Spectrum M2p.59 Series, Hardware Manual, Page: 183 / 190

Temperature sensors
(c) Spectrum Instrumentation GmbH 183
Temperature sensors
The M2p card series has integrated temperature sensors that allow to read out different internal temperatures. Theses functions are also avail -
able for the M2p cards mounted inside of the digitizerNETBOX, generatorNETBOX or hybridNETBOX series. In here the temperature can be
read out for every internal card separately.
The Spectrum driver (starting with version 5.09) checks for over temperature at every opening of the driver
and also uses a background temperature watchdog to ensure that the card’s operating temperature stays
within the recommended operating range and an ERR_TEMPERATURE error will be issued if exceeded.
In case of a detected temperature error, please carefully check the cooling requirements of the card as ex -
plained in the „Cooling Precautions“ chapter earlier in the manual.
Temperature read-out registers
Up to three different temperature sensors can be read-out for each M2p card. The temperature can be read in different temperature scales
at any time:
Temperature hints
• Manual monitoring of the temperature figures might be used for application specific limits or for logging purposes.
• The temperature sensors can be used to optimize the system cooling.
59xx temperatures and limits
The following description shows the meaning of each temperature figure on the M2p.59xx series and also gives maximum ratings that should
not be exceeded. All figures given in degrees Celsius:
Table 104: Spectrum API: temperature sensor registers
Register Value Direction Description
SPC_MON_TK_BASE_CTRL 500022 read Base card temperature in Kelvin
SPC_MON_TK_MODA_0 500023 read Temperature in Kelvin of front-end module A.
SPC_MON_TK_MODB_0 500024 read Temperature in Kelvin of front-end module B.
SPC_MON_TC_BASE_CTRL 500025 read Base card temperature in degrees Celsius
SPC_MON_TC_MODA_0 500026 read Temperature in degrees Celsius of front-end module A.
SPC_MON_TC_MODB_0 500027 read Temperature in degrees Celsius of front-end module B.
SPC_MON_TF_BASE_CTRL 500028 read Base card temperature in degrees Fahrenheit
SPC_MON_TF_MODA_0 500029 read Temperature in degrees Fahrenheit of front-end module A.
SPC_MON_TF_MODB_0 500030 read Temperature in degrees Fahrenheit of front-end module B.
Table 105: 59xx card typical temperatures and limits
Sensor Name Sensor Location Typical figure at 25°C
environment temperature
Maximum temperature
BASE_CTRL Inside FPGA 50°C ±5°C 80°C
MODULE_0 Amplfier Front-End of Module A 40°C ±5°C 80°C
MODULE_1 Amplfier Front-End of Module B
(if installed)
40°C ±5°C 80°C