ECAN 7148
ECAN 7148
The ECAN 7148 is a field bus data acquisition device supporting up to 16 digital inputs. It uses the CANopen protocol for data transmission and features 2000 Vac galvanic isolation to prevent ground loop effects, making it suitable for industrial environments. The device is housed in a self-extinguishing plastic enclosure, compliant with EN 50022 for DIN rail mounting.
The device supports the CANopen protocol, allowing direct interfacing with CAN controllers compliant with CiA DS 301 and CiA DS 401 standards.
Users should refer to the installation instructions before installation. Proper connection of the power supply, data line, and input signals is crucial. LED indicators assist in verifying device operation, and terminals can be hot-swapped for maintenance.
The device operates optimally at 25°C under nominal conditions. It should be mounted vertically on a DIN rail, with a 5mm gap between devices if the temperature exceeds 45°C or the supply voltage is above 27Vdc. Shielded cables are recommended for signal connections.
Ensure proper ventilation and avoid placing the device near heat-generating appliances. Shielded cables should be used, with the shield connected to an earth wire.
Details on CAN network wiring, power supply wiring, and digital input wiring are provided to ensure correct installation.
The device's baud rate and node ID can be programmed via DIP-switches, with configuration tables available for reference.
LED indicators provide status information: a green LED indicates operational modes, while a red LED signals errors or input states.
The device supports EDS files and complies with CiA DS 301 and CiA DS 401 standards, with four transmit PDOs supported.
The OD groups objects influencing device behavior, including application, communication, and state objects. It follows the CiA301 standard.
PDOs facilitate real-time data transfer, with communication and mapping parameters defining their operation. The COB-ID, transmission type, inhibit time, and event timer are key components.
Digital inputs are processed and transmitted based on mapping parameters. Changes in input states trigger TPDO transmission, with counters incremented for logic state changes.
The device can be set to start in either Operational or Pre-Operational state by configuring specific objects and saving parameters.
This document provides a detailed description of the object dictionary for a device, including various parameters and their configurations. The object dictionary is organized by index numbers, sub-indexes, names, descriptions, object types, default values, and access types.
- Device Type (0x1000): Identifies the device type and profile, with a default value of 0x00010191.
- Error Register (0x1001): Monitors internal errors, default value 0x00.
- Manufacturer's Status Register (0x1002): Provides status information, default value 0x00000000.
- Manufacturer Device Name (0x1008): "ECAN 7148".
- Hardware Version (0x1009): "1.00".
- Software Version (0x100A): "2.10".
- SYNC COB-ID (0x1005): Defines the COB-ID for synchronism, default 0x00000080.
- Communication Cycle Period (0x1006): SYNC interval in microseconds, default 0x00000000.
- Synchronous Window Length (0x1007): Time window for synchronous PDO transmission, default 0x00000000.
- Predefined Error Field (0x1003): Lists recent errors.
- COB-ID Emergency Object (0x1014): Defines COB-ID for emergency, default Node ID + 0x80.
- Error Behaviour (0x1029): Defines device behavior in case of errors.
- Consumer Heartbeat Time (0x1016): Heartbeat cycle time in milliseconds.
- Producer Heartbeat Time (0x1017): Heartbeat cycle time in milliseconds.
- Identity (0x1018): Contains vendor ID, product code, revision number, and serial number.
- Server SDO Parameters (0x1200): Describes SDO communication channels.
- TPDO Communication Parameters (0x1800-0x1803): Lists parameters for TPDOs, including COB ID, transmission type, inhibit timer, and event timer.
- TPDO Mapping Parameters (0x1A00-0x1A03): Lists mapped parameters for TPDOs.
- NMT Startup (0x1F80): Defines the device's operational state at startup.
- CAN Node ID (0x2101): Default CAN node number, programmable via dip switch.
- CAN Bit Rate (0x2102): Default bit rate value, with options ranging from 10 Kbps to 1 Mbps.
- Input Counter Value (0x2111): Contains values for 8 input counters.
- Read Digital Input (0x6000): Measures digital input channels.
- Polarity Input (0x6002): Settings for input bit polarity.
- Global Interrupt Enable (0x6005): Enables/disables global interrupt behavior.
- Interrupt Masks (0x6006-0x6008): Defines interrupt activation for positive/negative edge detection.
Catalog excerpts
Elco Elettronica Snc, Via della Costituzione, 50 42015 – Correggio (RE) Tel: +39 0522 691024 / +39 0522 631753 Fax: +39 0522 691322 Website: www.elcoelettronica.it • Field Bus data acquisition • CAN open protocol • Baud rate and ID Node programmable by dip-switch • 16 digital inputs • Led of signalling for inputs status • Four ways 2000 Vac galvanic isolation • EMC compliance – CE Mark • In compliance with EN-50022
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Elco Elettronica Snc, Via della Costituzione, 50 42015 – Correggio (RE) Tel: +39 0522 691024 / +39 0522 631753 Fax: +39 0522 691322 Website: www.elcoelettronica.it
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Elco Elettronica Snc, Via della Costituzione, 50 42015 – Correggio (RE) Tel: +39 0522 691024 / +39 0522 631753 Fax: +39 0522 691322 Website: www.elcoelettronica.it 1.0 General description The device ECAN 7148 is able to acquire up to 16 digital inputs. The data are transmitted by the CANopen protocol. The 2000 Vac galvanic isolation between inputs, power supply and data line eliminates the effects of all ground loops eventually existing and allows the use of the device in heavy environmental conditions found in industrial applications. The ECAN 7148 is housed in a rough self-extinguishing plastic...
