iSMA-B-W0202 Modbus User Manual
version 1.2
Page 24 / 49
Special input configuration 1 – 2 (40151 – 40152)
These registers are dedicated for the Special Inputs configuration in accordance with the
following table:
Register value
Description
0
Off resistance measurement (only measuring the voltage, dry contact off)
1 (default)
The temperature sensor 10K3A1 NTC B=3975K
2
The temperature sensor 10K4A1 NTC B=3695K
3
The temperature sensor 10K NTC B=3435K Carel
4
The temperature sensor 20K6A1 NTC B=4262K
5
The temperature sensor 2,2K3A1 NTC B=3975K
6
The temperature sensor 3K3A1 NTC B=3975K
7
The temperature sensor 30K6A1 NTC B=4262K
8
The temperature sensor SIE1
9
The temperature sensor TAC1
10
The temperature sensor SAT1
+128
(set 7. bit of register)
Off voltage measurement and
fast counters working on 100Hz
Table 23 Special Input Configuration register
Filter time of the Special Input 1 – 2 (40159 – 40160)
The registers contain a time constant of low pass filter value. The value is expressed in seconds.
Valid values are between 1 and 60 seconds.
The default filter value is 2 seconds. Setting 0 disables the filter.