Figure 2-9 Read Input Status Example - Data Field - Siemens SIMATIC TI505 User Manual

SIMATIC TI505/TI500 MODNIM User Manual
The response returns in the data field a single byte (1A) containing the 1's
or 0's for the 5 discrete inputs, packed out with zeros for the three high bits.
1A = 0 0 0 1 1 0 1 0
Figure 2-9 Read Input Status Example — Data Field
Input 0A (OFF)
Input 0B (ON)
Input 0C (OFF)
Input 0D (ON)
Input 0E (ON)
Packed with zeros (000)
Modbus Commands 2-11