DeviceNet NI-DNET User Manual

Chapter 2 NI-DNET Hardware Overview
NI-DNET User Manual 2-2 ni.com
For more information on the DeviceNet physical layer and cables used to
connect to your DeviceNet devices, refer to Appendix B, Cabling
Requirements.
For connection to the network, the PCI-CAN, PXI-8461, and
PCMCIA-CAN for DeviceNet provide combicon-style pluggable screw
terminals, as required by the DeviceNet Specification.
Differences Between CAN Kits and DeviceNet Kits
National Instruments provides hardware/software kits for both CAN and
DeviceNet. Since the CAN kits apply to a broad range of applications such
as automotive testing, the hardware in those kits offers a wide variety of
options. To ensure that the hardware product operates properly on a
DeviceNet network, we recommend that you purchase DeviceNet kits only.
The card provided in your DeviceNet kit can be used with both NI-DNET
and NI-CAN software.
Hardware in CAN kits is referenced as Series 2. Hardware in DeviceNet
kits is referenced as Series 1. Series 2 CAN cards cannot be used with the
NI-DNET software (NI-CAN only). The features of Series 2 CAN cards are
specifically designed for CAN applications, and provide no distinct
advantages for DeviceNet. For more information on Series 2 hardware,
refer to the hardware overview in the NI-CAN Hardware and Software
Manual.
Hardware in CAN kits offers 1-port and 2-port variants. NI-DNET operates
on one port only. If you use NI-DNET on a 2-port Series 1 CAN card, only
the top port can be used.
Hardware in CAN kits offer special transceivers (physical layer) such as
Low-Speed/Fault-Tolerant (LS) and Single-Wire (SW). Hardware in CAN
kits also offer the option to power the transceiver from the card, not the
network. These transceivers cannot be used with DeviceNet. Only
High-Speed (HS) transceivers comply with the DeviceNet specification.
Hardware in CAN kits use the DB-9 D-SUB connector. Hardware in
DeviceNet kits use the combicon-style connector from the DeviceNet
specification.