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Elco Elettronica Snc, Via della Costituzione, 50 42015 – Correggio (RE) Tel: +39 0522 691024 / +39 0522 631753 Fax: +39 0522 691322 Website: www.elcoelettronica.it 2.0 Technical specifications Typical @ 25 °C and under nominal conditions
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Elco Elettronica Snc, Via della Costituzione, 50 42015 – Correggio (RE) Tel: +39 0522 691024 / +39 0522 631753 Fax: +39 0522 691322 Website: www.elcoelettronica.it 2.1 Installation instructions The device ECAN 7148 is suitable to be mounted on DIN rail, in vertical position. For a correct working and a long life of the device, read the following indications. In case of the devices are mounted side by side, please leave about 5mm between in the following situations: • Temperature in the cabinet higher than 45 °C and high supply voltage ( >27Vdc ). Avoid to place raceways or other objects which...
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Elco Elettronica Snc, Via della Costituzione, 50 42015 – Correggio (RE) Tel: +39 0522 691024 / +39 0522 631753 Fax: +39 0522 691322 Website: www.elcoelettronica.it 2.3 Wiring 2.3.1 CAN network wiring and power supply wiring 2.3.2 Digital Input wiring
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Elco Elettronica Snc, Via della Costituzione, 50 42015 – Correggio (RE) Tel: +39 0522 691024 / +39 0522 631753 Fax: +39 0522 691322 Website: www.elcoelettronica.it 2.4 DIP – SWITCH 2.4.1 DIP-SWITCH position 2.4.2 DIP-SWITCH configuration tables
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Elco Elettronica Snc, Via della Costituzione, 50 42015 – Correggio (RE) Tel: +39 0522 691024 / +39 0522 631753 Fax: +39 0522 691322 Website: www.elcoelettronica.it Device in Operational mode Device in Pre-Operational mode SLOW BLINKING Device stopped Invalid configuration State 0 Digital Inputs
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Elco Elettronica Snc, Via della Costituzione, 50 42015 – Correggio (RE) Tel: +39 0522 691024 / +39 0522 631753 Fax: +39 0522 691322 Website: www.elcoelettronica.it Application layer: Device profile:
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Elco Elettronica Snc, Via della Costituzione, 50 42015 – Correggio (RE) Tel: +39 0522 691024 / +39 0522 631753 Fax: +39 0522 691322 Website: www.elcoelettronica.it 5.0 The object dictionary (OD) The Object Dictionary is the part of the device profile wherein are grouped the objects that have an influence on the device behaviour (application objects, communication objects and state objects) .The structure of the Object Dictionary is predefined as in Draft Standard CiA301. How to read the Object Dictionary table present in this document. Object type Default value Index: 16 bit number expressed...
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Elco Elettronica Snc, Via della Costituzione, 50 42015 – Correggio (RE) Tel: +39 0522 691024 / +39 0522 631753 Fax: +39 0522 691322 Website: www.elcoelettronica.it 6.1 COB-ID The COB-ID is the Connection Object Identifier and contains the unique CAN message Identifier of the object and additional configuration bits. For the PDOs the following 32 bit COB-ID are foreseen. TPDO1: NODO ID + 0x00000180; TPDO2: NODO ID + 0x00000280; TPDO3: NODO ID + 0x00000380; TPDO4: NODO ID + 0x00000480; RPDO1: NODO ID + 0x00000200; RPDO2: NODO ID + 0x00000300; RPDO3: NODO ID + 0x00000400; RPDO4: NODO ID + 0x00000500....
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Elco Elettronica Snc, Via della Costituzione, 50 42015 – Correggio (RE) Tel: +39 0522 691024 / +39 0522 631753 Fax: +39 0522 691322 Website: www.elcoelettronica.it 6.3 Inhibit time This is the time within the PDO is not transmitted. The PDO is transmitted only when the time expires. 6.4 Event Timer The PDO is transmitted on a fixed time base.
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Elco Elettronica Snc, Via della Costituzione, 50 42015 – Correggio (RE) Tel: +39 0522 691024 / +39 0522 631753 Fax: +39 0522 691322 Website: www.elcoelettronica.it 7.0 Functional diagram for digital inputs transmission 7.1 Interrupt triggering TPDO transmission The digital inputs are processed and transferred to the object 6000h. The data of this object are moved to the 1st TPDO in function of the mapping parameters set in the objects 1A00h. The communication parameters of TPDO are defined in the objects 1800h. The system executes the boolean operation OR between the values of the masks contained...
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Elco Elettronica Snc, Via della Costituzione, 50 42015 – Correggio (RE) Tel: +39 0522 691024 / +39 0522 631753 Fax: +39 0522 691322 Website: www.elcoelettronica.it 8.0 Set the operative state at the device’s startup Follow the next procedure to set-up the device's operative state at the startup (Operational or PreOpertional). 8.1 “Operational” state setting 1. Write the decimal value 0 (0x00) in the object 1F80h (NMT startup). 2. Execute the command “Save all parameters” as described in the object 1010h. 3. Execute the command “Restore all parameters” as described in the object 1011h. 4. Power-off...
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Elco Elettronica Snc, Via della Costituzione, 50 42015 – Correggio (RE) Tel: +39 0522 691024 / +39 0522 631753 Fax: +39 0522 691322 Website: www.elcoelettronica.it 9.0 Object dictionary (OD) Index Object type Default value Device Type Identifies the type of device (analog input) and its Device Profile (CiA 401) Error register Register used to monitor eventual internal errors Manufacturers status register Status register Predefined error field Standard error field 1 SYNC COB-ID Defines the COB-ID of the Synchronism Object consumed Communication cycle period Defines the SYNC interval and it is...
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