add_modbus_signal_multi(ip, port, slaveid=255, name=None, reg_type=DR_HOLDING_REGISTER, start_address=0, cnt=1)
Features
This function registers the ModbusTCP FC15 & FC16 multiple signal. The Modbus I/O must be set in the Teach Pendant I/O set-up menu. Use this command only for testing if it is difficult to use the Teach Pendant. The Modbus menu is disabled in the Teach Pendant if it is set using this command.
Note
Initial value setting function is not supported.
Parameters
| Parameter Name | Data Type | Default Value | Description |
|---|---|---|---|
ip | string | - | IP address of the ModbusTCP module |
port | int | - | Port number of the ModbusTCP module |
slaveid | int | 255 |
0 : Broadcase address 255 : Default value for ModbusTCP |
name | string | None | Modbus signal name |
reg_type | int | DR_HOLDING_REGISTER | Modbus signal type
|
start_addreess | int | 0 | Start address of Modbus multiple signal |
cnt | int | 1 | Count of Modbus multiple signal |
Return
| Value | Description |
|---|---|
0 | Success |
Negative value | Failed |
Exception
| Exception | Description |
|---|---|
DR_Error (DR_ERROR_TYPE) | Parameter data type error occurred |
DR_Error (DR_ERROR_VALUE) | Parameter value is invalid |
DR_Error (DR_ERROR_RUNTIME) | C extension module error occurred |
DR_Error (DR_ERROR_STOP) | Program terminated forcefully |
Example
add_modbus_signal_multi(ip="192.168.137.200", port=502, slaveid=255, name="multi", reg_type=DR_HOLDING_REGISTER, start_address=0, cnt=5)