Design - ABB SPA 650 Series Communication Protocol Manual

1MRK 511 418-UEN A
3.2
650 series 2.2 IEC
Communication protocol manual
IEC16000079 V1 EN-US
Figure 5: Rear view of 1/2 x 19" casing with 1 TRM slot
There are two types of IO connectors: snap-in connector for plastic fibre cables and
ST/bayonet connector for glass fibre cables. The SLM can be equipped with either
type or connector or with a combination of both types of connectors. This is
identified with a tag.
Connect the incoming optical fibre to the RX receiver input, and the outgoing
optical fibre to the TX transmitter output. Pay special attention to the instructions
concerning handling and connection of fibre cables.
For setting the transfer rate (baud rate) and slave number, please refer to the
Application manual and Commissioning manual respectively.

Design

Using the rear SPA port for either local or remote communication with a PC
requires the following equipment:
• Optical fibres
• Opto/electrical converter for the PC
• PC
SPA operation principle
IEC16000079-1-en.vsd
Section 3
M11877-3 v6
19