Figure 2-20 Exception Status Bits - Siemens SIMATIC TI505 User Manual

Modbus Function Descriptions (continued)
2-18 Modbus Commands
The response shows that 3B (hex) has been returned. If the individual bits
are examined, they indicate the status of each bit.
0 0

Figure 2-20 Exception Status Bits

Coils
3B (hex)
1 1 1 0 1 1
SIMATIC TI505/TI500 MODNIM User Manual
Coil 1 (ON)
Coil 2 (ON)
Coil 3 (OFF)
Coil 4 (ON
Coil 5 (ON)
Coil 6 (ON)
Coil 7 (OFF)
Coil 8 (OFF)