ModbusPal currently doesn’t support all MODBUS functionalities.
The following tables track the current status of MODBUS support in
ModbusPal.
Functions | Supported |
0x01 Read coils | YES |
0x02 Read discrete inputs | no |
0x03 Read holding registers | YES |
0x04 Read input registers | no |
0x05 Write single coil | YES |
0x06 Write single register | YES |
0x07 Read exception status | no |
0x08 Diagnostics | no |
0x0B Get comm. Event counter | no |
0x0C Get comm. Event log | no |
0x0F Write multiple coils | YES |
0x10 Write multiple registers | YES |
0x11 Report slave ID | no |
0x14 Read file record | no |
0x15 Write file record | no |
0x16 Mask write register | no |
0x17 Read/write multiple registers | YES |
0x18 Read FIFO queue | no |
0x2B Encapsulated interface transport | no |
User-defined functions | YES (require scripts) |