4. Software Implementation of the Gateway
4.1.2. Configuring the Motor Starters
Each motor starter should be configured as follows:
Protocol: | Modbus RTU slave |
Modbus address | 1 to 8 |
Bitrate | 19,200 bits/s |
Data bits | 8 |
Start bits | 1 |
Parity | None |
Parity bit | 0 |
Stop bits | 1 |
When using a TeSys U motor starter with a Modbus communication module (LULC031 module), the configuration parameters for the RS485 connection are automatically detected, only the Modbus address of the motor starter needs to be configured.
4.1.3. Modbus Cycle Time
The LUFP7 gateway’s default configuration sets a cycle time of 300 ms on Modbus commands for each of the 8 TeSys U motor starters.
4.1.4. Managing Degraded Modes
The default management for degraded modes is described below. This description only applies to a Premium PLC fitted with a TSX PBY 100 coupler. Please refer to chapter 6.11.2.1 Managing degraded modes, page 71, if you want to change the degraded mode management of one or several Modbus commands.
Desired
behaviour
Reset
Output
Hold
Inputs | Reset |
Event
Premium PLC: | Disconnection | Failure of the | Disconnection of | |
of the upstream | the downstream | |||
CPU stop or failure | LUFP7 gateway | |||
Modbus network | ||||
|
| |||
“Outputs” option | Yes |
|
| |
equal to “Reset” (1) | Depending on the configuration of the | |||
| ||||
“Outputs” option | TeSys U motor starters (2) | |||
equal to “Hold” (1) |
|
| ||
|
|
| ||
| Yes |
|
(1)The “Outputs” option is described in chapter 4.2.8 Importing the Configuration of the
(2)The desired behaviour with regard to the outputs should be directly configured on each of the TeSys U motor starters.
You may also refer to chapter 4.2 Degraded application mode of the Implementation manual – TSX PBY 100 –
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