Configuration

To configure the BSCM Modbus SL/ULP module, use a PC running EcoStruxure Power Commission (EPC) software and connected to the Service Interface, to an IFE communication interface or to a Panel Server.

With EPC software, you can configure:

The Modbus parameters of the BSCM Modbus SL/ULP module.
The maximum number of times the circuit breaker can open and close.
The maximum number of times the communicating motor mechanism can close.
The reset mode of the communicating motor mechanism.
The firmware update.
The Modbus address.

Configuring the BSCM Modbus Address

In Modbus SL only mode and in Modbus SL and ULP mode, configure the BSCM Modbus address by using the Modbus address rotary switch on the front face of the BSCM Modbus SL/ULP module:

By default, the Modbus address rotary switch is set on position 0. Modbus address rotary switch position 0 corresponds to BSCM Modbus address 99 by default. Modbus address rotary switch position 0 allows you to set the BSCM Modbus address from 1 to 99 by using:
- EcoStruxure Power Commission software
- The MicroLogic 5 or 6 display.
Modbus address rotary switch positions 1 to D correspond to BSCM Modbus addresses 1 to 13. If the BSCM Modbus address is set from 1 to 13 by using the Modbus address rotary switch, the BSCM Modbus address cannot be set by using EcoStruxure Power Commission software or the MicroLogic 5 or 6 display.

NOTE: Modbus address rotary switch positions E and F are not operational and reserved for future use.

For more information about configuration of the BSCM Modbus address, consult:

Configuring the BSCM Modbus Parameters

The Modbus parameters of the BSCM Modbus SL/ULP module can be configured by using the following interfaces:

the Modbus address rotary switch on the BSCM Modbus SL/ULP module
the MicroLogic 5 or 6 display
EcoStruxure Power Commission (EPC) software

The following table indicates which interface can be used to set each parameter:

Parameters	Value	Factory setting	Set on the BSCM Modbus SL/ULP module	Set on the MicroLogic 5 or 6 trip unit	Set on EPC software
Remote padlock	Enabled Disabled	Disabled	–	–	✔
Address	1–99	99	✔ ⁽¹⁾	✔	✔
Baud rate	4800 9600 19200 38400 Auto ⁽²⁾	19200	–	✔	✔
Parity	None Odd Even	Even	–	✔	✔
Stop bit	1 2	1	–	–	✔
Modbus SL Auto Go Activation	Enabled Disabled	Enabled	–	✔ ⁽²⁾	✔
(1) The Modbus address can be set from 1 to 13 only. (2) To activate the Modbus SL Auto Go function by using the MicroLogic 5 or 6 trip unit, set the Baud rate to Auto.

NOTE: In ULP only mode, the setting of the BSCM Modbus parameters is not required.

Remote Padlock

The user can enable or disable remote control commands to be sent over the Modbus network to the BSCM Modbus SL/ULP module itself, and to the other modules of the IMU. There is no physical padlock button. Use the remote padlock parameter available in EcoStruxure Power Commission software.

For more information, refer to EcoStruxure Power Commission Online Help.

Modbus SL Auto Go Function

If the Modbus SL Auto Go function is enabled, the BSCM Modbus SL/ULP module automatically detects the communication network speed and parity. The Auto-Speed sensing algorithm tests the available Baud rates and parities and automatically detects the Modbus Serial Line communication network parameters. The Modbus client must send at least 36 frames on the Modbus Serial Line communication network in order to allow the Auto-Speed sensing algorithm to work.

The transmission format is binary with one start bit, eight data bits, and one stop bit in case of even or odd parity, or two stop bits in case of no parity.

If the Auto-Speed sensing algorithm does not detect the network parameters, it is recommended to follow this procedure:

Step	Action
1	Send a Read Multiple Register request (function code 0x03) to the server, using the server ID of the BSCM Modbus SL/ULP module, at any address and for any number of registers.
2	Send this request at least 36 times.

NOTE: If the network speed or parity is changed after the BSCM Modbus SL/ULP module has automatically detected these settings, the BSCM Modbus SL/ULP module must be restarted (power off/power on) in order to detect the new network parameters.

Configuring the Communicating Motor Mechanism

CAUTION
HAZARD OF REPEATED CLOSING ON ELECTRICAL FAULT Reconfiguring of the BSCM Modbus SL/ULP module must be done only by qualified electrical personnel. Failure to follow these instructions can result in injury or equipment damage.

By default, the communicating motor mechanism can be reset only locally and automatic reset is disabled. To authorize remote reset, the reset mode of the communicating motor mechanism can be configured by using:

The EcoStruxure Power Commission software
The communication network

One of the following remote reset modes can be selected:

Enable Reset even if SDE to authorize resetting of the mechanism using the communication network even after an electrical fault trip.
Enable Automatic Reset to authorize automatic resetting after tripping by the MN, MX trip release, or push-to-trip button.
Enable Reset even if SDE and Enable Automatic Reset to authorize automatic resetting even after an electrical fault trip.