(under construction)

Description

Sometimes a simple relay output remains the best choice. The kickoff for this device was the need for polarity reversal of a current source without influencing the potential of the current source connections. A four-quadrant source seemed a bit too excessive, so a couple of relay contacts were the way to go.

Functionality

• Drive four 2A relay outputs
• CANopen® fieldbus, generic I/O module profile CiA 401
• Manual override via control panel
• Configuration via CANopen, control panel or using PC application via micro-USB port
• Possibility for custom firmware with specific signal processing functions

Network functions (via our gateway)

• Stream logic states via JSON
• View states directly via HTML, no cloud needed
• Logging to micro-SD card
• Node-ID assigned via serial number
• Remote configuration & firmware update

Specifications

• 6× protected & isolated type-3 digital input, continuous up to 60VDC or 42VAC, twice these values under conditions
• OLED display shows status, CAN-bus configuration and SDO editing
• CANopen® device profile for generic I/O modules (CiA 401)
• Supports LSS node-ID assignment and Fastscan (CiA 305)
• Supports automatic bit-rate detection between 10kbps and 1Mbps (CiA 801)
• CAN-FD 'Ready' (no active support for FD datarates yet, but tolerates FD traffic on bus)
• Up-to-date EDS file generated by and downloadable from the device
• Supports power management & monitoring features (CiA 302-9 + custom for monitoring of bus voltage, input current, CPU voltage and CPU temperature)
• Bus powered, operating voltage 10-30VDC, <1W ^*
• 2-Pin 3.81mm terminal blocks for digital input signals
• DIN-rail enclosure 101x80, width 17.5mm
• T-Bus CAN-bus connection // 5-pin 3.81mm terminal block
• Micro-USB control & bus-powered capability
• Mating terminal blocks included, including the T-Bus contact block
• ATEX increased safety 'ec' (IEC 60079-7)

Input voltage range can be expanded using an external dropper resistor ~1kΩ per 60V with appropriate power rating.

Plug & Play configuration

Out of the box, the device is configured as self-starting to switch to OPERATIONAL state autonomously. The node-ID is programmed to 50 and one TPDO is configured to transmit inputs changes. This means the device can be used out-of-the-box by listening for 2 bytes from 'raw' CAN-ID 0x1B2. First byte carries a bitmask to indicate which bits have changed and which have chayed unchanged. Second byte contains the 6 bits relating to the respective inputs. (Raw meaning without any CANopen stack or functionality on the receiving end.)

• Automatic switch to NMT state OPERATIONAL
• TPDO1 (CAN-ID 0x180+$NODEID) sends 2 bytes with 6 inputs assigned to the 6LSB