on the modules record the
temperature state of processor modules, I/O processing modules and communication modules.
The temperature state of these modules is centrally monitored and evaluated by the processor
modules (F-CPU 01).
System parameters Temperature State [1] and Temperature State [2] in the user program can
be used to evaluate the temperature state, see Chapter 6.1.3.
The system parameters Temperature State [1] and Temperature State [2] signal the measured
temperatures as follows:
Temperature
threshold
Temperature state
Temperature State [X] [BYTE]
≤ 40 °C
Normal
0x00
> 40 °C
Warning: Threshold 1 exceeded.
0x01
> 60 °C
Error: Threshold 2 exceeded.
0x03
Table 14: Thresholds of the Temperature States
If a value exceeds or falls below one of the temperature thresholds, the temperature state
changes.
The transition to the state Threshold 1 exceeded or Threshold 2 exceeded does not indicate an
impairment of the system safety.
The user must implement suitable measures to ensure that the ambient temperature limits
specified for the system are met.
i
The temperature can be used in the user program, e.g., as additional shutdown condition;
however, the temperature is not recorded in a safety-related manner.
Temperature State may be used as an additional shutdown condition.
In the SILworX Hardware Editor, the Temperature State system parameter can be used to
define if exceeding the temperature threshold should cause a message to be issued.