8-Channel Relay Output Moduel : MD-DORL8
This is a 4A load per channel relay output module capable of up to AC 240V.
If a high switching frequency is needed, using the DC Output Modules is recommended.
After prolonged used, the relay's mechanical contacts may become worn and will need to be replaced. (Individual relays are not available, so the entire module will need to be replaced.)
Each module has 8 channels, each with its own unique Modbus address
| Channel | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
|---|---|---|---|---|---|---|---|---|
| Starting Address(base 10) | 3200 | 3201 | 3202 | 3203 | 3204 | 3205 | 3206 | 3207 |
| Starting Address(base 16) | C80 | C81 | C82 | C83 | C84 | C85 | C86 | C87 |
| Address (base 10) used by HMI (SCADA) | 03201 | 03202 | 03203 | 03204 | 03205 | 03206 | 03207 | 03208 |
Module ID (Modbus Slave Address) Assignment
On the front of the module, there is a rotary switch labeled ID, that is used to select the Modbus slave address for the module. When installing multiple modules of the same type, the ID for each module should be unique.
Rotary switch position 0 corresponds to Modbus slave address 10. If the ID is changed after the module is powered on, it must be power cycled for the new ID to take effect.