
22
SM-Applications Modules & Motion Processors User Guide
Issue Number: 4
4.2.2
EIA-RS485 Serial port
You can connect the PC to the RJ45 serial port on the front of the drive. Special pre-
made leads are available from Control Techniques for this purpose. These leads are to
connect from your pc by either EIA-RS232 to EIA-RS485 or USB to EIA-RS485 - these
leads are used with other Control Techniques products that use a RJ45 EIA-RS485
connector such as the Commander SE and Commander SK.
Please refer to your drive user guide for the positioning and pin-out descriptions of the
RJ45 connector.
Figure 4-1 Communications Cable
A number of drives may be connected via their EIA-RS485 ports on an RTU network,
thus allowing the user to control any of those drives. In addition, if a drive has an SM-
Applications Modules & Motion Processors fitted these will be seen by SyPT Pro along
with any other SM-Applications Modules & Motion Processors connected to this over
CTNet. This is part of the routing capability of the CTNetAPI. See section 4.3
4.3
CTNetAPI routing
The CTNetAPI offers a routing capability that allows access to various drives or SM-
Applications Modules & Motion Processors in a system. The user is able to download to,
and upload from, these from within SyPTPro.
4.4
Configuring Communications within SyPTPro
Before attempting to go
on-line
to the SM-Applications Modules & Motion Processors
you must set SyPTPro up to use the correct communications protocol:
1. In the SyPTPro Configuration Editor select
PC
Communications
Settings
from the
Run menu
2. If connecting via CTNet (SM-Applications only), select CTNet as the protocol and
make sure the baud rate is correct (pressing the Help button will show details of the
other settings).
3. If connecting via RS232/485 to the front of the drive select
CT-RTU
as the protocol
and choose the appropriate RS232 COM port. Also ensure drive parameters
Pr 11.24
and
Pr 11.25
are set to
rtU
and
19200
respectively (these are the default
values).
Apps
Apps Lite Apps Plus
Lite V2
ST Plus
ST Indexer
Apps
Apps Lite Apps Plus
Lite V2
ST Plus
ST Indexer
Summary of Contents for Digitax ST Indexer
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