iSMA-B-W0202 User Manual
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DMP263en | 1st Issue rev. 3 | 05/2022
page 26 of 41
7.3.3 Special Input Temperature Measurement 1-2 (30072, 30074)
The registers contain results of measuring temperature for each special input. The result
is expressed in Celsius degrees multiplied by 10.
Special Input
Register Number
S1
30072
S2
30074
Table 19. Speicla inputs temperature measurement
7.3.4 Special Input Resistance Measurement 1-2 (30103-30104,
30105-30106)
The 32-bit registers contain results of measuring temperature for each special input. The
result is expressed in
Ω
(Ohms). The register with lower number contains lower part of
the result.
Special Input
Register Number
S1
LO - 30103, HI - 30104
S2
LO - 30105, HI - 30106
Table 20. Special inputs resistance measurement
7.3.5 Fast Counter (40023-40024, 40025-40026)
The module has two 32-bit counters for special inputs. The
counter’s
value is stored in
non-volatile memory (EEPROM).
Special Input
Register Number
S1
LO - 40023, HI - 40024
S2
LO - 40025, HI - 40026
Table 21. Fast counter registers for special inputs
To change the value of the register, write any value (called preset) for pulse counting
registers. In the particular case, the counter can be reset by entering 0. The
counter’s
reset is also possible by switching on relevant bits in the 40022 register.
7.3.6 Resetting Counters Values (40022)
Setting true value for particular bit resets the corresponding counter according to the
following table:
WARNING!
By default, fast counters work with 50 Hz frequency. To change the frequency to 100
Hz, please refer to registers (40151-40152).
