BSCM Modbus SL/ULP Module Configuration

The following parameters can be configured in the BSCM Modbus SL/ULP module:

Modbus address and Modbus parameters (in Modbus SL only mode or Modbus SL and ULP mode)
Maintenance indicators
Communicating motor mechanism parameters (if present)

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:

Modbus address rotary switch position 0 allows you to set the BSCM Modbus address from 1 to 99 by using EcoStruxure Power Commission software.
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.

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 PKR1891407 ComPacT NSX DC – BSCM Modbus SL/ULP Instruction Sheet.

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
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 EPC software
Remote padlock	Enabled Disabled	Disabled	–	✔
Address	1–99	99	✔ ⁽¹⁾	✔
Baud rate	4800 9600 19200 38400	19200	–	✔
Parity	None Odd Even	Even	–	✔
Stop bit	1 2	1	–	✔
Modbus SL Auto Go Activation	Enabled Disabled	Enabled	–	✔
(1) The Modbus address can be set from 1 to 13 only.

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 Maintenance Indicators

The maintenance indicators of the BSCM Modbus SL/ULP module can be configured by using:

The EcoStruxure Power Commission software
The communication network

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.

Configuring the BSCM Modbus SL/ULP Module With EPC Software

To configure the BSCM Modbus SL/ULP module, use a PC running EcoStruxure Power Commission (EPC) software:

In Modbus SL only mode or in Modbus SL and ULP mode, connect the PC to an RJ45 port of the Modbus SL hub.
In ULP only mode, connect the PC to the Service Interface or USB maintenance module connected to the RJ45 connector of a ULP module connected to the BSCM Modbus SL/ULP module (for example, IFM Modbus SL communication interface).

Cybersecurity Recommendations

WARNING
potential compromise of system availability, integrity, and confidentiality Change default PIN codes and passwords at first use to help prevent unauthorized access to device settings, controls, and information. Disable unused ports/services and default accounts to help minimize pathways for malicious attackers. Place networked devices behind multiple layers of cyber defenses (such as firewalls, network segmentation, and network intrusion detection and protection). Use cybersecurity best practices (for example, least privilege, separation of duties) to help prevent unauthorized exposure, loss, modification of data and logs, or interruption of services. Failure to follow these instructions can result in death, serious injury, or equipment damage.

WARNING

potential compromise of system availability, integrity, and confidentiality

Change default PIN codes and passwords at first use to help prevent unauthorized access to device settings, controls, and information.
Disable unused ports/services and default accounts to help minimize pathways for malicious attackers.
Place networked devices behind multiple layers of cyber defenses (such as firewalls, network segmentation, and network intrusion detection and protection).
Use cybersecurity best practices (for example, least privilege, separation of duties) to help prevent unauthorized exposure, loss, modification of data and logs, or interruption of services.

Failure to follow these instructions can result in death, serious injury, or equipment damage.

For more information, refer to DOCA0122•• MasterPacT, ComPacT, PowerPacT - Cybersecurity Guide.