ICP DAS USA GW-7552-B User Manual page 48

Figure 45 Send Modbus command (output data: FF, FF)
Figure 46 Receive "0xFF" in the input data area
Table 15 Receive "0xFF" in the input data area
Module
Input module
GW-7552-B / GW-7552-M PROFIBUS/MODBUS GATEWAY User Manual (Version 1.60, May/2017) PAGE: 48
Byte Data type Representation
Input 0 Byte
Input 1 Byte
Value
Hex 0xFF
Hex 0xFF