ElmoMC SimplIQ Digital Servo Drives-Harmonica Installation Guide - Manual (Page 32)

Harmonica Installation Guide Installation
MAN-HARIG (Ver. 1.902)
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32
Figure 20: Main Feedback – Heidenhain Feedback Connection Diagram
3.5.5.2. Communication Cable (Port J1)
The communication cable uses an 8-pin RJ-45 plug that connects to the J1 port on the front of
the Harmonica.
The communication interface may differ according to the user’s hardware. The Harmonica can
communicate using the following options:
a. RS-232, full duplex
b. CAN
RS-232 communication requires a standard, commercial 3-core null-modem cable connected
from the Harmonica to a serial interface on the PC. The interface is selected and set up in the
Composer software.
In order to benefit from CAN communication, the user must have an understanding of the basic
programming and timing issues of a CAN network. The interface is electrically isolated by
optocouplers.
For ease of setup and diagnostics of CAN communication, RS-232 and CAN can be used
simultaneously.