iSMA-B-MINI/MIX Modbus User Manual
www.ismacontrolli.com
DMP262en | 1st Issue rev. 8 | 05/2022
page 41 of 107
7.2 Digital Input Registers
7.2.1 State of Digital Inputs (30016)
This 16-bit register contains the status of digital inputs. Short-circuit input to GND sets
the corresponding bit in the register in accordance with the table below:
No. of Bit in the Register
No. of Digital Input
0
1
1
2
…
…
10
11
11
12
Table 17. Status of DI for MIX38 and MIX38-IP
7.2.2 Counter 1-12 (40023, 40024-40045, 40046)
The modules have 32-bit counters, one for each digital input.
The register with a lower number contains a lower byte of the counter and in the register
with a higher number is stored in the higher byte of the
counter.
In order to change the value of the register, write any value (called
‘preset’)
for pulse
counting registers. In special cases, the counter can be reset by entering 0. Resetting the
counter is also possible with the 40022 register.
7.2.3 Resetting the Counters (40022)
Setting a true value of a particular bit of this 16-bit register results in resetting the
corresponding counter (setting it to 0) in accordance with the following table:
No. of Bit in the Register
No. of Digital Input
0
1
1
2
…
…
10
11
11
12
Table 18. Resetting the counters for MIX38 and MIX38-IP
