Key Features of BMECXM Modules

Original instructions

Communication Profile

The module manages the communication with:

The CANopen slaves according to the CiA 301 V4.2 standard
The M580 CPU over Ethernet I/O

NOTE: The minimum firmware version for the M580 CPU is V2.20.

NOTE: Communication with Ethernet I/O scanner modules is not possible.

Two communication profiles can be used:

Remote (RIO scanner) linked to AUX, MAST, or FAST tasks.
Distributed (DIO scanner)

These profiles offer a total flexibility depending on the level of performance required by the process.

System Architecture

The BMECXM module can be plugged in any:

M580 local rack
Remote drop supporting the M580 Ethernet backplane with a drop end communicator BMECRA31210 module.

NOTE: The minimum firmware version for the BMECRA31210 is V2.10.

You can use several CANopen X80 master modules on the M580:

Services

Operating modes are based on the / technology and are fully integrated in Control Expert.

The BMECXM module can provide these services:

Configuration
CANopen	The BMECXM module is natively included in Control Expert Hardware Catalog. Use Control Expert to select and configure the BMECXM module. NOTE: You can configure third-party CANopen slaves by using the Control Expert Hardware Catalog Manager via EDS files. You cannot configure a CANopen slave using its own DTM.
Ethernet Services	Use Control Expert DTM to configure the BMECXM module.
Communication
Language objects	Use Control Expert application to access CANopen slaves via device DDTs that are automatically created for each device (implicit exchanges through PDOs).
Programming	Use Control Expert application to access CANopen slaves via SDO function blocks (explicit exchanges) and device DDT (implicit exchanges).
Diagnostics
LED Indicators	Use LED indicators to check the status of the BMECXM module and its communications with the network.
Device DDT	Use the device DDT to diagnose the BMECXM module from the application.
SNMP	Use SNMP services to gain easy access from an SNMP network to: Diagnostic information for the BMECXM module Event notification for some services Configure this service with the BMECXM DTM.
DTM	Use Control Expert DTM to view communication and status information of: the BMECXM module, the CPU, and the CANopen slaves.
Embedded Webpages	Use the web browser of your PC to access detailed diagnostics data of the BMECXM module.
Firmware upgrade
Firmware upgrade	Use the Automation Device Maintenance or Unity Loader tool to upgrade the firmware of the BMECXM module.

Cyber Security

The CANopen X80 master module is in line with the global policy of the Modicon M580 range in term of cyber security.

Access rights between Control Expert and the BMECXM DTM are synchronized.

Webserver is in read-only.

In addition, you can restrict the BMECXM access to:

FTP, HTTP, SNMP, NTP, and EIP services
Authorized IP addresses

For more information, refer to Modicon Controllers Platform, Cyber Security, Reference Manual.

Module Limits

When you use a BMECXM module on the Modicon M580, observe these limits:

Each BMECXM module can manage a maximum of 63 CANopen slaves.
The size of the configuration file (.prm) of each BMECXM module is limited to 64 Kb maximum.
Each BMECXM module on the Ethernet bus communicates with the CPU. They are in the same network. Transparency is thus provided from the CPU or any PC connected on the same subnet up to the BMECXM module.

NOTE: No communication is possible between two BMECXM modules.

Module Restrictions

These services are not supported:

Multi-master on CANopen bus
Complex manufacturer-specific data types
Scanning from a BMENOC03•1
Access to CAN layer 2
Copy/paste a BMECXM

NOTE: The motion function blocs (MFB) are only supported when the BMECXM module is scanned by the RIO scanner.

NOTE: The motion function blocs (MFB) are not supported when the BMECXM module is configured on AUX tasks.

(CAN in Automation) International organization of users and manufacturers of CAN devices.

(central processing unit) Brain of an industrial manufacturing process, also known as the processor or controller. It automates a process as opposed to relay control systems. CPUs are computers suited to survive the harsh conditions of the industrial environment.

An Ethernet-based network that contains three types of RIO de vices: a local rack, an RIO drop, and a ConneXium extended dual-ring switch (DRS). Distributed equipment may also participate in a RIO network via connection to DRSs.

A group of sections and subroutines, executed cyclically or periodically for the MAST task and periodically for the FAST task. A task possesses a level of priority and is linked to inputs and outputs of the controller. These I/O are refreshed in relation to the task. A controller can have several tasks.

A network containing distributed equipment, in which I/O scanning is performed by a CPU with DIO scanner service on the local rack. DIO network traffic is delivered after RIO traffic, which takes priority in an RIO network.

An M580 rack containing the CPU and a power supply. A local rack consists of one or two racks: the main rack and the extended rack, which belongs to the same family as the main rack. The extended rack is optional.

(Field device tool) The technology that harmonizes communication between field devices and the system host.

(Device type manager) Device driver running on the host PC. It provides a unified structure for accessing device parameters, configuring and operating the devices, and troubleshooting devices. DTMs can range from a simple graphical user interface (GUI) for setting device parameters to a highly sophisticated application capable of performing complex real-time calculations for diagnosis and maintenance purposes. In the context of a DTM, a device can be a communications module or a remote device on the network.

(electronic data sheet) Simple text file that describes the configuration capabilities of a device. EDS files are generated and maintained by the manufacturer of the device.

(Device derived data type) Predefined by the manufacturer and not editable. It contains the I/O language elements of an I/O module.

(process data object) An unconfirmed broadcast message sent from a producer device to a consumer device in a CAN-based network. The transmit PDO from the producer device has a specific identifier that corresponds to the receive PDO of the consumer devices.

(service data object) A message used by the fieldbus master to access (read/write) the object directories of network nodes in CAN-based networks. SDO types include service SDOs (SSDOs) and client SDOs (CSDOs).

(simple network management protocol) Protocol used in network management systems to monitor network-attached devices. The protocol is part of the Internet protocol suite (IP) as defined by the Internet engineering task force (IETF). It consists of network management guidelines, including an application layer protocol, a database schema, and a set of data objects.

(file transfer protocol) A protocol that copies a file from one host to another over a TCP/IP-based network, such as the Internet. FTP uses a client/server architecture as well as separate control and data connections between the client and server.

(hypertext transfer protocol) A networking protocol for distributed and collaborative information systems. HTTP is the basis of data communication for the Web.

(Network time protocol) Protocol for synchronizing computer system clocks. The protocol uses a jitter buffer to resist the effects of variable latency.

A network communication protocol for industrial automation applications. It combines the standard Internet transmission protocols of TCP/IP and UDP with the application layer common industrial protocol (CIP) to support both high-speed data exchange and industrial control. EtherNet/IP employs electronic data sheets (EDS) to classify each network device and its functionality.

The 32-bit identifier, consisting of both a network address and a host address assigned to a device connected to a TCP/IP network.

(Controller area network) Fieldbus originally developed for automobile applications and now used in many sectors.