Data Object Properties
- MODBUS RTU packets are only intended to send data; they do not have the capability to send parameters
- If the ability to send such parameters is needed, one should investigate a BACnet, EtherNet/IP, or other modern protocol
| Name | Type | Access | Visual |
| Discrete Input | single bit | read-only |  |
| Discrete Output (Coils) | single bit | read-write |  |
| Input Registers | 16-bit word | read-only |  |
| Holding Registers (Registers) | 16-bit word | read-write |  |