Function codes
The following "function codes" are supported:
| Name |
Function code |
Subfunction code |
|
|---|---|---|---|
| Data access (16-bit) | Read Holding Registers | 03 (03h) | |
| Read Input Register | 04 (04h) | ||
| Write Single Register | 06 (06h) | ||
| Write Multiple Registers | 16 (10h) | ||
| Read/Write Multiple Registers | 23 (17h) | ||
| Miscellaneous | Encapsulated Interface Transport | 43 (2Bh) | 13 (0Dh) |
| Read complete object dictionary start | 101 (65h) | 85 (55h) | |
| Read complete object dictionary next | 101 (65h) | 170 (AAh) | |
| Read complete array or record start | 102 (66h) | 85 (55h) | |
| Read complete array or record next | 102 (66h) | 170 (AAh) |