
Modbus Commands
2-9
SIMATIC TI505/TI500 MODNIM User Manual
Response: 07 01 01 1A XXXX
Checksum (XXXX)
Data (1A)
Number of bytes (01)
Function code (01)
Slave address (07)
Figure 2-5 Read
Coil Status Example — Response
The response returns in the data field a single byte (1A) which contains the
1’
s or 0’
s for the 5 coils, packed out with zeros for the three high bits.
1A =
0 0 0 1 1 0 1 0
Coil 0A (OFF)
Coil 0B (ON)
Coil 0C (OFF)
Coil 0D (ON)
Coil 0E (ON)
Packed with zeros (000)
Figure 2-6 Read
Coil Status Example — Data Field
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