
D301087 1211 - BL20 CANopenii
4.6.2 Service Interface Connection ..........................................................................................................................................................4-14
4.7 Setting the bit transfer rate through DIP-switches.................................................................................... 4-15
4.8 Node-ID Setting ............................................................................................................................................ 4-17
4.9 Acceptance of the BL20 Station Configuration .......................................................................................... 4-19
4.10 Status Indicators/ Diagnostic Messages Gateway ..................................................................................... 4-20
4.10.1 Diagnostic Messages via LEDs ........................................................................................................................................................4-20
5 BL20 - Communication in CANopen
6 Guidelines for Station Planning
6.1 Random Module Arrangement...................................................................................................................... 6-2
6.1.1 Complete Planning ............................................................................................................................................................................... 6-2
6.1.2 Maximum System Extension ............................................................................................................................................................. 6-2
6.2 Power Supply .................................................................................................................................................. 6-4
6.2.1 Gateway Supply...................................................................................................................................................................................... 6-4
6.2.2 Module Bus Refreshing........................................................................................................................................................................ 6-4
6.2.3 Creating Potential Groups .................................................................................................................................................................. 6-8
6.2.4 Protecting the Service Interface on the Gateway ...................................................................................................................... 6-8
6.2.5 C-Rail (Cross Connection).................................................................................................................................................................... 6-9
6.2.6 Direct Wiring of Relay Modules ......................................................................................................................................................6-10
6.3 Plugging and Pulling Electronics Modules ................................................................................................. 6-11
6.4 Extending an Existing Station...................................................................................................................... 6-12
6.5 Firmware Download ..................................................................................................................................... 6-13
7 Guidelines for Electrical Installation
7.1 General Notes.................................................................................................................................................. 7-2
7.1.1 General ...................................................................................................................................................................................................... 7-2
7.1.2 Cable Routing.......................................................................................................................................................................................... 7-2
7.1.3 Cable Routing Inside and Outside of Cabinets: .......................................................................................................................... 7-2
7.1.4 Lightning Protection ............................................................................................................................................................................ 7-3
7.1.5 Transmission Cables ............................................................................................................................................................................. 7-3
7.1.6 Cable Types.............................................................................................................................................................................................. 7-3
7.2 Potential Relationships .................................................................................................................................. 7-4
7.2.1 General ...................................................................................................................................................................................................... 7-4
7.2.2 Potential-Free Installation .................................................................................................................................................................. 7-4
7.2.3 Non-isolated Installation..................................................................................................................................................................... 7-4
7.3 Electromagnetic Compatibility (EMC)........................................................................................................... 7-5
7.3.1 Ensuring Electromagnetic Compatibility ...................................................................................................................................... 7-5
7.3.2 Grounding of Inactive Metal Components................................................................................................................................... 7-5
7.3.3 PE Connection......................................................................................................................................................................................... 7-5
7.3.4 Earth-Free Operation............................................................................................................................................................................ 7-5
7.3.5 Mounting Rails ........................................................................................................................................................................................ 7-6
7.3.6 EMC Compliant Cabinet Installation............................................................................................................................................... 7-7
7.4 Shielding of cables.......................................................................................................................................... 7-8
7.5 Potential Compensation ................................................................................................................................ 7-9