Special Inputs Registers
Status of Special Inputs Working as Digital Inputs (30017)
The register contains information about the status of special inputs (dry contact). The input’s shortcut to the ground sets the corresponding bit of the register in accordance with the following table:
No. of Input | No. of Register Bit |
|---|---|
1 | 0 |
2 | 1 |
Special Input Voltage Measurement 1-2 (30071, 30073)
The registers contain results of measuring voltage for each special input. The result is expressed in millivolts.
Special Input | Register Number |
|---|---|
S1 | 30071 |
S2 | 30073 |
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 |
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 |
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 |
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.
WARNING!
By default, fast counters work with 50 Hz frequency. To change the frequency to 100 Hz, please refer to registers (40151-40152).
Resetting Counters Values (40022)
Setting true value for particular bit resets the corresponding counter according to the following table:
No. of Register Bit | Special Input Counter |
|---|---|
0 | S1 |
1 | S2 |
True value of the bit causes continuous resetting of the counter.
Setting the bit to 0 restores normal operation.
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 100 Hz |
Filter Time of 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.